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DATASHEET
Am29LV320MT/B
32 Megabit (2 M x 16-Bit/4 M x 8-Bit) MirrorBit 3.0 Volt-only Boot Sector Flash Memory
DISTINCTIVE CHARACTERISTICS
ARCHITECTURAL ADVANTAGES Single power supply operation -- 3 V for read, erase, and program operations Manufactured on 0.23 m MirrorBit process technology SecSi (Secured Silicon) Sector region -- 128-word/256-byte sector for permanent, secure identification through an 8-word/16-byte random Electronic Serial Number, accessible through a command sequence -- May be programmed and locked at the factory or by the customer Flexible sector architecture -- Sixty-three 32 Kword/64-Kbyte sectors -- Eight 4 Kword/8 Kbyte boot sectors Compatibility with JEDEC standards -- Provides pinout and software compatibility for single-power supply flash, and superior inadvertent write protection Minimum 100,000 erase cycle guarantee per sector 20-year data retention at 125C PERFORMANCE CHARACTERISTICS High performance -- 90 ns access time -- 25 ns page read times -- 0.5 s typical sector erase time -- 15 s typical effective write buffer word programming time: 16-word/32-byte write buffer reduces overall programming time for multiple-word/byte updates -- 4-word/8-byte page read buffer -- 16-word/32-byte write buffer Low power consumption (typical values at 3.0 V, 5 MHz) -- 13 mA typical active read current -- 50 mA typical erase/program current -- 1 A typical standby mode current Package options -- 48-pin TSOP -- 48-ball Fine-pitch BGA -- 64-ball Fortified BGA SOFTWARE & HARDWARE FEATURES Software features -- Program Suspend & Resume: read other sectors before programming operation is completed -- Erase Suspend & Resume: read/program other sectors before an erase operation is completed -- Data# polling & toggle bits provide status -- Unlock Bypass Program command reduces overall multiple-word programming time -- CFI (Common Flash Interface) compliant: allows host system to identify and accommodate multiple flash devices Hardware features -- Sector Group Protection: hardware-level method of preventing write operations within a sector group -- Temporary Sector Unprotect: VID-level method of changing code in locked sectors -- WP#/ACC input: Write Protect input (WP#) protects top or bottom two sectors regardless of sector protection settings ACC (high voltage) accelerates programming time for higher throughput during system production -- Hardware reset input (RESET#) resets device -- Ready/Busy# output (RY/BY#) indicates program or erase cycle completion
This Data Sheet states AMD's current technical specifications regarding the Products described herein. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications.
Publication# 26518 Rev: B Amendment/0 Issue Date: May 16, 2003
Refer to AMD's Website (www.amd.com) for the latest information.
DATASHEET
GENERAL DESCRIPTION
The Am29LV320M/TB is a 32 Mbit, 3.0 volt single power supply flash memory device organized as 2,097,152 words or 4,194,304 bytes. The device has an 8-bit/16-bit bus and can be programmed either in the host system or in standard EPROM programmers. An access time of 90, 100, 110, or 120 ns is available. Note that each access time has a specific operating voltage range (VCC) and an I/O voltage range (VIO), as specified in the Product Selector Guide and the Ordering Information sections. The device is offered in a 48-pin TSOP, 48-ball Fine-pitch BGA or 64-ball Fortified BGA package. Each device has separate chip enable (CE#), write enable (WE#) and output enable (OE#) controls. Each device requires only a single 3.0 volt power supply for both read and write functions. In addition to a V CC input, a high-voltage accelerated program (ACC) function provides shorter programming times through increased current on the WP#/ACC input. This feature is intended to facilitate factory throughput during system production, but may also be used in the field if desired. The device is entirely command set compatible with the JEDEC single-power-supply Flash standard. Commands are written to the device using standard microprocessor write timing. Write cycles also internally latch addresses and data needed for the programming and erase operations. The sector erase architecture allows memory sectors to be erased and reprogrammed without affecting the data contents of other sectors. The device is fully erased when shipped from the factory. Device programming and erasure are initiated through command sequences. Once a program or erase operation has begun, the host system need only poll the DQ7 (Data# Polling) or DQ6 (toggle) status bits or monitor the Ready/Busy# (RY/BY#) output to determine whether the operation is complete. To facilitate programming, an Unlock Bypass mode reduces command sequence overhead by requiring only two write cycles to program data instead of four. Hardware data protection measures include a low V CC detector that automatically inhibits write operations during power transitions. The hardware sector protection feature disables both program and erase operations in any combination of sectors of memory. This can be achieved in-system or via programming equipment. The Erase Suspend/Erase Resume feature allows the host system to pause an erase operation in a given sector to read or program any other sector and then complete the erase operation. The Program Suspend/Program Resume feature enables the host system to pause a program operation in a given sector to read any other sector and then complete the program operation. The hardware RESET# pin terminates any operation in progress and resets the device, after which it is then ready for a new operation. The RESET# pin may be tied to the system reset circuitry. A system reset would thus also reset the device, enabling the host system to read boot-up firmware from the Flash memory device. The device reduces power consumption in the standby mode when it detects specific voltage levels on CE# and RESET#, or when addresses have been stable for a specified period of time. The Write Protect (WP#) feature protects the top or bottom two sectors by asserting a logic low on the WP#/ACC pin. The protected sector will still be protected even during accelerated programming. The SecSi (Secured Silicon) Sector provides a 128-word/256-byte area for code or data that can be permanently protected. Once this sector is protected, no further changes within the sector can occur. AMD MirrorBit flash technology combines years of Flash memory manufacturing experience to produce the highest levels of quality, reliability and cost effectiveness. The device electrically erases all bits within a sector simultaneously via hot-hole assisted erase. The data is programmed using hot electron injection.
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DATASHEET
MIRRORBIT 32 MBIT DEVICE FAMILY
Device LV033MU LV320MT/B LV320MH/L Bus x8 x8/x16 x8/x16 Sector Architecture Uniform (64 Kbyte) Boot (8 x 8 Kbyte at top & bottom) Uniform (64 Kbyte) Packages 40-pin TSOP (std. & rev. pinout), 48-ball FBGA 48-pin TSOP, 48-ball Fine-pitch BGA, 64-ball Fortified BGA 56-pin TSOP (std. & rev. pinout), 64-ball Fortified BGA VIO Yes No Yes RY/BY# Yes Yes Yes WP#, ACC ACC only WP#/ACC pin WP#/ACC pin WP# Protection No WP# 2 x 8 Kbyte top or bottom 1 x 64 Kbyte high or low
RELATED DOCUMENTS
To download related documents, click on the following links or go to www.amd.comFlash MemoryProduct InformationMirrorBitFlash InformationTechnical Documentation. MirrorBitTM Flash Memory Write Buffer Programming and Page Buffer Read Implementing a Common Layout for AMD MirrorBit and Intel StrataFlash Memory Devices Migrating from Single-byte to Three-byte Device IDs AMD MirrorBitTM White Paper
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DATASHEET
TABLE OF CONTENTS
Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 5 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . 6 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 9 Device Bus Operations . . . . . . . . . . . . . . . . . . . . 10
Table 1. Device Bus Operations .....................................................10
DQ3: Sector Erase Timer ....................................................... 37 DQ1: Write-to-Buffer Abort ..................................................... 37
Table 14. Write Operation Status ................................................... 37
Absolute Maximum Ratings. . . . . . . . . . . . . . . . . 38
Figure 10. Maximum Negative Overshoot Waveform ................... 38 Figure 11. Maximum Positive Overshoot Waveform..................... 38
Requirements for Reading Array Data ................................... 10 Writing Commands/Command Sequences ............................ 11 Automatic Sleep Mode ........................................................... 12 RESET#: Hardware Reset Pin ............................................... 12 Output Disable Mode .............................................................. 12
Table 2. Am29LV320MT Top Boot Sector Architecture ..................12 Table 3. Am29LV320MB Bottom Boot Sector Architecture .............14 Table 4. Autoselect Codes, (High Voltage Method) .......................16
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 39 Test Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 12. Test Setup.................................................................... 40 Table 15. Test Specifications ......................................................... 40
Key to Switching Waveforms. . . . . . . . . . . . . . . . 40
Figure 13. Input Waveforms and Measurement Levels...................................................................... 40
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 41 Read-Only Operations ........................................................... 41
Figure 14. Read Operation Timings ............................................... 41 Figure 15. Page Read Timings ...................................................... 42
Sector Group Protection and Unprotection ............................. 17
Table 5. Am29LV320MT Top Boot Sector Protection .....................17 Table 6. Am29LV320MB Bottom Boot Sector Protection ................17
Hardware Reset (RESET#) .................................................... 43
Figure 16. Reset Timings ............................................................... 43
Write Protect (WP#) ................................................................ 17 Temporary Sector Group Unprotect ....................................... 18
Figure 1. Temporary Sector Group Unprotect Operation................ 18 Figure 2. In-System Sector Group Protect/Unprotect Algorithms ... 19
Erase and Program Operations .............................................. 44
Figure 17. Program Operation Timings.......................................... Figure 18. Accelerated Program Timing Diagram.......................... Figure 19. Chip/Sector Erase Operation Timings .......................... Figure 20. Data# Polling Timings (During Embedded Algorithms). Figure 21. Toggle Bit Timings (During Embedded Algorithms)...... Figure 22. DQ2 vs. DQ6................................................................. 45 45 46 47 48 48
SecSi (Secured Silicon) Sector Flash Memory Region .......... 20
Table 7. SecSi Sector Contents ......................................................20 Figure 3. SecSi Sector Protect Verify.............................................. 21
Hardware Data Protection ...................................................... 21 Common Flash Memory Interface (CFI) . . . . . . . 21 Command Definitions . . . . . . . . . . . . . . . . . . . . . 24 Reading Array Data ................................................................ 24 Reset Command ..................................................................... 25 Autoselect Command Sequence ............................................ 25 Enter SecSi Sector/Exit SecSi Sector Command Sequence .. 25 Word/Byte Program Command Sequence ............................. 25
Figure 4. Write Buffer Programming Operation............................... 28 Figure 5. Program Operation .......................................................... 29
Temporary Sector Unprotect .................................................. 49
Figure 23. Temporary Sector Group Unprotect Timing Diagram ... 49 Figure 24. Sector Group Protect and Unprotect Timing Diagram .. 50
Alternate CE# Controlled Erase and Program Operations ..... 51
Figure 25. Alternate CE# Controlled Write (Erase/Program) Operation Timings.......................................................................... 52
Program Suspend/Program Resume Command Sequence ... 29
Figure 6. Program Suspend/Program Resume............................... 30
Chip Erase Command Sequence ........................................... 30 Sector Erase Command Sequence ........................................ 30
Figure 7. Erase Operation............................................................... 31
Erase Suspend/Erase Resume Commands ........................... 31 Write Operation Status . . . . . . . . . . . . . . . . . . . . 34 DQ7: Data# Polling ................................................................. 34
Figure 8. Data# Polling Algorithm ................................................... 34
DQ6: Toggle Bit I .................................................................... 35
Figure 9. Toggle Bit Algorithm......................................................... 36
DQ2: Toggle Bit II ................................................................... 36 Reading Toggle Bits DQ6/DQ2 .............................................. 36 DQ5: Exceeded Timing Limits ................................................ 37
Erase And Programming Performance. . . . . . . . 53 Latchup Characteristics . . . . . . . . . . . . . . . . . . . . 53 TSOP Pin and BGA Package Capacitance . . . . . 54 Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 55 TS 048--48-Pin Standard Pinout Thin Small Outline Package (TSOP) ................................................................................... 55 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 56 TS 048--48-Pin Standard Pinout Thin Small Outline Package (TSOP) ................................................................................... 56 FBC048--48-Ball Fine-pitch Ball Grid Array (fBGA) 9 x 8 mm Package .................................................................. 57 Physical Dimensions LAA064--64-Ball Fortified Ball Grid Array (FBGA) 13 x 11 mm Package . . . . . . . . . . . . . . . . . . . . . . . 58 Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 60
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DATASHEET
PRODUCT SELECTOR GUIDE
Part Number Speed Option VCC = 3.0-3.6 V VCC = 2.7-3.6 V 90 90 25 25 90R 100R 100 100 100 30 30 30 30 110 110 40 40 30 30 Am29LV320MT/B 110R 110 120 120 40 40 120R 120
Max. Access Time (ns) Max. CE# Access Time (ns) Max. Page access time (tPACC) Max. OE# Access Time (ns)
Note: See "AC Characteristics" for full specifications.
BLOCK DIAGRAM
RY/BY# VCC VSS Erase Voltage Generator RESET# WE# WP#/ACC BYTE# Input/Output Buffers Sector Switches DQ0-DQ15 (A-1)
State Control Command Register
PGM Voltage Generator Chip Enable Output Enable Logic STB Data Latch
CE# OE#
STB VCC Detector Timer Address Latch
Y-Decoder
Y-Gating
X-Decoder
Cell Matrix
A20-A0
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DATASHEET
CONNECTION DIAGRAMS
A15 A14 A13 A12 A11 A10 A9 A8 A19 A20 WE# RESET# NC WP#/ACC RY/BY# A18 A17 A7 A6 A5 A4 A3 A2 A1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48-Pin Standard TSOP
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
A16 BYTE# VSS DQ15/A-1 DQ7 DQ14 DQ6 DQ13 DQ5 DQ12 DQ4 VCC DQ11 DQ3 DQ10 DQ2 DQ9 DQ1 DQ8 DQ0 OE# VSS CE# A0
48-ball Fine-pitch BGA Top View, Balls Facing Down
A6 A13 A5 A9 A4 WE# A3 B6 A12 B5 A8 B4 RESET# B3 C6 A14 C5 A10 C4 NC C3 A18 C2 A6 C1 A2 D6 A15 D5 A11 D4 A19 D3 A20 D2 A5 D1 A1 E6 A16 E5 DQ7 E4 DQ5 E3 DQ2 E2 DQ0 E1 A0 F6 G6 H6 VSS H5 DQ6 H4 DQ4 H3 DQ3 H2 DQ1 H1 VSS
BYTE# DQ15/A-1 F5 DQ14 F4 DQ12 F3 DQ10 F2 DQ8 F1 CE# G5 DQ13 G4 VCC G3 DQ11 G2 DQ9 G1 OE#
RY/BY# WP#/ACC A2 A7 A1 A3 B2 A17 B1 A4
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DATASHEET
CONNECTION DIAGRAMS
64-Ball Fortified BGA Top View, Balls Facing Down
A8 NC A7 A13 A6 A9 A5 WE# A4
B8 NC B7 A12 B6 A8 B5 RESET# B4
C8 NC C7 A14 C6 A10 C5 NC C4 A18 C3 A6 C2 A2 C1 NC
D8 NC D7 A15 D6 A11 D5 A19 D4 A20 D3 A5 D2 A1 D1 NC
E8 VSS E7 A16 E6 DQ7 E5 DQ5 E4 DQ2 E3 DQ0 E2 A0 E1 NC
F8 NC F7
G8 NC G7
H8 NC H7 VSS H6 DQ6 H5 DQ4 H4 DQ3 H3 DQ1 H2 VSS H1 NC
BYTE# DQ15/A-1 F6 DQ14 F5 DQ12 F4 DQ10 F3 DQ8 F2 CE# F1 NC G6 DQ13 G5 VCC G4 DQ11 G3 DQ9 G2 OE# G1 NC
RY/BY# WP#/ACC A3 A7 A2 A3 A1 NC B3 A17 B2 A4 B1 NC
Special Package Handling Instructions
Special handling is required for Flash Memory products in molded packages (TSOP and BGA). The package
and/or data integrity may be compromised if the package body is exposed to temperatures above 150C for prolonged periods of time.
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DATASHEET
PIN DESCRIPTION
A20-A0 = 21 Address inputs DQ14-DQ0 = 15 Data inputs/outputs DQ15/A-1 CE# OE# WE# WP#/ACC RESET# RY/BY# BYTE# VCC = DQ15 (Data input/output, word mode), A-1 (LSB Address input, byte mode) = Chip Enable input = Output Enable input = Write Enable input = Hardware Write Protect input/Programming Acceleration input = Hardware Reset Pin input = Ready/Busy output = Selects 8-bit or 16-bit mode = 3.0 volt-only single power supply (see Product Selector Guide for speed options and voltage supply tolerances) = Device Ground = Pin Not Connected Internally
LOGIC SYMBOL
21 A20-A0 CE# OE# WE# WP#/ACC RESET# BYTE# RY/BY# DQ15-DQ0 (A-1) 16 or 8
VSS NC
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DATASHEET
ORDERING INFORMATION Standard Products
AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is formed by a combination of the following:
Am29LV320M
T
120R
PC
I
TEMPERATURE RANGE I = Industrial (-40C to +85C) PACKAGE TYPE E = 48-Pin Thin Small Outline Package (TSOP) Standard Pinout (TS 048) PC = 64-Ball Fortified Ball Grid Array (FBGA), 1.0 mm pitch, 13 x 11 mm package (LAA064) WC = 48-Ball Fine Pitch Ball Grid Array (FBGA), 0.80 mm pitch, 9 x 8 mm package (FBC048) SPEED OPTION See Product Selector Guide and Valid Combinations SECTOR ARCHITECTURE AND WP# PROTECTION (WP# = VIL) T = Top boot sector device, top two address sectors protected B = Bottom boot sector device, bottom two address sectors protected
DEVICE NUMBER/DESCRIPTION Am29LV320MT/B 32 Megabit (2 M x 16-Bit/4 M x 8-Bit) MirrorBit Boot Sector Flash Memory 3.0 Volt-only Read, Program, and Erase
Valid Combinations for TSOP Package Am29LV320MT90R, Am29LV320MB90R Am29LV320MT100, Am29LV320MB100 Am29LV320MT110, Am29LV320MB110 Am29LV320MT120, Am29LV320MB120 Am29LV320MT100R, Am29LV320MB100R Am29LV320MT110R, Am29LV320MB110R Am29LV320MT120R, Am29LV320MB120R EI
Speed (ns) 90 100 110 120 100 110 120
VCC Range 3.0-3.6 V
Valid Combinations for BGA Packages Order Number Am29LV320MT90R Am29LV320MB90R Am29LV320MT100 Am29LV320MB100 WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI WCI PCI Package Marking L320MT90QI L320MT90NI L320MB90QI L320MB10NI L320MT10UI L320MT10PI L320MB10UI L320MB10PI L320MT11UI L320MT11PI L320MB11UI L320MB11PI L320MT12UI L320MT12PI L320MB12UI L320MB12PI L320MT10QI L320MT10NI L320MB10QI L320MB10NI L320MT11QI L320MT11NI L320MB11QI L320MB11NI L320MT12QI L320MT12NI L320MB12QI L320MB12NI
Speed (ns)
VCC Range
90
3.0- 3.6 V
2.7-3.6 V
100
3.0-3.6 V Am29LV320MT110 Am29LV320MB110 Am29LV320MT120
110
2.7- 3.6 V
Valid Combinations
Valid Combinations list configurations planned to be supported in volume for this device. Consult the local AMD sales office to confirm availability of specific valid combinations and to check on newly released combinations.
Am29LV320MB120 Am29LV320MT100R Am29LV320MB100R Am29LV320MT110R Am29LV320MB110R Am29LV320MT120R Am29LV320MB120R
120
100 3.0- 3.6 V 110
120
3.0- 3.6 V
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DATASHEET
DEVICE BUS OPERATIONS
This section describes the requirements and use of the device bus operations, which are initiated through the internal command register. The command register itself does not occupy any addressable memory location. The register is a latch used to store the commands, along with the address and data information needed to execute the command. The contents of the Table 1. register serve as inputs to the internal state machine. The state machine outputs dictate the function of the device. Table 1 lists the device bus operations, the inputs and control levels they require, and the resulting output. The following subsections describe each of these operations in further detail.
Device Bus Operations
DQ8-DQ15
Operation Read Write (Program/Erase) Accelerated Program Standby Output Disable Reset Sector Group Protect (Note 2) Sector Group Unprotect (Note 2) Temporary Sector Group Unprotect
CE# L L L VCC 0.3 V L X L
OE# L H H X H X H
WE# H L L X H X L
RESET# H H H VCC 0.3 V H L VID
WP#
ACC
Addresses (Note 2) AIN AIN AIN X X X SA, A6 =L, A3=L, A2=L, A1=H, A0=L SA, A6=H, A3=L, A2=L, A1=H, A0=L AIN
DQ0- DQ7 DOUT
BYTE# = VIH DOUT
BYTE# = VIL DQ8-DQ14 = High-Z, DQ15 = A-1 High-Z High-Z High-Z X
X (Note 3) (Note 3) X X X H
X X VHH H X X X
(Note 4) (Note 4) (Note 4) (Note 4) High-Z High-Z High-Z (Note 4) High-Z High-Z High-Z X
L
H
L
VID
H
X
(Note 4)
X
X
X
X
X
VID
H
X
(Note 4) (Note 4)
High-Z
Legend: L = Logic Low = VIL, H = Logic High = VIH, VID = 11.5-12.5 V, VHH = 11.5-12.5 V, X = Don't Care, SA = Sector Address, AIN = Address In, DIN = Data In, DOUT = Data Out Notes: 1. Addresses are A20:A0 in word mode; A20:A-1 in byte mode. Sector addresses are A20:A12 in both modes. 2. The sector protect and sector unprotect functions may also be implemented via programming equipment. See the "Sector Group Protection and Unprotection" section. 3. If WP# = VIL, the first or last sector remains protected. If WP# = VIH, the top two or bottom two sectors will be protected or unprotected as determined by the method described in "Sector Group Protection and Unprotection". All sectors are unprotected when shipped from the factory (The SecSi Sector may be factory protected depending on version ordered.) 4. DIN or DOUT as required by command sequence, data polling, or sector protect algorithm (see Figure 2).
Word/Byte Configuration
The BYTE# pin controls whether the device data I/O pins operate in the byte or word configuration. If the BYTE# pin is set at logic `1', the device is in word configuration, DQ0-DQ15 are active and controlled by CE# and OE#. If the BYTE# pin is set at logic `0', the device is in byte configuration, and only data I/O pins DQ0-DQ7 are active and controlled by CE# and OE#. The data I/O
pins DQ8-DQ14 are tri-stated, and the DQ15 pin is used as an input for the LSB (A-1) address function.
Requirements for Reading Array Data
To read array data from the outputs, the system must drive the CE# and OE# pins to VIL. CE# is the power control and selects the device. OE# is the output control and gates array data to the output pins. WE# should remain at VIH.
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DATASHEET The internal state machine is set for reading array data upon device power-up, or after a hardware reset. This ensures that no spurious alteration of the memory content occurs during the power transition. No command is necessary in this mode to obtain array data. Standard microprocessor read cycles that assert valid addresses on the device address inputs produce valid data on the device data outputs. The device remains enabled for read access until the command register contents are altered. See "Reading Array Data" for more information. Refer to the AC Read-Only Operations table for timing specifications and to Figure 14 for the timing diagram. Refer to the DC Characteristics table for the active current specification on reading array data. Page Mode Read The device is capable of fast page mode read and is compatible with the page mode Mask ROM read operation. This mode provides faster read access speed for random locations within a page. The page size of the device is 4 words/8 bytes. The appropriate page is selected by the higher address bits A(max)-A2. Address bits A1-A0 in word mode (A1-A-1 in byte mode) determine the specific word within a page. This is an asynchronous operation; the microprocessor supplies the specific word location. The random or initial page access is equal to tACC or tCE and subsequent page read accesses (as long as the locations specified by the microprocessor falls within that page) is equivalent to tPACC. When CE# is deasserted and reasserted for a subsequent access, the access time is tACC or tCE . Fast page mode accesses are obtained by keeping the "read-page addresses" constant and changing the "intra-read page" addresses. acteristics section contains timing specification tables and timing diagrams for write operations. Write Buffer Write Buffer Programming allows the system to write a maximum of 16 words/32 bytes in one programming operation. This results in faster effective programming time than the standard programming algorithms. See "Write Buffer" for more information. Accelerated Program Operation The device offers accelerated program operations through the ACC function. This is one of two functions provided by the WP#/ACC pin. This function is primarily intended to allow faster manufacturing throughput at the factory. If the system asserts VHH on this pin, the device automatically enters the aforementioned Unlock Bypass mode, temporarily unprotects any protected sectors, and uses the higher voltage on the pin to reduce the time required for program operations. The system would use a two-cycle program command sequence as required by the Unlock Bypass mode. Removing VHH from the WP#/ACC pin returns the device to normal operation. Note that the WP#/ACC pin must not be at VHH for operations other than accelerated programming, or device damage may result. In addition, no external pullup is necessary since the WP#/ACC pin has internal pullup to VCC. Autoselect Functions If the system writes the autoselect command sequence, the device enters the autoselect mode. The system can then read autoselect codes from the internal register (which is separate from the memory array) on DQ7-DQ0. Standard read cycle timings apply in this mode. Refer to the Autoselect Mode and Autoselect Command Sequence sections for more information.
Writing Commands/Command Sequences
To write a command or command sequence (which includes programming data to the device and erasing sectors of memory), the system must drive WE# and CE# to VIL, and OE# to VIH. The device features an Unlock Bypass mode to facilitate faster programming. Once the device enters the Unlock Bypass mode, only two write cycles are required to program a word or byte, instead of four. The "Word/Byte Program Command Sequence" section has details on programming data to the device using both standard and Unlock Bypass command sequences. An erase operation can erase one sector, multiple sectors, or the entire device. Tables 3 and 2 indicates the address space that each sector occupies. Refer to the DC Characteristics table for the active current specification for the write mode. The AC Char-
Standby Mode
When the system is not reading or writing to the device, it can place the device in the standby mode. In this mode, current consumption is greatly reduced, and the outputs are placed in the high impedance state, independent of the OE# input. The device enters the CMOS standby mode when the CE# and RESET# pins are both held at VCC 0.3 V. (Note that this is a more restricted voltage range than VIH.) If CE# and RESET# are held at VIH, but not within VCC 0.3 V, the device will be in the standby mode, but the standby current will be greater. The device requires standard access time (t CE ) for read access when the device is in either of these standby modes, before it is ready to read data.
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DATASHEET If the device is deselected during erasure or programming, the device draws active current until the operation is completed. Refer to the DC Characteristics table for the standby current specification. read/write commands for the duration of the RESET# pulse. The device also resets the internal state machine to reading array data. The operation that was interrupted should be reinitiated once the device is ready to accept another command sequence, to ensure data integrity. Current is reduced for the duration of the RESET# pulse. When RESET# is held at VSS0.3 V, the device draws CMOS standby current (ICC4). If RESET# is held at VIL but not within VSS0.3 V, the standby current will be greater. The RESET# pin may be tied to the system reset circuitry. A system reset would thus also reset the Flash memory, enabling the system to read the boot-up firmware from the Flash memory. Refer to the AC Characteristics tables for RESET# parameters and to Figure 16 for the timing diagram.
Automatic Sleep Mode
The automatic sleep mode minimizes Flash device energy consumption. The device automatically enables this mode when addresses remain stable for tACC + 30 ns. The automatic sleep mode is independent of the CE#, WE#, and OE# control signals. Standard address access timings provide new data when addresses are changed. While in sleep mode, output data is latched and always available to the system. Refer to the DC Characteristics table for the automatic sleep mode current specification.
RESET#: Hardware Reset Pin
The RESET# pin provides a hardware method of resetting the device to reading array data. When the RESET# pin is driven low for at least a period of tRP, the device immediately terminates any operation in progress, tristates all output pins, and ignores all Table 2.
Sector SA0 SA1 SA2 SA3 SA4 SA5 SA6 SA7 SA8 SA9 SA10 SA11 SA12 SA13 SA14 SA15 SA16 SA17 SA18 SA19 SA20 SA21 SA22 SA23 SA24 SA25 SA26 SA27 Sector Address A20-A12 000000xxx 000001xxx 000010xxx 000011xxx 000100xxx 000101xxx 000110xxx 000111xxx 001000xxx 001001xxx 001010xxx 001011xxx 001100xxx 001101xxx 001101xxx 001111xxx 010000xxx 010001xxx 010010xxx 010011xxx 010100xxx 010101xxx 010110xxx 010111xxx 011000xxx 011001xxx 011010xxx 011011xxx
Output Disable Mode
When the OE# input is at VIH, output from the device is disabled. The output pins are placed in the high impedance state.
Am29LV320MT Top Boot Sector Architecture
Sector Size (Kbytes/Kwords) 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 (x8) Address Range 000000h-00FFFFh 010000h-01FFFFh 020000h-02FFFFh 030000h-03FFFFh 040000h-04FFFFh 050000h-05FFFFh 060000h-06FFFFh 070000h-07FFFFh 080000h-08FFFFh 090000h-09FFFFh 0A0000h-0AFFFFh 0B0000h-0BFFFFh 0C0000h-0CFFFFh 0D0000h-0DFFFFh 0E0000h-0EFFFFh 0F0000h-0FFFFFh 100000h-00FFFFh 110000h-11FFFFh 120000h-12FFFFh 130000h-13FFFFh 140000h-14FFFFh 150000h-15FFFFh 160000h-16FFFFh 170000h-17FFFFh 180000h-18FFFFh 190000h-19FFFFh 1A0000h-1AFFFFh 1B0000h-1BFFFFh (x16) Address Range 00000h-07FFFh 08000h-0FFFFh 10000h-17FFFh 18000h-1FFFFh 20000h-27FFFh 28000h-2FFFFh 30000h-37FFFh 38000h-3FFFFh 40000h-47FFFh 48000h-4FFFFh 50000h-57FFFh 58000h-5FFFFh 60000h-67FFFh 68000h-6FFFFh 70000h-77FFFh 78000h-7FFFFh 80000h-87FFFh 88000h-8FFFFh 90000h-97FFFh 98000h-9FFFFh A0000h-A7FFFh A8000h-AFFFFh B0000h-B7FFFh B8000h-BFFFFh C0000h-C7FFFh C8000h-CFFFFh D0000h-D7FFFh D8000h-DFFFFh
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DATASHEET Table 2.
Sector SA28 SA29 SA30 SA31 SA32 SA33 SA34 SA35 SA36 SA37 SA38 SA39 SA40 SA41 SA42 SA43 SA44 SA45 SA46 SA47 SA48 SA49 SA50 SA51 SA52 SA53 SA54 SA55 SA56 SA57 SA58 SA59 SA60 SA61 SA62 SA63 SA64 SA65 SA66 SA67 SA68 SA69 SA70
Am29LV320MT Top Boot Sector Architecture (Continued)
Sector Size (Kbytes/Kwords) 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 8/4 8/4 8/4 8/4 8/4 8/4 8/4 8/4 (x8) Address Range 1C0000h-1CFFFFh 1D0000h-1DFFFFh 1E0000h-1EFFFFh 1F0000h-1FFFFFh 200000h-20FFFFh 210000h-21FFFFh 220000h-22FFFFh 230000h-23FFFFh 240000h-24FFFFh 250000h-25FFFFh 260000h-26FFFFh 270000h-27FFFFh 280000h-28FFFFh 290000h-29FFFFh 2A0000h-2AFFFFh 2B0000h-2BFFFFh 2C0000h-2CFFFFh 2D0000h-2DFFFFh 2E0000h-2EFFFFh 2F0000h-2FFFFFh 300000h-30FFFFh 310000h-31FFFFh 320000h-32FFFFh 330000h-33FFFFh 340000h-34FFFFh 350000h-35FFFFh 360000h-36FFFFh 370000h-37FFFFh 380000h-38FFFFh 390000h-39FFFFh 3A0000h-3AFFFFh 3B0000h-3BFFFFh 3C0000h-3CFFFFh 3D0000h-3DFFFFh 3E0000h-3EFFFFh 3F0000h-3F1FFFh 3F2000h-3F3FFFh 3F4000h-3F5FFFh 3F6000h-3F7FFFh 3F8000h-3F9FFFh 3FA000h-3FBFFFh 3FC000h-3FDFFFh 3FE000h-3FFFFFh (x16) Address Range E0000h-E7FFFh E8000h-EFFFFh F0000h-F7FFFh F8000h-FFFFFh F9000h-107FFFh 108000h-10FFFFh 110000h-117FFFh 118000h-11FFFFh 120000h-127FFFh 128000h-12FFFFh 130000h-137FFFh 138000h-13FFFFh 140000h-147FFFh 148000h-14FFFFh 150000h-157FFFh 158000h-15FFFFh 160000h-167FFFh 168000h-16FFFFh 170000h-177FFFh 178000h-17FFFFh 180000h-187FFFh 188000h-18FFFFh 190000h-197FFFh 198000h-19FFFFh 1A0000h-1A7FFFh 1A8000h-1AFFFFh 1B0000h-1B7FFFh 1B8000h-1BFFFFh 1C0000h-1C7FFFh 1C8000h-1CFFFFh 1D0000h-1D7FFFh 1D8000h-1DFFFFh 1E0000h-1E7FFFh 1E8000h-1EFFFFh 1F0000h-1F7FFFh 1F8000h-1F8FFFh 1F9000h-1F9FFFh 1FA000h-1FAFFFh 1FB000h-1FBFFFh 1FC000h-1FCFFFh 1FD000h-1FDFFFh 1FE000h-1FEFFFh 1FF000h-1FFFFFh
Sector Address A20-A12 011000xxx 011101xxx 011110xxx 011111xxx 100000xxx 100001xxx 100010xxx 101011xxx 100100xxx 100101xxx 100110xxx 100111xxx 101000xxx 101001xxx 101010xxx 101011xxx 101100xxx 101101xxx 101110xxx 101111xxx 110000xxx 110001xxx 110010xxx 110011xxx 100100xxx 110101xxx 110110xxx 110111xxx 111000xxx 111001xxx 111010xxx 111011xxx 111100xxx 111101xxx 111110xxx 111111000 111111001 111111010 111111011 111111100 111111101 111111110 111111111
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DATASHEET Table 3.
Sector SA0 SA1 SA2 SA3 SA4 SA5 SA6 SA7 SA8 SA9 SA10 SA11 SA12 SA13 SA14 SA15 SA16 SA17 SA18 SA19 SA20 SA21 SA22 SA23 SA24 SA25 SA26 SA27 SA28 SA29 SA30 SA31 SA32 SA33 SA34 SA35 SA36 SA37 SA38 SA39 SA40 SA41 SA42 SA43 SA44 SA45 SA46 SA47 SA48 SA49 SA50 SA51 SA52 SA53 Sector Address A20-A12 000000000 000000001 000000010 000000011 000000100 000000101 000000110 000000111 000001xxx 000010xxx 000011xxx 000100xxx 000101xxx 000110xxx 000111xxx 001000xxx 001001xxx 001010xxx 001011xxx 001100xxx 001101xxx 001101xxx 001111xxx 010000xxx 010001xxx 010010xxx 010011xxx 010100xxx 010101xxx 010110xxx 010111xxx 011000xxx 011001xxx 011010xxx 011011xxx 011000xxx 011101xxx 011110xxx 011111xxx 100000xxx 100001xxx 100010xxx 101011xxx 100100xxx 100101xxx 100110xxx 100111xxx 101000xxx 101001xxx 101010xxx 101011xxx 101100xxx 101101xxx 101110xxx
Am29LV320MB Bottom Boot Sector Architecture
Sector Size (Kbytes/Kwords) 8/4 8/4 8/4 8/4 8/4 8/4 8/4 8/4 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 (x8) Address Range 000000h-001FFFh 002000h-003FFFh 004000h-005FFFh 006000h-007FFFh 008000h-009FFFh 00A000h-00BFFFh 00C000h-00DFFFh 00E000h-00FFFFFh 010000h-01FFFFh 020000h-02FFFFh 030000h-03FFFFh 040000h-04FFFFh 050000h-05FFFFh 060000h-06FFFFh 070000h-07FFFFh 080000h-08FFFFh 090000h-09FFFFh 0A0000h-0AFFFFh 0B0000h-0BFFFFh 0C0000h-0CFFFFh 0D0000h-0DFFFFh 0E0000h-0EFFFFh 0F0000h-0FFFFFh 100000h-00FFFFh 110000h-11FFFFh 120000h-12FFFFh 130000h-13FFFFh 140000h-14FFFFh 150000h-15FFFFh 160000h-16FFFFh 170000h-17FFFFh 180000h-18FFFFh 190000h-19FFFFh 1A0000h-1AFFFFh 1B0000h-1BFFFFh 1C0000h-1CFFFFh 1D0000h-1DFFFFh 1E0000h-1EFFFFh 1F0000h-1FFFFFh 200000h-20FFFFh 210000h-21FFFFh 220000h-22FFFFh 230000h-23FFFFh 240000h-24FFFFh 250000h-25FFFFh 260000h-26FFFFh 270000h-27FFFFh 280000h-28FFFFh 290000h-29FFFFh 2A0000h-2AFFFFh 2B0000h-2BFFFFh 2C0000h-2CFFFFh 2D0000h-2DFFFFh 2E0000h-2EFFFFh (x16) Address Range 00000h-00FFFh 01000h-01FFFh 02000h-02FFFh 03000h-03FFFh 04000h-04FFFh 05000h-05FFFh 06000h-06FFFh 07000h-07FFFh 08000h-0FFFFh 10000h-17FFFh 18000h-1FFFFh 20000h-27FFFh 28000h-2FFFFh 30000h-37FFFh 38000h-3FFFFh 40000h-47FFFh 48000h-4FFFFh 50000h-57FFFh 58000h-5FFFFh 60000h-67FFFh 68000h-6FFFFh 70000h-77FFFh 78000h-7FFFFh 80000h-87FFFh 88000h-8FFFFh 90000h-97FFFh 98000h-9FFFFh A0000h-A7FFFh A8000h-AFFFFh B0000h-B7FFFh B8000h-BFFFFh C0000h-C7FFFh C8000h-CFFFFh D0000h-D7FFFh D8000h-DFFFFh E0000h-E7FFFh E8000h-EFFFFh F0000h-F7FFFh F8000h-FFFFFh F9000h-107FFFh 108000h-10FFFFh 110000h-117FFFh 118000h-11FFFFh 120000h-127FFFh 128000h-12FFFFh 130000h-137FFFh 138000h-13FFFFh 140000h-147FFFh 148000h-14FFFFh 150000h-157FFFh 158000h-15FFFFh 160000h-167FFFh 168000h-16FFFFh 170000h-177FFFh
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DATASHEET Table 3.
Sector SA54 SA55 SA56 SA57 SA58 SA59 SA60 SA61 SA62 SA63 SA64 SA65 SA66 SA67 SA68 SA69 SA70
Am29LV320MB Bottom Boot Sector Architecture (Continued)
Sector Size (Kbytes/Kwords) 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 64/32 (x8) Address Range 2F0000h-2FFFFFh 300000h-30FFFFh 310000h-31FFFFh 320000h-32FFFFh 330000h-33FFFFh 340000h-34FFFFh 350000h-35FFFFh 360000h-36FFFFh 370000h-37FFFFh 380000h-38FFFFh 390000h-39FFFFh 3A0000h-3AFFFFh 3B0000h-3BFFFFh 3C0000h-3CFFFFh 3D0000h-3DFFFFh 3E0000h-3EFFFFh 3F0000h-3FFFFFh (x16) Address Range 178000h-17FFFFh 180000h-187FFFh 188000h-18FFFFh 190000h-197FFFh 198000h-19FFFFh 1A0000h-1A7FFFh 1A8000h-1AFFFFh 1B0000h-1B7FFFh 1B8000h-1BFFFFh 1C0000h-1C7FFFh 1C8000h-1CFFFFh 1D0000h-1D7FFFh 1D8000h-1DFFFFh 1E0000h-1E7FFFh 1E8000h-1EFFFFh 1F0000h-1F7FFFh 1F8000h-1FFFFFh
Sector Address A20-A12 101111xxx 110000xxx 110001xxx 110010xxx 110011xxx 100100xxx 110101xxx 110110xxx 110111xxx 111000xxx 111001xxx 111010xxx 111011xxx 111100xxx 111101xxx 111110xxx 111111xxx
Note: The address range is A20:A-1 in byte mode (BYTE# = VIL) or A20:A0 in word mode (BYTE# = VIH)
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DATASHEET
Autoselect Mode
The autoselect mode provides manufacturer and device identification, and sector protection verification, through identifier codes output on DQ7-DQ0. This mode is primarily intended for programming equipment to automatically match a device to be programmed with its corresponding programm ing algorithm. However, the autoselect codes can also be accessed in-system through the command register. When using programming equipment, the autoselect mode requires V ID on address pin A9. Address pins A6, A3, A2, A1, and A0 must be as shown in Table 4.
In addition, when verifying sector protection, the sector address must appear on the appropriate highest order address bits (see Tables 2 and 3). Table 4 shows the remaining address bits that are don't care. When all necessary bits have been set as required, the programming equipment may then read the corresponding identifier code on DQ7-DQ0. To access the autoselect codes in-system, the host system can issue the autoselect command via the command register, as shown in Tables 12 and 13. This method does not require VID. Refer to the Autoselect Command Sequence section for more information.
Table 4.
Description CE# OE# WE#
Autoselect Codes, (High Voltage Method)
A9 A8 to A7 X A6 A5 to A4 X A3 to A2 L L
A21 A14 to to A15 A10 X X
DQ8 to DQ15
A1 A0
BYTE# BYTE# = VIH = VIL
00 22 22 22 X X X X X X
DQ7 to DQ0
Manufacturer ID: AMD Device ID Cycle 1 Cycle 2 Cycle 3
L
L
H
VID
L
L L H H H
L H L H L
01h 7Eh 1Ah 00 (bottom boot) 01h (top boot) 01h (protected), 00h (unprotected) 98h (factory locked), 18h (not factory locked)
L
L
H
X
X
VID
X
L
X
H H
Sector Protection Verification SecSi Sector Indicator Bit (DQ7), WP# protects top two address sector SecSi Sector Indicator Bit (DQ7), WP# protects bottom two address sector
L
L
H
SA
X
VID
X
L
X
L
L
L
H
X
X
VID
X
L
X
L
H
H
X
X
L
L
H
X
X
VID
X
L
X
L
H
H
X
X
88h (factory locked), 08h (not factory locked)
Legend: L = Logic Low = VIL, H = Logic High = VIH, SA = Sector Address, X = Don't care.
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DATASHEET
Sector Group Protection and Unprotection
The hardware sector group protection feature disables both program and erase operations in any sector group. In this device, a sector group consists of four adjacent sectors that are protected or unprotected at the same time (see Tables 5 and 6). The hardware sector group unprotection feature re-enables both program and erase operations in previously protected sector groups. Sector group protection/unprotection can be implemented via two methods. Sector protection/unprotection requires VID on the RESET# pin only, and can be implemented either in-system or via programming equipment. Figure 2 shows the algorithms and Figure 24 shows the timing diagram. This method uses standard microprocessor bus cycle timing. For sector group unprotect, all unprotected sector groups must first be protected prior to the first sector group unprotect write cycle. The device is shipped with all sector groups unprotected. AMD offers the option of programming and protecting sector groups at its factory prior to shipping the device through AMD's ExpressFlashTM Service. Contact an AMD representative for details. It is possible to determine whether a sector group is protected or unprotected. See the Autoselect Mode section for details. Table 5. Am29LV320MT Top Boot Sector Protection
A20-A12 0000XXXXXh 0001XXXXXh 0010XXXXXh 0011XXXXXh 0100XXXXXh 0101XXXXXh 0110XXXXXh 0111XXXXXh 1000XXXXXh, 1001XXXXXh 1010XXXXXh 1011XXXXXh 1100XXXXXh 1101XXXXXh 1110XXXXXh 111100XXXh 111101XXXh 111110XXXh 111111000h 111111001h 111111010h Sector/ Sector Block Size 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 192 (3x64) Kbytes 8 Kbytes 8 Kbytes 8 Kbytes
Sector SA66 SA67 SA68 SA69 SA70
A20-A12 111111011h 111111100h 111111101h 111111110h 111111111h
Sector/ Sector Block Size 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes
Table 6.
Am29LV320MB Bottom Boot Sector Protection
A20-A12 000000000h 000000001h 000000010h 000000011h 000000100h 000000101h 000000110h 000000111h 000001XXXh, 000010XXXh, 000011XXXh, 0001XXXXXh 0010XXXXXh 0011XXXXXh 0100XXXXXh 0101XXXXXh 0110XXXXXh 0111XXXXXh 1000XXXXXh 1001XXXXXh 1010XXXXXh 1011XXXXXh 1100XXXXXh 1101XXXXXh 1110XXXXXh 1111XXXXXh Sector/ Sector Block Size 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 8 Kbytes 192 (3x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes 256 (4x64) Kbytes
Sector SA0 SA1 SA2 SA3 SA4 SA5 SA6 SA7 SA8-SA10 SA11-SA14 SA15-SA18 SA19-SA22 SA23-SA26 SA27-SA30 SA31-SA34 SA35-SA38 SA39-SA42 SA43-SA46 SA47-SA50 SA51-SA54 SA55-SA58 SA59-SA62 SA63-SA66 SA67-SA70
Sector SA0-SA3 SA4-SA7 SA8-SA11 SA12-SA15 SA16-SA19 SA20-SA23 SA24-SA27 SA28-SA31 SA32-SA35 SA36-SA39 SA40-SA43 SA44-SA47 SA48-SA51 SA52-SA55 SA56-SA59 SA60-SA62 SA63 SA64 SA65
Write Protect (WP#)
The Write Protect function provides a hardware method of protecting the top two or bottom two sectors without using V ID. WP# is one of two functions provided by the WP#/ACC input. If the system asserts VIL on the WP#/ACC pin, the device disables program and erase functions in the first or last sector independently of whether those sectors were protected or unprotected using the method described in "Sector Group Protection and Unprotection". Note that if WP#/ACC is at VIL when the device is in the standby mode, the maximum input load current is increased. See the table in "DC Characteristics". 17
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Am29LV320MT/B
DATASHEET If the system asserts VIH on the WP#/ACC pin, the device reverts to whether the top or bottom two sectors were previously set to be protected or unprotected using the method described in "Sector Group Protection and Unprotection". Note: No external pullup is necessary since the WP#/ACC pin has internal pullup to VCC
START
RESET# = VID (Note 1) Perform Erase or Program Operations
Temporary Sector Group Unprotect
(Note: In this device, a sector group consists of four adjacent sectors that are protected or unprotected at the same time (see Table 6).
This feature allows temporary unprotection of previously protected sector groups to change data in-system. The Sector Group Unprotect mode is activated by setting the RESET# pin to VID. During this mode, formerly protected sector groups can be programmed or erased by selecting the sector group addresses. Once V ID is removed from the RESET# pin, all the previously protected sector groups are protected again. Figure 1 shows the algorithm, and Figure 23 shows the timing diagrams, for this feature.
RESET# = VIH
Temporary Sector Group Unprotect Completed (Note 2)
Notes: 1. All protected sector groups unprotected (If WP# = VIL, the first or last sector will remain protected). 2. All previously protected sector groups are protected once again.
Figure 1. Temporary Sector Group Unprotect Operation
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DATASHEET
START PLSCNT = 1 RESET# = VID Wait 1 s Protect all sector groups: The indicated portion of the sector group protect algorithm must be performed for all unprotected sector groups prior to issuing the first sector group unprotect address
START PLSCNT = 1 RESET# = VID Wait 1 s
Temporary Sector Group Unprotect Mode
No
First Write Cycle = 60h?
First Write Cycle = 60h?
No
Temporary Sector Group Unprotect Mode
Yes Set up sector group address No
Yes All sector groups protected? Yes Set up first sector group address Sector Group Unprotect: Write 60h to sector group address with A6-A0 = 1xx0010 Reset PLSCNT = 1
Sector Group Protect: Write 60h to sector group address with A6-A0 = 0xx0010
Wait 150 s
Increment PLSCNT
Verify Sector Group Protect: Write 40h to sector group address with A6-A0 = 0xx0010
Wait 15 ms
Read from sector group address with A6-A0 = 0xx0010 No No PLSCNT = 25? Data = 01h?
Increment PLSCNT
Verify Sector Group Unprotect: Write 40h to sector group address with A6-A0 = 1xx0010
Yes Yes Protect another sector group? No Remove VID from RESET# Yes
Read from sector group address with A6-A0 = 1xx0010 No Set up next sector group address Data = 00h?
No
PLSCNT = 1000? Yes
Device failed
Yes
Device failed Write reset command
Last sector group verified? Yes Remove VID from RESET#
No
Sector Group Protect Algorithm
Sector Group Protect complete
Sector Group Unprotect Algorithm
Write reset command
Sector Group Unprotect complete
Figure 2.
In-System Sector Group Protect/Unprotect Algorithms
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DATASHEET
SecSi (Secured Silicon) Sector Flash Memory Region
The SecSi (Secured Silicon) Sector feature provides a Flash memory region that enables permanent part identification through an Electronic Serial Number (ESN). The SecSi Sector is 256 bytes in length, and uses a SecSi Sector Indicator Bit (DQ7) to indicate whether or not the SecSi Sector is locked when shipped from the factory. This bit is permanently set at the factory and cannot be changed, which prevents cloning of a factory locked part. This ensures the security of the ESN once the product is shipped to the field. AMD offers the device with the SecSi Sector either customer lockable (standard shipping option) or factory locked (contact an AMD sales representative for ordering information). The customer-lockable version is shipped with the SecSi Sector unprotected, allowing customers to program the sector after receiving the device. The customer-lockable version also has the SecSi Sector Indicator Bit permanently set to a "0." The factory-locked version is always protected when shipped from the factory, and has the SecSi (Secured Silicon) Sector Indicator Bit permanently set to a "1." Thus, the SecSi Sector Indicator Bit prevents customer-lockable devices from being used to replace devices that are factory locked. Note that the ACC function and unlock bypass modes are not available when the SecSi Sector is enabled. The SecSi sector address space in this device is allocated as follows: Table 7.
SecSi Sector Address Range 000000h-000007h 000008h-00007Fh
Customer Lockable: SecSi Sector NOT Programmed or Protected At the Factory Unless otherwise specified, the device is shipped such that the customer may program and protect the 256-byte SecSi sector. The system may program the SecSi Sector using the write-buffer, accelerated and/or unlock bypass methods, in addition to the standard programming command sequence. See Command Definitions. Programming and protecting the SecSi Sector must be used with caution since, once protected, there is no procedure available for unprotecting the SecSi Sector area and none of the bits in the SecSi Sector memory space can be modified in any way. The SecSi Sector area can be protected using one of the following procedures: Write the three-cycle Enter SecSi Sector Region command sequence, and then follow the in-system sector protect algorithm as shown in Figure 2, except that RESET# may be at either VIH or VID. This allows in-system protection of the SecSi Sector without raising any device pin to a high voltage. Note that this method is only applicable to the SecSi Sector. To verify the protect/unprotect status of the SecSi Sector, follow the algorithm shown in Figure 3. Once the SecSi Sector is programmed, locked and verified, the system must write the Exit SecSi Sector Region command sequence to return to reading and writing within the remainder of the array. Factory Locked: SecSi Sector Programmed and Protected At the Factory In devices with an ESN, the SecSi Sector is protected when the device is shipped from the factory. The SecSi Sector cannot be modified in any way. An ESN Factory Locked device has an 16-byte random ESN at addresses 000000h-000007h. Please contact your local AMD sales representative for details on ordering ESN Factory Locked devices. Customers may opt to have their code programmed by AMD through the AMD ExpressFlash service (Express Flash Factory Locked). The devices are then shipped from AMD's factory with the SecSi Sector permanently locked. Contact an AMD representative for details on using AMD's ExpressFlash service.
SecSi Sector Contents
Customer Lockable ESN Factory Locked ESN Unavailable ExpressFlash Factory Locked ESN or determined by customer Determined by customer
Determined by customer
The system accesses the SecSi Sector through a command sequence (see "Enter SecSi Sector/Exit SecSi Sector Command Sequence"). After the system has written the Enter SecSi Sector command sequence, it may read the SecSi Sector by using the addresses normally occupied by the first sector (SA0). This mode of operation continues until the system issues the Exit SecSi Sector command sequence, or until power is removed from the device. On power-up, or following a hardware reset, the device reverts to sending commands to sector SA0.
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DATASHEET hardware data protection measures prevent accidental erasure or programming, which might otherwise be caused by spurious system level signals during VCC power-up and power-down transitions, or from system noise.
If data = 00h, SecSi Sector is unprotected. If data = 01h, SecSi Sector is protected.
START RESET# = VIH or VID Wait 1 s Write 60h to any address
Low VCC Write Inhibit When VCC is less than V LKO, the device does not accept any write cycles. This protects data during VCC power-up and power-down. The command register and all internal program/erase circuits are disabled, and the device resets to the read mode. Subsequent writes are ignored until VCC is greater than VLKO. The system must provide the proper signals to the control pins to prevent unintentional writes when V CC is greater than VLKO. Write Pulse "Glitch" Protection Noise pulses of less than 5 ns (typical) on OE#, CE# or WE# do not initiate a write cycle. Logical Inhibit Write cycles are inhibited by holding any one of OE# = VIL, CE# = VIH or WE# = V IH. To initiate a write cycle, CE# and WE# must be a logical zero while OE# is a logical one. Power-Up Write Inhibit If WE# = CE# = VIL and OE# = VIH during power up, the device does not accept commands on the rising edge of WE#. The internal state machine is automatically reset to the read mode on power-up.
Remove VIH or VID from RESET#
Write 40h to SecSi Sector address with A6 = 0, A1 = 1, A0 = 0 Read from SecSi Sector address with A6 = 0, A1 = 1, A0 = 0
Write reset command SecSi Sector Protect Verify complete
Figure 3.
SecSi Sector Protect Verify
Hardware Data Protection
The command sequence requirement of unlock cycles for programming or erasing provides data protection against inadvertent writes (refer to Tables 12 and 13 for command definitions). In addition, the following
COMMON FLASH MEMORY INTERFACE (CFI)
The Common Flash Interface (CFI) specification outlines device and host system software interrogation handshake, which allows specific vendor-specified software algorithms to be used for entire families of devices. Software support can then be device-independent, JEDEC ID-independent, and forward- and backward-compatible for the specified flash device families. Flash vendors can standardize their existing interfaces for long-term compatibility. This device enters the CFI Query mode when the system writes the CFI Query command, 98h, to address 55h, any time the device is ready to read array data. The system can read CFI information at the addresses given in Tables 8-11. To terminate reading CFI data, the system must write the reset command. The system can also write the CFI query command when the device is in the autoselect mode. The device enters the CFI query mode, and the system can read CFI data at the addresses given in Tables 8-11. The system must write the reset command to return the device to reading array data. For further information, please refer to the CFI Specification and CFI Publication 100, available via the World Wide Web at http://www.amd.com/flash/cfi. Alternatively, contact an AMD representative for copies of these documents.
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21
DATASHEET Table 8.
Addresses (x16) 10h 11h 12h 13h 14h 15h 16h 17h 18h 19h 1Ah Addresses (x8) 20h 22h 24h 26h 28h 2Ah 2Ch 2Eh 30h 32h 34h Data 0051h 0052h 0059h 0002h 0000h 0040h 0000h 0000h 0000h 0000h 0000h
CFI Query Identification String
Description Query Unique ASCII string "QRY"
Primary OEM Command Set Address for Primary Extended Table Alternate OEM Command Set (00h = none exists) Address for Alternate OEM Extended Table (00h = none exists)
Table 9.
Addresses (x16) 1Bh 1Ch 1Dh 1Eh 1Fh 20h 21h 22h 23h 24h 25h 26h Addresses (x8) 36h 38h 3Ah 3Ch 3Eh 40h 42h 44h 46h 48h 4Ah 4Ch Data 0027h 0036h 0000h 0000h 0007h 0007h 000Ah 0000h 0001h 0005h 0004h 0000h
System Interface String
Description
VCC Min. (write/erase) D7-D4: volt, D3-D0: 100 millivolt VCC Max. (write/erase) D7-D4: volt, D3-D0: 100 millivolt VPP Min. voltage (00h = no VPP pin present) VPP Max. voltage (00h = no VPP pin present) Typical timeout per single byte/word write 2N s Typical timeout for Min. size buffer write 2N s (00h = not supported) Typical timeout per individual block erase 2N ms Typical timeout for full chip erase 2N ms (00h = not supported) Max. timeout for byte/word write 2N times typical Max. timeout for buffer write 2N times typical Max. timeout per individual block erase 2N times typical Max. timeout for full chip erase 2N times typical (00h = not supported)
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DATASHEET Table 10.
Addresses (x16) 27h 28h 29h 2Ah 2Bh 2Ch 2Dh 2Eh 2Fh 30h 31h 32h 33h 34h 35h 36h 37h 38h 39h 3Ah 3Bh 3Ch Addresses (x8) 4Eh 50h 52h 54h 56h 58h 5Ah 5Ch 5Eh 60h 62h 64h 66h 68h 6Ah 6Ch 6Eh 70h 72h 74h 76h 78h Data 0016h 0002h 0000h 0005h 0000h 0002h 007Fh 0000h 0020h 0000h 003Eh 0000h 0000h 0001h 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h Device Size = 2 byte Flash Device Interface description (refer to CFI publication 100) Max. number of byte in multi-byte write = 2N (00h = not supported) Number of Erase Block Regions within device (01h = uniform device, 02h = boot device) Erase Block Region 1 Information (refer to the CFI specification or CFI publication 100)
N
Device Geometry Definition
Description
Erase Block Region 2 Information (refer to CFI publication 100)
Erase Block Region 3 Information (refer to CFI publication 100)
Erase Block Region 4 Information (refer to CFI publication 100)
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DATASHEET Table 11.
Addresses (x16) 40h 41h 42h 43h 44h Addresses (x8) 80h 82h 84h 86h 88h
Primary Vendor-Specific Extended Query
Data 0050h 0052h 0049h 0031h 0033h Query-unique ASCII string "PRI" Major version number, ASCII Minor version number, ASCII
Description
45h
8Ah
0008h
Address Sensitive Unlock (Bits 1-0) 0 = Required, 1 = Not Required Process Technology (Bits 7-2) 0010b = 0.23 m MirrorBit
46h 47h 48h 49h 4Ah 4Bh 4Ch
8Ch 8Eh 90h 92h 94h 96h 98h
0002h 0001h 0001h 0004h 0000h 0000h 0001h
Erase Suspend 0 = Not Supported, 1 = To Read Only, 2 = To Read & Write Sector Protect 0 = Not Supported, X = Number of sectors in per group Sector Temporary Unprotect 00 = Not Supported, 01 = Supported Sector Protect/Unprotect scheme 04 = 29LV800 mode Simultaneous Operation 00 = Not Supported, X = Number of Sectors in Bank Burst Mode Type 00 = Not Supported, 01 = Supported Page Mode Type 00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page ACC (Acceleration) Supply Minimum 00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV ACC (Acceleration) Supply Maximum 00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV Top/Bottom Boot Sector Flag
4Dh
9Ah
00B5h
4Eh
9Ch
00C5h
4Fh
9Eh
0002h/ 0003h
00h = Uniform Device without WP# protect, 02h = Bottom Boot Device, 03h = Top Boot Device, 04h = Uniform sectors bottom WP# protect, 05h = Uniform sectors top WP# protect Program Suspend 00h = Not Supported, 01h = Supported
50h
A0h
0001h
COMMAND DEFINITIONS
Writing specific address and data commands or sequences into the command register initiates device operations. Tables 12 and 13 define the valid register command sequences. Writing incorrect address and data values or writing them in the improper sequence may place the device in an unknown state. A reset command is then required to return the device to reading array data. All addresses are latched on the falling edge of WE# or CE#, whichever happens later. All data is latched on the rising edge of WE# or CE#, whichever happens first. Refer to the AC Characteristics section for timing diagrams.
Reading Array Data
The device is automatically set to reading array data after device power-up. No commands are required to retrieve data. The device is ready to read array data after completing an Embedded Program or Embedded Erase algorithm. After the device accepts an Erase Suspend command, the device enters the erase-suspend-read mode, after
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DATASHEET which the system can read data from any non-erase-suspended sector. After completing a programming operation in the Erase Suspend mode, the system may once again read array data with the same exception. See the Erase Suspend/Erase Resume Commands section for more information. The system must issue the reset command to return the device to the read (or erase-suspend-read) mode if DQ5 goes high during an active program or erase operation, or if the device is in the autoselect mode. See the next section, Reset Command, for more information. See also Requirements for Reading Array Data in the Device Bus Operations section for more information. The Read-Only Operations table provides the read parameters, and Figure 14 shows the timing diagram.
Autoselect Command Sequence
The autoselect command sequence allows the host system to read several identifier codes at specific addresses:
Identifier Code Manufacturer ID Device ID, Cycle 1 Device ID, Cycle 2 Device ID, Cycle 3 SecSi Sector Factory Protect Sector Protect Verify A7:A0 (x16) 00h 01h 0Eh 0Fh 03h (SA)02h A6:A-1 (x8) 00h 02h 1Ch 1Eh 06h (SA)04h
Note: The device ID is read over three cycles. SA = Sector Address
Reset Command
Writing the reset command resets the device to the read or erase-suspend-read mode. Address bits are don't cares for this command. The reset command may be written between the sequence cycles in an erase command sequence before erasing begins. This resets the device to the read mode. Once erasure begins, however, the device ignores reset commands until the operation is complete. The reset command may be written between the sequence cycles in a program command sequence before programming begins. This resets the device to the read mode. If the program command sequence is written while the device is in the Erase Suspend mode, writing the reset command returns the device to the erase-suspend-read mode. Once programming begins, however, the device ignores reset commands until the operation is complete. The reset command may be written between the sequence cycles in an autoselect command sequence. Once in the autoselect mode, the reset command must be written to return to the read mode. If the device entered the autoselect mode while in the Erase Suspend mode, writing the reset command returns the device to the erase-suspend-read mode. If DQ5 goes high during a program or erase operation, writing the reset command returns the device to the read mode (or erase-suspend-read mode if the device was in Erase Suspend). Note that if DQ1 goes high during a Write Buffer Programming operation, the system must write the Write-to-Buffer-Abort Reset command sequence to reset the device for the next operation.
Tables 12 and 13 show the address and data requirements. This method is an alternative to that shown in Table 4, which is intended for PROM programmers and requires VID on address pin A9. The autoselect command sequence may be written to an address that is either in the read or erase-suspend-read mode. The autoselect command may not be written while the device is actively programming or erasing. The autoselect command sequence is initiated by first writing two unlock cycles. This is followed by a third write cycle that contains the autoselect command. The device then enters the autoselect mode. The system may read at any address any number of times without initiating another autoselect command sequence. The system must write the reset command to return to the read mode (or erase-suspend-read mode if the device was previously in Erase Suspend).
Enter SecSi Sector/Exit SecSi Sector Command Sequence
The SecSi Sector region provides a secured data area containing an 8-word/16-byte random Electronic Serial Number (ESN). The system can access the SecSi Sector region by issuing the three-cycle Enter SecSi Sector command sequence. The device continues to access the SecSi Sector region until the system issues the four-cycle Exit SecSi Sector command sequence. The Exit SecSi Sector command sequence returns the device to normal operation. Tables 12 and 13 show the address and data requirements for both command sequences. See also "SecSi (Secured Silicon) Sector Flash Memory Region" for further information. Note that the ACC function and unlock bypass modes are not available when the SecSi Sector is enabled.
Word/Byte Program Command Sequence
Programming is a four-bus-cycle operation. The program command sequence is initiated by writing two unlock write cycles, followed by the program set-up command. The program address and data are written
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DATASHEET next, which in turn initiate the Embedded Program algorithm. The system is not required to provide further controls or timings. The device automatically provides internally generated program pulses and verifies the programmed cell margin. Tables 12 and 13 show the address and data requirements for the word program command sequence. When the Embedded Program algorithm is complete, the device then returns to the read mode and addresses are no longer latched. The system can determine the status of the program operation by using DQ7 or DQ6. Refer to the Write Operation Status section for information on these status bits. Any commands written to the device during the Embedded Program Algorithm are ignored. Note that a hardware reset immediately terminates the program operation. Note that the SecSi Sector, autoselect, and CFI functions are unavailable when a program operation is in progress. The program command sequence should be reinitiated once the device has returned to the read mode, to ensure data integrity. Programming is allowed in any sequence and across sector boundaries. A bit cannot be programmed from "0" back to a "1." Attempting to do so may cause the device to set DQ5 = 1, or cause the DQ7 and DQ6 status bits to indicate the operation was successful. However, a succeeding read will show that the data is still "0." Only erase operations can convert a "0" to a "1." Unlock Bypass Command Sequence The unlock bypass feature allows the system to program words to the device faster than using the standard program command sequence. The unlock bypass command sequence is initiated by first writing two unlock cycles. This is followed by a third write cycle containing the unlock bypass command, 20h. The device then enters the unlock bypass mode. A two-cycle unlock bypass program command sequence is all that is required to program in this mode. The first cycle in this sequence contains the unlock bypass program command, A0h; the second cycle contains the program address and data. Additional data is programmed in the same manner. This mode dispenses with the initial two unlock cycles required in the standard program command sequence, resulting in faster total programming time. Tables 12 and 13 show the requirements for the command sequence. During the unlock bypass mode, only the Unlock Bypass Program and Unlock Bypass Reset commands are valid. To exit the unlock bypass mode, the system must issue the two-cycle unlock bypass reset command sequence. The first cycle must contain the data 90h. The second cycle must contain the data 00h. The device then returns to the read mode. Write Buffer Programming Write Buffer Programming allows the system write to a maximum of 16 words/32 bytes in one programming operation. This results in faster effective programming time than the standard programming algorithms. The Write Buffer Programming command sequence is initiated by first writing two unlock cycles. This is followed by a third write cycle containing the Write Buffer Load command written at the Sector Address in which programming will occur. The fourth cycle writes the sector address and the number of word locations, minus one, to be programmed. For example, if the system will program 6 unique address locations, then 05h should be written to the device. This tells the device how many write buffer addresses will be loaded with data and therefore when to expect the Program Buffer to Flash command. The number of locations to program cannot exceed the size of the write buffer or the operation will abort. The fifth cycle writes the first address location and data to be programmed. The write-buffer-page is selected by address bits A MAX-A 4 . All subsequent address/data pairs must fall within the selected-write-buffer-page. The system then writes the remaining address/data pairs into the write buffer. Write buffer locations may be loaded in any order. The write-buffer-page address must be the same for all address/data pairs loaded into the write buffer. (This means Write Buffer Programming cannot be performed across multiple write-buffer pages. This also means that Write Buffer Programming cannot be performed across multiple sectors. If the system attempts to load programming data outside of the selected write-buffer page, the operation will abort. Note that if a Write Buffer address location is loaded multiple times, the address/data pair counter will be decremented for every data load operation. The host s y s t e m m u s t th e r e f o r e a c c o u n t fo r l o a d i n g a write-buffer location more than once. The counter decrements for each data load operation, not for each unique write-buffer-address location. Note also that if an address location is loaded more than once into the buffer, the final data loaded for that address will be programmed. Once the specified number of write buffer locations have been loaded, the system must then write the Program Buffer to Flash command at the sector address. Any other address and data combination aborts the Write Buffer Programming operation. The device then begins programming. Data polling should be used while monitoring the last address location loaded into the write buffer. DQ7, DQ6, DQ5, and DQ1 should be monitored to determine the device status during Write Buffer Programming.
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DATASHEET The write-buffer programming operation can be suspended using the standard program suspend/resume commands. Upon successful completion of the Write Buffer Programming operation, the device is ready to execute the next command. The Write Buffer Programming Sequence can be aborted in the following ways: Load a value that is greater than the page buffer size during the Number of Locations to Program step. Write to an address in a sector different than the one specified during the Write-Buffer-Load command. Write an Address/Data pair to a different write-buffer-page than the one selected by the Starting Address during the write buffer data loading stage of the operation. Write data other than the Confirm Command after the specified number of data load cycles. The abort condition is indicated by DQ1 = 1, DQ7 = DATA# (for the last address location loaded), DQ6 = toggle, and DQ5=0. A Write-to-Buffer-Abort Reset command sequence must be written to reset the device for the next operation. Note that the full 3-cycle Write-to-Buffer-Abort Reset command sequence is required when using Write-Buffer-Programming features in Unlock Bypass mode. Accelerated Program The device offers accelerated program operations through the WP#/ACC pin. When the system asserts VHH on the WP#/ACC pin, the device automatically enters the Unlock Bypass mode. The system may then write the two-cycle Unlock Bypass program command sequence. The device uses the higher voltage on the WP#/ACC pin to accelerate the operation. Note that the WP#/ACC pin must not be at V HH for operations other than accelerated programming, or device damage may result. In addition, no external pullup is necessary since the WP#/ACC pin has internal pullup to VCC. Figure 5 illustrates the algorithm for the program operation. Refer to the Erase and Program Operations table in the AC Characteristics section for parameters, and Figure 17 for timing diagrams.
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DATASHEET
Write "Write to Buffer" command and Sector Address
Write number of addresses to program minus 1(WC) and Sector Address
Part of "Write to Buffer" Command Sequence
Write first address/data
Yes
WC = 0 ? No Abort Write to Buffer Operation? No Yes Write to buffer ABORTED. Must write "Write-to-buffer Abort Reset" command sequence to return to read mode. Write to a different sector address
(Note 1)
Write next address/data pair
WC = WC - 1
Write program buffer to flash sector address
Notes:
1. When Sector Address is specified, any address in the selected sector is acceptable. However, when loading Write-Buffer address locations with data, all addresses must fall within the selected Write-Buffer Page.
Read DQ7 - DQ0 at Last Loaded Address
2. 3.
DQ7 may change simultaneously with DQ5. Therefore, DQ7 should be verified. If this flowchart location was reached because DQ5= "1", then the device FAILED. If this flowchart location was reached because DQ1= "1", then the Write to Buffer operation was ABORTED. In either case, the proper reset command must be written before the device can begin another operation. If DQ1=1, write the Write-Buffer-Programming-Abort-Reset command. if DQ5=1, write the Reset command.
See Tables 12 and 13 for command sequences required for write buffer programming.
DQ7 = Data? No No DQ1 = 1? Yes DQ5 = 1? Yes Read DQ7 - DQ0 with address = Last Loaded Address No
Yes
4.
(Note 2)
DQ7 = Data? No
Yes
(Note 3)
FAIL or ABORT
PASS
Figure 4.
Write Buffer Programming Operation
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DATASHEET
Program Suspend/Program Resume Command Sequence
START
Write Program Command Sequence
Embedded Program algorithm in progress
Data Poll from System
The Program Suspend command allows the system to interrupt a programming operation or a Write to Buffer programming operation so that data can be read from any non-suspended sector. When the Program Suspend command is written during a programming process, the device halts the program operation within 15 s maximum (5 s typical) and updates the status bits. Addresses are not required when writing the Program Suspend command. After the programming operation has been suspended, the system can read array data from any non-suspended sector. The Program Suspend command may also be issued during a programming operation while an erase is suspended. In this case, data may be read from any addresses not in Erase Suspend or Program Suspend. If a read is needed from the SecSi Sector area (One-time Program area), then user must use the proper command sequences to enter and exit this region. The system may also write the autoselect command sequence when the device is in the Program Suspend mode. The system can read as many autoselect codes as required. When the device exits the autoselect mode, the device reverts to the Program Suspend mode, and is ready for another valid operation. See Autoselect Command Sequence for more information. After the Program Resume command is written, the device reverts to programming. The system can determine the status of the program operation using the DQ7 or DQ6 status bits, just as in the standard program operation. See Write Operation Status for more information. The system must write the Program Resume command (address bits are don't care) to exit the Program Suspend mode and continue the programming operation. Further writes of the Resume command are ignored. Another Program Suspend command can be written after the device has resume programming.
Verify Data?
No
Yes No
Increment Address
Last Address?
Yes Programming Completed
Note: See Tables 12 and 13 for program command sequence.
Figure 5.
Program Operation
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DATASHEET When the Embedded Erase algorithm is complete, the device returns to the read mode and addresses are no longer latched. The system can determine the status of the erase operation by using DQ7, DQ6, or DQ2. Refer to the Write Operation Status section for information on these status bits. Any commands written during the chip erase operation are ignored. However, note that a hardware reset immediately terminates the erase operation. If that occurs, the chip erase command sequence should be reinitiated once the device has returned to reading array data, to ensure data integrity. Figure 7 illustrates the algorithm for the erase operation. Refer to the Erase and Program Operations tables in the AC Characteristics section for parameters, and Figure 19 section for timing diagrams.
Program Operation or Write-to-Buffer Sequence in Progress
Write address/data XXXh/B0h
Write Program Suspend Command Sequence Command is also valid for Erase-suspended-program operations
Wait 15 s
Autoselect operations are also allowed Read data as required Data cannot be read from erase- or program-suspended sectors
No
Done reading? Yes Write address/data XXXh/30h Write Program Resume Command Sequence
Sector Erase Command Sequence
Sector erase is a six bus cycle operation. The sector erase command sequence is initiated by writing two unlock cycles, followed by a set-up command. Two additional unlock cycles are written, and are then followed by the address of the sector to be erased, and the sector erase command. Tables 12 and 13 shows the address and data requirements for the sector erase command sequence. Note that the SecSi Sector, autoselect, and CFI functions are unavailable when a program operation is in progress. The device does not require the system to preprogram prior to erase. The Embedded Erase algorithm automatically programs and verifies the entire memory for an all zero data pattern prior to electrical erase. The system is not required to provide any controls or timings during these operations. After the command sequence is written, a sector erase time-out of 50 s occurs. During the time-out period, additional sector addresses and sector erase commands may be written. Loading the sector erase buffer may be done in any sequence, and the number of sectors may be from one sector to all sectors. The time between these additional cycles must be less than 50 s, otherwise erasure may begin. Any sector erase address and command following the exceeded time-out may or may not be accepted. It is recommended that processor interrupts be disabled during this time to ensure all commands are accepted. The interrupts can be re-enabled after the last Sector Erase command is written. Any command other than S e ct o r E ra se o r E ra s e S u s p en d d u r i n g th e time-out period resets the device to the read mode. The system must rewrite the command sequence and any additional addresses and commands. The system can monitor DQ3 to determine if the sector erase timer has timed out (See the section on DQ3: Sector Erase Timer.). The time-out begins from the ris-
Device reverts to operation prior to Program Suspend
Figure 6.
Program Suspend/Program Resume
Chip Erase Command Sequence
Chip erase is a six bus cycle operation. The chip erase command sequence is initiated by writing two unlock cycles, followed by a set-up command. Two additional unlock write cycles are then followed by the chip erase command, which in turn invokes the Embedded Erase algorithm. The device does not require the system to preprogram prior to erase. The Embedded Erase algorithm automatically preprograms and verifies the entire memory for an all zero data pattern prior to electrical erase. The system is not required to provide any controls or timings during these operations. Tables 12 and 13 shows the address and data requirements for the chip erase command sequence. Note that the SecSi Sector, autoselect, and CFI functions are unavailable when a program operation is in progress.
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DATASHEET ing edge of the final WE# pulse in the command sequence. When the Embedded Erase algorithm is complete, the device returns to reading array data and addresses are no longer latched. The system can determine the status of the erase operation by reading DQ7, DQ6, or DQ2 in the erasing sector. Refer to the Write Operation Status section for information on these status bits. Once the sector erase operation has begun, only the Erase Suspend command is valid. All other commands are ignored. However, note that a hardware reset immediately terminates the erase operation. If that occurs, the sector erase command sequence should be reinitiated once the device has returned to reading array data, to ensure data integrity. Figure 7 illustrates the algorithm for the erase operation. Refer to the Erase and Program Operations tables in the AC Characteristics section for parameters, and Figure 19 section for timing diagrams.
Erase Suspend/Erase Resume Commands
The Erase Suspend command, B0h, allows the system to interrupt a sector erase operation and then read data from, or program data to, any sector not selected for erasure. This command is valid only during the sector erase operation, including the 50 s time-out period during the sector erase command sequence. The Erase Suspend command is ignored if written during the chip erase operation or Embedded Program algorithm. When the Erase Suspend command is written during the sector erase operation, the device requires a typical of 5 s (maximum of 20 s) to suspend the erase operation. However, when the Erase Suspend command is written during the sector erase time-out, the device immediately terminates the time-out period and suspends the erase operation. After the erase operation has been suspended, the device enters the erase-suspend-read mode. The system can read data from or program data to any sector not selected for erasure. (The device "erase suspends" all sectors selected for erasure.) Reading at any address within erase-suspended sectors produces status information on DQ7-DQ0. The system can use DQ7, or DQ6 and DQ2 together, to determine if a sector is actively erasing or is erase-suspended. Refer to the Write Operation Status section for information on these status bits. After an erase-suspended program operation is complete, the device returns to the erase-suspend-read mode. The system can determine the status of the program operation using the DQ7 or DQ6 status bits, just as in the standard word program operation. Refer to the Write Operation Status section for more information. In the erase-suspend-read mode, the system can also issue the autoselect command sequence. Refer to the Autoselect Mode and Autoselect Command Sequence sections for details. To resume the sector erase operation, the system must write the Erase Resume command. The address of the erase-suspended sector is required when writing this command. Further writes of the Resume command are ignored. Another Erase Suspend command can be written after the chip has resumed erasing.
START
Write Erase Command Sequence (Notes 1, 2)
Data Poll to Erasing Bank from System
Embedded Erase algorithm in progress
No
Data = FFh?
Yes Erasure Completed
Notes: 1. See Tables 12 and 13 for erase command sequence. 2. See the section on DQ3 for information on the sector erase timer.
Figure 7.
Erase Operation
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DATASHEET
Command Definitions
Table 12.
Cycles Command Sequence (Notes) Read (Note 5) Reset (Note 6) Autoselect (Note 7) Manufacturer ID Device ID (Note 8) SecSi Sector Factory Protect (Note 9) Sector Group Protect Verify (Note 10)
Command Definitions (x16 Mode, BYTE# = VIH)
Bus Cycles (Notes 1-4) First Second Addr Data Third Addr Data Fourth Addr Data Fifth Addr Data Sixth Addr Data
Addr RA XXX 555 555 555 555 555 555 555 555 SA 555 555 XXX XXX 555 555 BA BA 55
Data RD F0 AA AA AA AA AA AA AA AA 29 AA AA A0 90 AA AA B0 30 98
1 1 4 6 4 4 3 4 4 6 1 3 3 2 2 6 6 1 1 1
2AA 2AA 2AA 2AA 2AA 2AA 2AA 2AA 2AA 2AA PA XXX 2AA 2AA
55 55 55 55 55 55 55 55 55 55 PD 00 55 55
555 555 555 555 555 555 555 SA 555 555
90 90 90 90 88 90 A0 25 F0 20
X00 X01 X03 (SA)X02
0001 227E (Note 9) 00/01 X0E 221A X0F 2200/ 2201
Enter SecSi Sector Region Exit SecSi Sector Region Program Write to Buffer (Note 11) Program Buffer to Flash Write to Buffer Abort Reset (Note 12) Unlock Bypass Unlock Bypass Program (Note 13) Unlock Bypass Reset (Note 14) Chip Erase Sector Erase Program/Erase Suspend (Note 15) Program/Erase Resume (Note 16) CFI Query (Note 17)
XXX PA SA
00 PD WC PA PD WBL PD
555 555
80 80
555 555
AA AA
2AA 2AA
55 55
555 SA
10 30
Legend: X = Don't care RA = Read Address of the memory location to be read. RD = Read Data read from location RA during read operation. PA = Program Address . Addresses latch on the falling edge of the WE# or CE# pulse, whichever happens later. PD = Program Data for location PA. Data latches on the rising edge of WE# or CE# pulse, whichever happens first. Notes: 1. See Table 1 for description of bus operations. 2. All values are in hexadecimal. 3. 4. Except for the read cycle and the fourth cycle of the autoselect command sequence, all bus cycles are write cycles. During unlock cycles, when lower address bits are 555 or 2AAh as shown in table, address bits higher than A11 (except where BA is required) and data bits higher than DQ7 are don't cares. No unlock or command cycles required when device is in read mode. The Reset command is required to return to the read mode (or to the erase-suspend-read mode if previously in Erase Suspend) when the device is in the autoselect mode, or if DQ5 goes high while the device is providing status information. The fourth cycle of the autoselect command sequence is a read cycle. Data bits DQ15-DQ8 are don't care. See the Autoselect Command Sequence section for more information. The device ID must be read in three cycles. The data is 2201h for top boot and 2200h for bottom boot. If WP# protects the top two address sectors, the data is 98h for factory locked and 18h for not factory locked. If WP# protects the
SA = Sector Address of sector to be verified (in autoselect mode) or erased. Address bits A20-A15 uniquely select any sector. WBL = Write Buffer Location. Address must be within the same write buffer page as PA. WC = Word Count. Number of write buffer locations to load minus 1.
bottom two address sectors, the data is 88h for factory locked and 08h for not factor locked. 10. The data is 00h for an unprotected sector group and 01h for a protected sector group. 11. The total number of cycles in the command sequence is determined by the number of words written to the write buffer. The maximum number of cycles in the command sequence is 21. 12. Command sequence resets device for next command after aborted write-to-buffer operation. 13. The Unlock Bypass command is required prior to the Unlock Bypass Program command. 14. The Unlock Bypass Reset command is required to return to the read mode when the device is in the unlock bypass mode. 15. The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode. The Erase Suspend command is valid only during a sector erase operation. 16. The Erase Resume command is valid only during the Erase Suspend mode.
17. Command is valid when device is ready to read array data or when device is in autoselect mode.
5. 6.
7.
8. 9.
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DATASHEET Table 13.
Cycles Command Sequence (Notes) Read (Note 5) Reset (Note 6) Autoselect (Note 7) Manufacturer ID Device ID (Note 8) SecSi Sector Factory Protect (Note 9) Sector Group Protect Verify (Note 10)
Command Definitions (x8 Mode, BYTE# = VIL)
Bus Cycles (Notes 1-4) First Second Addr Data Third Addr Data Fourth Addr Data Fifth Addr Data Sixth Addr Data
Addr RA XXX AAA AAA AAA AAA AAA AAA AAA AAA SA AAA AAA XXX XXX AAA AAA BA BA AA
Data RD F0 AA AA AA AA AA AA AA AA 29 AA AA A0 90 AA AA B0 30 98
1 1 4 6 4 4 3 4 4 6 1 3 3 2 2 6 6 1 1 1
555 555 555 555 555 555 555 555 555 555 PA XXX 555 555
55 55 55 55 55 55 55 55 55 55 PD 00 55 55
AAA AAA AAA AAA AAA AAA AAA SA AAA AAA
90 90 90 90 88 90 A0 25 F0 20
X00 X02 X06 (SA)X04
01 7E (Note 9) 00/01 X1C 1A X1E 00/01
Enter SecSi Sector Region Exit SecSi Sector Region Program Write to Buffer (Note 11) Program Buffer to Flash Write to Buffer Abort Reset (Note 12) Unlock Bypass Unlock Bypass Program (Note 13) Unlock Bypass Reset (Note 14) Chip Erase Sector Erase Program/Erase Suspend (Note 15) Program/Erase Resume (Note 16) CFI Query (Note 17)
XXX PA SA
00 PD BC PA PD WBL PD
AAA AAA
80 80
AAA AAA
AA AA
555 555
55 55
AAA SA
10 30
Legend: X = Don't care RA = Read Address of the memory location to be read. RD = Read Data read from location RA during read operation. PA = Program Address . Addresses latch on the falling edge of the WE# or CE# pulse, whichever happens later. PD = Program Data for location PA. Data latches on the rising edge of WE# or CE# pulse, whichever happens first. Notes: 1. See Table 1 for description of bus operations. 2. 3. 4. All values are in hexadecimal. Except for the read cycle and the fourth cycle of the autoselect command sequence, all bus cycles are write cycles. During unlock cycles, when lower address bits are 555 or AAAh as shown in table, address bits higher than A11 (except where BA is required) and data bits higher than DQ7 are don't cares. No unlock or command cycles required when device is in read mode. The Reset command is required to return to the read mode (or to the erase-suspend-read mode if previously in Erase Suspend) when the device is in the autoselect mode, or if DQ5 goes high while the device is providing status information. The fourth cycle of the autoselect command sequence is a read cycle. Data bits DQ15-DQ8 are don't care. See the Autoselect Command Sequence section for more information. The device ID must be read in three cycles. The data is 01h for top boot and 00h for bottom boot If WP# protects the top two address sectors, the data is 98h for factory locked and 18h for not factory locked. If WP# protects the
SA = Sector Address of sector to be verified (in autoselect mode) or erased. Address bits A20-A15 uniquely select any sector. WBL = Write Buffer Location. Address must be within the same write buffer page as PA. BC = Byte Count. Number of write buffer locations to load minus 1.
bottom two address sectors, the data is 88h for factory locked and 08h for not factor locked. 10. The data is 00h for an unprotected sector group and 01h for a protected sector group. 11. The total number of cycles in the command sequence is determined by the number of words written to the write buffer. The maximum number of cycles in the command sequence is 37. 12. Command sequence resets device for next command after aborted write-to-buffer operation. 13. The Unlock Bypass command is required prior to the Unlock Bypass Program command. 14. The Unlock Bypass Reset command is required to return to the read mode when the device is in the unlock bypass mode. 15. The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode. The Erase Suspend command is valid only during a sector erase operation. 16. The Erase Resume command is valid only during the Erase Suspend mode.
17. Command is valid when device is ready to read array data or when device is in autoselect mode.
5. 6.
7.
8. 9.
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DATASHEET
WRITE OPERATION STATUS
The device provides several bits to determine the status of a program or erase operation: DQ2, DQ3, DQ5, DQ6, and DQ7. Table 14 and the following subsections describe the function of these bits. DQ7 and DQ6 each offer a method for determining whether a program or erase operation is complete or in progress. The device also provides a hardware-based output signal, RY/BY#, to determine whether an Embedded Program or Erase operation is in progress or has been completed. valid data, the data outputs on DQ0-DQ6 may be still invalid. Valid data on DQ0-DQ7 will appear on successive read cycles. Table 14 shows the outputs for Data# Polling on DQ7. Figure 8 shows the Data# Polling algorithm. Figure 20 in the AC Characteristics section shows the Data# Polling timing diagram.
DQ7: Data# Polling
The Data# Polling bit, DQ7, indicates to the host system whether an Embedded Program or Erase algorithm is in progress or completed, or whether the device is in Erase Suspend. Data# Polling is valid after the rising edge of the final WE# pulse in the command sequence. During the Embedded Program algorithm, the device outputs on DQ7 the complement of the datum programmed to DQ7. This DQ7 status also applies to programming during Erase Suspend. When the Embedded Program algorithm is complete, the device outputs the datum programmed to DQ7. The system must provide the program address to read valid status information on DQ7. If a program address falls within a protected sector, Data# Polling on DQ7 is active for approximately 1 s, then the device returns to the read mode. During the Embedded Erase algorithm, Data# Polling produces a "0" on DQ7. When the Embedded Erase algorithm is complete, or if the device enters the Erase Suspend mode, Data# Polling produces a "1" on DQ7. The system must provide an address within any of the sectors selected for erasure to read valid status information on DQ7. After an erase command sequence is written, if all sectors selected for erasing are protected, Data# Polling on DQ7 is active for approximately 100 s, then the device returns to the read mode. If not all selected sectors are protected, the Embedded Erase algorithm erases the unprotected sectors, and ignores the selected sectors that are protected. However, if the system reads DQ7 at an address within a protected sector, the status may not be valid. Just prior to the completion of an Embedded Program or Erase operation, DQ7 may change asynchronously with DQ0-DQ6 while Output Enable (OE#) is asserted low. That is, the device may change from providing status information to valid data on DQ7. Depending on when the system samples the DQ7 output, it may read the status or valid data. Even if the device has completed the program or erase operation and DQ7 has
START
Read DQ7-DQ0 Addr = VA
DQ7 = Data?
Yes
No No
DQ5 = 1?
Yes Read DQ7-DQ0 Addr = VA
DQ7 = Data?
Yes
No FAIL PASS
Notes: 1. VA = Valid address for programming. During a sector erase operation, a valid address is any sector address within the sector being erased. During chip erase, a valid address is any non-protected sector address. 2. DQ7 should be rechecked even if DQ5 = "1" because DQ7 may change simultaneously with DQ5.
Figure 8.
Data# Polling Algorithm
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DATASHEET
RY/BY#: Ready/Busy#
The RY/BY# is a dedicated, open-drain output pin which indicates whether an Embedded Algorithm is in progress or complete. The RY/BY# status is valid after the rising edge of the final WE# pulse in the command sequence. Since RY/BY# is an open-drain output, several RY/BY# pins can be tied together in parallel with a pull-up resistor to VCC. If the output is low (Busy), the device is actively erasing or programming. (This includes programming in the Erase Suspend mode.) If the output is high (Ready), the device is in the read mode, the standby mode, or in the erase-suspend-read mode. Table 14 shows the outputs for RY/BY#.
After an erase command sequence is written, if all sectors selected for erasing are protected, DQ6 toggles for approximately 100 s, then returns to reading array data. If not all selected sectors are protected, the Embedded Erase algorithm erases the unprotected sectors, and ignores the selected sectors that are protected. The system can use DQ6 and DQ2 together to determine whether a sector is actively erasing or is erase-suspended. When the device is actively erasing (that is, the Embedded Erase algorithm is in progress), DQ6 toggles. When the device enters the Erase Suspend mode, DQ6 stops toggling. However, the system must also use DQ2 to determine which sectors are erasing or erase-suspended. Alternatively, the system can use DQ7 (see the subsection on DQ7: Data# Polling). If a program address falls within a protected sector, DQ6 toggles for approximately 1 s after the program command sequence is written, then returns to reading array data. DQ6 also toggles during the erase-suspend-program mode, and stops toggling once the Embedded Program algorithm is complete. Table 14 shows the outputs for Toggle Bit I on DQ6. Figure 9 shows the toggle bit algorithm. Figure 21 in the "AC Characteristics" section shows the toggle bit timing diagrams. Figure 22 shows the differences between DQ2 and DQ6 in graphical form. See also the subsection on DQ2: Toggle Bit II.
DQ6: Toggle Bit I
Toggle Bit I on DQ6 indicates whether an Embedded Program or Erase algorithm is in progress or complete, or whether the device has entered the Erase Suspend mode. Toggle Bit I may be read at any address, and is valid after the rising edge of the final WE# pulse in the command sequence (prior to the program or erase operation), and during the sector erase time-out. During an Embedded Program or Erase algorithm operation, successive read cycles to any address cause DQ6 to toggle. The system may use either OE# or CE# to control the read cycles. When the operation is complete, DQ6 stops toggling.
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DATASHEET
DQ2: Toggle Bit II
START
Read DQ7-DQ0
The "Toggle Bit II" on DQ2, when used with DQ6, indicates whether a particular sector is actively erasing (that is, the Embedded Erase algorithm is in progress), or whether that sector is erase-suspended. Toggle Bit II is valid after the rising edge of the final WE# pulse in the command sequence. DQ2 toggles when the system reads at addresses within those sectors that have been selected for erasure. (The system may use either OE# or CE# to control the read cycles.) But DQ2 cannot distinguish whether the sector is actively erasing or is erase-suspended. DQ6, by comparison, indicates whether the device is actively erasing, or is in Erase Suspend, but cannot distinguish which sectors are selected for erasure. Thus, both status bits are required for sector and mode information. Refer to Table 14 to compare outputs for DQ2 and DQ6. Figure 9 shows the toggle bit algorithm in flowchart form, and the section "DQ2: Toggle Bit II" explains the algorithm. See also the RY/BY#: Ready/Busy# subsection. Figure 21 shows the toggle bit timing diagram. Figure 22 shows the differences between DQ2 and DQ6 in graphical form.
Read DQ7-DQ0
Toggle Bit = Toggle? Yes
No
No
DQ5 = 1?
Yes
Read DQ7-DQ0 Twice
Reading Toggle Bits DQ6/DQ2
Refer to Figure 9 for the following discussion. Whenever the system initially begins reading toggle bit status, it must read DQ7-DQ0 at least twice in a row to determine whether a toggle bit is toggling. Typically, the system would note and store the value of the toggle bit after the first read. After the second read, the system would compare the new value of the toggle bit with the first. If the toggle bit is not toggling, the device has completed the program or erase operation. The system can read array data on DQ7-DQ0 on the following read cycle. However, if after the initial two read cycles, the system determines that the toggle bit is still toggling, the system also should note whether the value of DQ5 is high (see the section on DQ5). If it is, the system should then determine again whether the toggle bit is toggling, since the toggle bit may have stopped toggling just as DQ5 went high. If the toggle bit is no longer toggling, the device has successfully completed the program or erase operation. If it is still toggling, the device did not completed the operation successfully, and the system must write the reset command to return to reading array data. The remaining scenario is that the system initially determines that the toggle bit is toggling and DQ5 has not gone high. The system may continue to monitor the toggle bit and DQ5 through successive read cycles, determining the status as described in the previous paragraph. Alternatively, it may choose to perform
Toggle Bit = Toggle?
No
Yes Program/Erase Operation Not Complete, Write Reset Command Program/Erase Operation Complete
Note: The system should recheck the toggle bit even if DQ5 = "1" because the toggle bit may stop toggling as DQ5 changes to "1." See the subsections on DQ6 and DQ2 for more information.
Figure 9.
Toggle Bit Algorithm
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DATASHEET other system tasks. In this case, the system must start at the beginning of the algorithm when it returns to determine the status of the operation (top of Figure 9). mand. When the time-out period is complete, DQ3 switches from a "0" to a "1." If the time between additional sector erase commands from the system can be assumed to be less than 50 s, the system need not monitor DQ3. See also the Sector Erase Command Sequence section. After the sector erase command is written, the system should read the status of DQ7 (Data# Polling) or DQ6 (Toggle Bit I) to ensure that the device has accepted the command sequence, and then read DQ3. If DQ3 is "1," the Embedded Erase algorithm has begun; all further commands (except Erase Suspend) are ignored until the erase operation is complete. If DQ3 is "0," the device will accept additional sector erase commands. To ensure the command has been accepted, the system software should check the status of DQ3 prior to and following each subsequent sector erase command. If DQ3 is high on the second status check, the last command might not have been accepted. Table 14 shows the status of DQ3 relative to the other status bits.
DQ5: Exceeded Timing Limits
DQ5 indicates whether the program, erase, or write-to-buffer time has exceeded a specified internal pulse count limit. Under these conditions DQ5 produces a "1," indicating that the program or erase cycle was not successfully completed. The device may output a "1" on DQ5 if the system tries to program a "1" to a location that was previously programmed to "0." Only an erase operation can change a "0" back to a "1." Under this condition, the device halts the operation, and when the timing limit has been exceeded, DQ5 produces a "1." In all these cases, the system must write the reset command to return the device to the reading the array (or to erase-suspend-read if the device was previously in the erase-suspend-program mode).
DQ3: Sector Erase Timer
After writing a sector erase command sequence, the system may read DQ3 to determine whether or not erasure has begun. (The sector erase timer does not apply to the chip erase command.) If additional sectors are selected for erasure, the entire time-out also applies after each additional sector erase com-
DQ1: Write-to-Buffer Abort
DQ1 indicates whether a Write-to-Buffer operation was aborted. Under these conditions DQ1 produces a "1". The system must issue the Write-to-Buffer-Abort-Reset command sequence to return the device to reading array data. See Write Buffer
Table 14.
Status Embedded Program Algorithm Embedded Erase Algorithm Program-Suspended ProgramSector Suspend Non-Program Read Suspended Sector Erase-Suspended EraseSector Suspend Non-Erase Suspended Read Sector Erase-Suspend-Program (Embedded Program) Busy (Note 3) Abort (Note 4)
Write Operation Status
DQ6 Toggle Toggle DQ5 (Note 1) 0 0 DQ3 N/A 1 DQ2 (Note 2) No toggle Toggle DQ1 0 N/A RY/BY# 0 0 1 1 N/A Data Toggle N/A 1 1 N/A N/A N/A N/A N/A N/A N/A 0 1 0 0 0
Standard Mode Program Suspend Mode
DQ7 (Note 2) DQ7# 0
Invalid (not allowed) Data 1 No toggle 0
Erase Suspend Mode
DQ7# DQ7# DQ7#
Toggle Toggle Toggle
0 0 0
Write-toBuffer
Notes: 1. DQ5 switches to `1' when an Embedded Program, Embedded Erase, or Write-to-Buffer operation has exceeded the maximum timing limits. Refer to the section on DQ5 for more information. 2. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further details. 3. The Data# Polling algorithm should be used to monitor the last loaded write-buffer address location. 4. DQ1 switches to `1' when the device has aborted the write-to-buffer operation.
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DATASHEET
ABSOLUTE MAXIMUM RATINGS
Storage Temperature Plastic Packages . . . . . . . . . . . . . . . -65C to +150C Ambient Temperature with Power Applied . . . . . . . . . . . . . -55C to +125C Voltage with Respect to Ground VCC (Note 1) . . . . . . . . . . . . . . . . .-0.5 V to +4.0 V VIO . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to +4.0 V A9, OE#, ACC, and RESET# (Note 2) . . . . . . . . . . . . . . . . . . . .-0.5 V to +12.5 V All other pins (Note 1) . . . . . . -0.5 V to VCC +0.5 V Output Short Circuit Current (Note 3) . . . . . . 200 mA
Notes: 1. Minimum DC voltage on input or I/O pins is -0.5 V. During voltage transitions, input or I/O pins may overshoot V SS to -2.0 V for periods of up to 20 ns. Maximum DC voltage on input or I/O pins is VCC +0.5 V. See Figure 10. During voltage transitions, input or I/O pins may overshoot to VCC +2.0 V for periods up to 20 ns. See Figure 11. 2. Minimum DC input voltage on pins A9, OE#, ACC, and RESET# is -0.5 V. During voltage transitions, A9, OE#, ACC, and RESET# may overshoot V SS to -2.0 V for periods of up to 20 ns. See Figure 10. Maximum DC input voltage on pin A9, OE#, ACC, and RESET# is +12.5 V which may overshoot to +14.0 V for periods up to 20 ns. 3. No more than one output may be shorted to ground at a time. Duration of the short circuit should not be greater than one second. Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational sections of this data sheet is not implied. Exposure of the device to absolute maximum rating conditions for extended periods may affect device reliability. +0.8 V -0.5 V -2.0 V 20 ns 20 ns 20 ns
Figure 10. Maximum Negative Overshoot Waveform
20 ns VCC +2.0 V VCC +0.5 V 2.0 V 20 ns 20 ns
Figure 11. Maximum Positive Overshoot Waveform
OPERATING RANGES
Industrial (I) Devices Ambient Temperature (TA) . . . . . . . . . -40C to +85C Supply Voltages VCC for full voltage range . . . . . . . . . . . . . . . 2.7-3.6 V VCC for regulated voltage range . . . . . . . . . . 3.0-3.6 V
Note: Operating ranges define those limits between which the functionality of the device is guaranteed.
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DATASHEET
DC CHARACTERISTICS CMOS Compatible
Parameter Symbol ILI ILIT ILR ILO ICC1 Parameter Description (Notes) Input Load Current (1) A9, ACC Input Load Current Reset Leakage Current Output Leakage Current VCC Active Read Current (2, 3) VCC Initial Page Read Current (2, 3) Test Conditions VIN = VSS to VCC, VCC = VCC max VCC = VCC max; A9 = 12.5 V VCC = VCC max; RESET# = 12.5 V VOUT = VSS to VCC, VCC = VCC max 5 MHz CE# = VIL, OE# = VIH, 1 MHz 1 MHz ICC2 CE# = VIL, OE# = VIH 10 MHz 10 MHz 33 MHz 3 13 4 40 3 6 50 1 1 1 - 0.5 V 1.9 V 11.5 Min Typ Max 1.0 35 35 1.0 34 mA 43 50 80 20 40 60 5 5 5 0.8 VCC + 0.5 12.5 0.15 x VCC 0.85 VCC VCC-0.4 2.3 2.5 mA mA A A A V V V V V V V mA Unit A A A A
ICC3 ICC4 ICC5 ICC6 ICC7 VIL VIH VID VOL VOH1 VOH2 VLKO
VCC Intra-Page Read Current (2, 3) VCC Active Write Current (3, 4) VCC Standby Current (3) VCC Reset Current (3) Automatic Sleep Mode (3, 5) Input Low Voltage (5) Input High Voltage (5)
CE# = VIL, OE# = VIH CE# = VIL, OE# = VIH
CE#, RESET# = VCC 0.3 V, WP# = VIH RESET# = VSS 0.3 V, WP# = VIH VIH = VCC 0.3 V; VIL = VSS 0.3 V, WP# = VIH
Voltage for Autoselect and Temporary VCC = 2.7 -3.6 V Sector Unprotect Output Low Voltage Output High Voltage Low VCC Lock-Out Voltage (6) IOL = 4.0 mA, VCC = VCC min IOH = -2.0 mA, VCC = VCC min IOH = -100 A, VCC = VCC min
Notes: 1. On the WP#/ACC pin only, the maximum input load current when WP# = VIL is 5.0 A. 2. The ICC current listed is typically less than 2 mA/MHz, with OE# at VIH. 3. Maximum ICC specifications are tested with VCC = VCCmax. 4. ICC active while Embedded Erase or Embedded Program is in progress. 5. Automatic sleep mode enables the low power mode when addresses remain stable for tACC + 30 ns. VCC voltage requirements. 6. Not 100% tested.
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DATASHEET
TEST CONDITIONS
Table 15.
3.3 V Test Condition Output Load Output Load Capacitance, CL (including jig capacitance) CL 6.2 k Input Rise and Fall Times Input Pulse Levels Input timing measurement reference levels Note: Diodes are IN3064 or equivalent Output timing measurement reference levels
Test Specifications
All Speeds 1 TTL gate 30 5 0.0-3.0 1.5 1.5 pF ns V V V Unit
Device Under Test
2.7 k
Figure 12.
Test Setup
KEY TO SWITCHING WAVEFORMS
WAVEFORM INPUTS Steady Changing from H to L Changing from L to H Don't Care, Any Change Permitted Does Not Apply Changing, State Unknown Center Line is High Impedance State (High Z) OUTPUTS
3.0 V 0.0 V
Input
1.5 V
Measurement Level
1.5 V
Output
Figure 13. Input Waveforms and Measurement Levels
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DATASHEET
AC CHARACTERISTICS Read-Only Operations
Parameter JEDE C Std. Description tAVAV tRC Read Cycle Time (Note 1) CE#, OE# = VIL OE# = VIL Test Setup Min Max Max Max Max Max Max 90R 90 90 90 25 25 100R Speed Options 100 110R 110 110 110 30 30 25 25 40 40 30 30 110 120R 120 Unit ns ns ns 40 40 ns ns ns ns
100 100 100 30 30
120 120 120
tAVQV tACC Address to Output Delay tELQV tCE Chip Enable to Output Delay tPAC
C
Page Access Time
tGLQV tEHQZ tGHQZ
tOE Output Enable to Output Delay tDF tDF Chip Enable to Output High Z (Note 1) Output Enable to Output High Z (Note 1)
tAXQX
Output Hold Time From tOH Addresses, CE# or OE#, Whichever Occurs First Output Enable Read Hold Time (Note Toggle and 1) Data# Polling
Min Min Min
0 0 10
ns ns ns
tOEH
Notes: 1. Not 100% tested. 2. See Figure 12 and Table 15 for test specifications.
tRC Addresses CE# tRH tRH OE# tOEH WE# HIGH Z Outputs RESET# RY/BY# Output Valid tCE tOH HIGH Z tOE tDF Addresses Stable tACC
0V
Figure 14.
Read Operation Timings
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DATASHEET
AC CHARACTERISTICS
A21-A2 Same Page
A1-A0
Aa
tACC
Ab
tPACC
Ac
tPACC tPACC
Ad
Data Bus CE# OE#
Qa
Qb
Qc
Qd
* Figure shows word mode. Addresses are A1-A-1 for byte mode.
Figure 15.
Page Read Timings
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DATASHEET
AC CHARACTERISTICS Hardware Reset (RESET#)
Parameter JEDEC Std. tReady tReady tRP tRH tRPD Description RESET# Pin Low (During Embedded Algorithms) to Read Mode (See Note) RESET# Pin Low (NOT During Embedded Algorithms) to Read Mode (See Note) RESET# Pulse Width Reset High Time Before Read (See Note) RESET# Low to Standby Mode Max Max Min Min Min All Speed Options 20 500 500 50 20 Unit s ns ns ns s
Note: Not 100% tested.
RY/BY#
CE#, OE# tRH RESET# tRP tReady
Reset Timings NOT during Embedded Algorithms Reset Timings during Embedded Algorithms
tReady RY/BY# tRB CE#, OE#
RESET# tRP
Figure 16.
Reset Timings
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DATASHEET
AC CHARACTERISTICS Erase and Program Operations
Parameter JEDEC tAVAV tAVWL Std. tWC tAS tASO tWLAX tAH tAHT tDVWH tWHDX tDS tDH tOEPH tGHWL tELWL tWHEH tWLWH tWHDL tGHWL tCS tCH tWP tWPH Description Write Cycle Time (Note 1) Address Setup Time Address Setup Time to OE# low during toggle bit polling Address Hold Time Address Hold Time From CE# or OE# high during toggle bit polling Data Setup Time Data Hold Time Output Enable High during toggle bit polling Read Recovery Time Before Write (OE# High to WE# Low) CE# Setup Time CE# Hold Time Write Pulse Width Write Pulse Width High Write Buffer Program Operation (Notes 2, 3) Effective Write Buffer Program Operation (Notes 2, 4) Accelerated Effective Write Buffer Program Operation (Notes 2, 4) Single Word/Byte Program Operation (Note 2, 5) Accelerated Single Word/Byte Programming Operation (Note 2, 5) tWHWH2 tWHWH2 tVHH tVCS tBUSY Sector Erase Operation (Note 2) VHH Rise and Fall Time (Note 1) VCC Setup Time (Note 1) WE# to RY/BY# Per Byte Per Word Per Byte Per Word Byte Typ Word Byte Typ Word Typ Min Min Min 90 100 54 0.5 250 50 110 120 s sec ns s ns 60 54 s s Min Min Min Min Min Min Min Min Min Min Min Min Min Typ Typ Typ Typ Typ 90R 90 Speed Options 100, 100R 100 0 15 45 0 45 0 20 0 0 0 35 30 240 7.5 15 6.25 12.5 60 110, 110R 110 120, 120R 120 Unit ns ns ns ns ns ns ns ns ns ns ns ns ns s s s s s s
tWHWH1
tWHWH1
Notes: 1. Not 100% tested. 2. See the "Erase And Programming Performance" section for more information. 3. For 1-16 words (or 1-32 bytes) programmed. 4. Effective write buffer specification is based upon a 16-word (or 32-byte) write buffer operation. 5. Word/Byte programming specification is based upon a single word/byte programming operation not utilizing the write buffer.
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DATASHEET
AC CHARACTERISTICS
Program Command Sequence (last two cycles) tWC Addresses 555h tAS PA tAH CE# OE# tWP WE# tCS tDS Data tDH PD tBUSY RY/BY# Status DOUT tRB tWPH tWHWH1 PA PA Read Status Data (last two cycles)
tCH
A0h
VCC tVCS
Notes: 1. PA = program address, PD = program data, DOUT is the true data at the program address. 2. Illustration shows device in word mode.
Figure 17.
Program Operation Timings
VHH
ACC
VIL or VIH tVHH tVHH
VIL or VIH
Figure 18.
Accelerated Program Timing Diagram
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DATASHEET
AC CHARACTERISTICS
Erase Command Sequence (last two cycles) tWC Addresses 2AAh tAS SA
555h for chip erase
Read Status Data
VA tAH
VA
CE#
OE# tWP WE# tCS tDS
tCH
tWPH
tWHWH2
tDH Data 55h 30h
10 for Chip Erase In Progress Complete
tBUSY RY/BY# tVCS VCC
tRB
Notes: 1. SA = sector address (for Sector Erase), VA = Valid Address for reading status data (see "Write Operation Status". 2. These waveforms are for the word mode.
Figure 19.
Chip/Sector Erase Operation Timings
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DATASHEET
AC CHARACTERISTICS
tRC Addresses VA tACC tCE CE# tCH OE# tOEH WE# tOH DQ7
High Z
VA
VA
tOE tDF
Complement
Complement
True
Valid Data
High Z
DQ0-DQ6 tBUSY RY/BY#
Status Data
Status Data
True
Valid Data
Note: VA = Valid address. Illustration shows first status cycle after command sequence, last status read cycle, and array data read cycle.
Figure 20.
Data# Polling Timings (During Embedded Algorithms)
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DATASHEET
AC CHARACTERISTICS
tAHT Addresses
tAS
tAHT tASO CE# tOEH WE# tOEPH OE# tDH DQ6/DQ2 Valid Data
Valid Status
tCEPH
tOE
Valid Status Valid Status
Valid Data
(first read) RY/BY#
(second read)
(stops toggling)
Note: VA = Valid address; not required for DQ6. Illustration shows first two status cycle after command sequence, last status read cycle, and array data read cycle
Figure 21.
Toggle Bit Timings (During Embedded Algorithms)
Enter Embedded Erasing WE#
Erase Suspend Erase
Enter Erase Suspend Program Erase Suspend Program
Erase Resume Erase Suspend Read Erase Erase Complete
Erase Suspend Read
DQ6
DQ2 Note: DQ2 toggles only when read at an address within an erase-suspended sector. The system may use OE# or CE# to toggle DQ2 and DQ6.
Figure 22.
DQ2 vs. DQ6
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DATASHEET
AC CHARACTERISTICS Temporary Sector Unprotect
Parameter JEDEC Std tVIDR tRSP Description VID Rise and Fall Time (See Note) RESET# Setup Time for Temporary Sector Unprotect Min Min All Speed Options 500 4 Unit ns s
Note: Not 100% tested.
VID RESET# VSS, VIL, or VIH tVIDR Program or Erase Command Sequence CE# tVIDR
VID VSS, VIL, or VIH
WE# tRSP RY/BY# tRRB
Figure 23.
Temporary Sector Group Unprotect Timing Diagram
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DATASHEET
AC CHARACTERISTICS
VID VIH
RESET#
SA, A6, A1, A0
Valid* Sector Group Protect or Unprotect
Valid* Verify 40h
Sector Group Protect: 150 s, Sector Group Unprotect: 15 ms
Valid*
Data
60h
60h
Status
1 s CE#
WE#
OE#
* For sector group protect, A6-A0 = 0xx0010. For sector group unprotect, A6-A0 = 1xx0010.
Figure 24.
Sector Group Protect and Unprotect Timing Diagram
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DATASHEET
AC CHARACTERISTICS Alternate CE# Controlled Erase and Program Operations
Parameter JEDEC tAVAV tAVWL tELAX tDVEH tEHDX tGHEL tWLEL tEHWH tELEH tEHEL Std. tWC tAS tAH tDS tDH tGHEL tWS tWH tCP tCPH Description Write Cycle Time (Note 1) Address Setup Time Address Hold Time Data Setup Time Data Hold Time Read Recovery Time Before Write (OE# High to WE# Low) WE# Setup Time WE# Hold Time CE# Pulse Width CE# Pulse Width High Write Buffer Program Operation (Notes 2, 3) Effective Write Buffer Program Operation (Notes 2, 4) Accelerated Effective Write Buffer Program Operation (Notes 2, 4) Single Word/Byte Program Operation (Note 2, 5) Accelerated Single Word/Byte Programming Operation (Note 2, 5) tWHWH2 tWHWH2 tRH Sector Erase Operation (Note 2) RESET# High Time Before Write (Note 1) Per Byte Per Word Per Byte Per Word Byte Typ Word Byte Typ Word Typ Min 54 0.5 50 s sec ns 60 54 s s Min Min Min Min Min Min Min Min Min Min Typ Typ Typ Typ Typ 90R 90 Speed Options 100, 100R 100 0 45 45 0 0 0 0 45 30 240 7.5 15 6.25 12.5 60 110, 110R 110 120, 120R 120 Unit ns ns ns ns ns ns ns ns ns ns s s s s s s
tWHWH1
tWHWH1
Notes: 1. Not 100% tested. 2. See the "Erase And Programming Performance" section for more information. 3. For 1-16 words (or 1-32 bytes in byte mode) programmed. 4. Effective write buffer specification is based upon a 16-word (or 32-byte) write buffer operation. 5. Word/Byte programming specification is based upon a single word/byte programming operation not utilizing the write buffer.
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DATASHEET
AC CHARACTERISTICS
555 for program 2AA for erase PA for program SA for sector erase 555 for chip erase
Data# Polling PA
Addresses tWC tWH WE# tGHEL OE# tCP CE# tWS tCPH tDS tDH Data tRH
A0 for program 55 for erase PD for program 30 for sector erase 10 for chip erase
tAS tAH
tWHWH1 or 2
tBUSY
DQ7#
DOUT
RESET#
Notes: RY/BY# 1. Figure indicates last two bus cycles of a program or erase operation. 2. PA = program address, SA = sector address, PD = program data. 3. DQ7# is the complement of the data written to the device. DOUT is the data written to the device. 4. Waveforms are for the word mode.
Figure 25.
Alternate CE# Controlled Write (Erase/Program) Operation Timings
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DATASHEET
ERASE AND PROGRAMMING PERFORMANCE
Parameter Sector Erase Time Chip Erase Time Byte Single Word/Byte Program Time (Note 3) Word Accelerated Single Word/Byte Program Time (Note 3) Total Write Buffer Program Time (Note 4) Per Byte Effective Write Buffer Program Time (Note 5) Per Word Total Accelerated Write Buffer Program Time (Note 4) Effective Accelerated Write Buffer Program Time (Note 5) Chip Program Time Per Byte Per Word 15 200 6.25 12.5 31.5 75 1040 33 65 73 s s s s sec Byte Word 60 54 54 240 7.5 600 540 540 1200 38 s s s s s Excludes system level overhead (Note 7) Typ (Note 1) 0.5 32 60 Max (Note 2) 3.5 64 600 Unit sec sec s Comments Excludes 00h programming prior to erasure (Note 6)
Notes: 1. Typical program and erase times assume the following conditions: 25C, 3.0 V VCC, Programming specification assume that all bits are programmed to 00h. 2. Maximum values are measured at VCC = 3.0, worst case temperature. Maximum values are valid up to and including 100,000 program/erase cycles. 3. Word/Byte programming specification is based upon a single word/byte programming operation not utilizing the write buffer. 4. For 1-16 words or 1-32 bytes programmed in a single write buffer programming operation. 5. Effective write buffer specification is calculated on a per-word/per-byte basis for a 16-word/32-byte write buffer operation. 6. In the pre-programming step of the Embedded Erase algorithm, all bits are programmed to 00h before erasure. 7. System-level overhead is the time required to execute the command sequence (s) for the program command. See Tables 12 and 13 for further information on command definitions. 8. The device has a minimum erase and program cycle endurance of 100,000 cycles.
LATCHUP CHARACTERISTICS
Description Input voltage with respect to VSS on all pins except I/O pins (including A9, OE#, and RESET#) Input voltage with respect to VSS on all I/O pins VCC Current Min -1.0 V -1.0 V -100 mA Max 12.5 V VCC + 1.0 V +100 mA
Note: Includes all pins except VCC. Test conditions: VCC = 3.0 V, one pin at a time.
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DATASHEET
TSOP PIN AND BGA PACKAGE CAPACITANCE
Parameter Symbol CIN Parameter Description Input Capacitance Test Setup TSOP VIN = 0 Fine-Pitch BGA TSOP COUT Output Capacitance VOUT = 0 Fine-Pitch BGA TSOP CIN2 Control Pin Capacitance VIN = 0 Fine-Pitch BGA Typ 6 4.2 8.5 5.4 7.5 3.9 Max 7.5 5.0 12 6.5 9 4.7 Unit pF pF pF pF pF pF
Notes: 1. Sampled, not 100% tested. 2. Test conditions TA = 25C, f = 1.0 MHz.
DATA RETENTION
Parameter Description Minimum Pattern Data Retention Time 125C 20 Years Test Conditions 150C Min 10 Unit Years
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DATASHEET
PHYSICAL DIMENSIONS TS 048--48-Pin Standard Pinout Thin Small Outline Package (TSOP)
Dwg rev AA; 10/99
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Am29LV320MT/B
55
DATASHEET
PHYSICAL DIMENSIONS TS 048--48-Pin Standard Pinout Thin Small Outline Package (TSOP)
Dwg rev AA; 10/99
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DATASHEET
PHYSICAL DIMENSIONS FBC048--48-Ball Fine-pitch Ball Grid Array (fBGA) 9 x 8 mm Package
Dwg rev AF; 10/99
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DATASHEET
PHYSICAL DIMENSIONS LAA064--64-Ball Fortified Ball Grid Array (FBGA) 13 x 11 mm Package
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DATASHEET
REVISION SUMMARY Revision A (June 21, 2002)
Initial release.
Revision A+2 (September 19, 2002)
Distinctive Characteristics C hang ed the flex ible sec tor arc hitec ture from Sixty-four 32 Kword/64-Kbyte sectors to Sixty-three 32 Kword/64-Kbyte sectors.
Revision A+1 (August 9, 2002)
MIRRORBIT 64 MBIT Device Family Added 64 Fortified BGA to LV640MU device. Alternate CE# Controlled Erase and Program Operations Added tRH parameter to table. Erase and Program Operations Added tBUSY parameter to table. CMOS Compatable Deleted the IACC specification row in DC Characteristics table. Figure 16. Program Operation Timings Added RY/BY# to waveform. TSOP and BGA PIN Capacitance Added the FBGA package. Program Suspend/Program Resume Command Sequence Changed 15 s typical to maximum and added 5 s typical. Erase Suspend/Erase Resume Commands Changed typical from 20 s to 5 s and added a maximum of 20 s. Mirrorbit 32 Mbit Device Family Changed 48-pin TSOP to 40-pin TSOP. Product Selector Guide, Valid Combinations Table, Read-Only Operations, Erase and Program Operations and Alternate CE# Controlled Erase and Program Operations Added regulated OPN to table. Common Flash Memory Interface Changed the text in the third paragraph to end with "... reading array data." Command Definitions Modified the last sentences in the first paragraph.
Revision A+3 (November 19, 2002)
Product Selector Guide and Read Only Operations Changed the page access times and TOE Moved the reverse speed options up into correct row. Changed VCC range for full speed option to 2.7-3.6. Ordering Information and Physical Dimensions Removed FBD048 package. Added FBC048 package. Added TS048 package. Changed order numbers and package markings to reflect new package. Table 7. SecSi Sector Contents Changed the x8 Secsi Sector Address range to 000010h-0000FFh. Customer Lockable: SecSi Sector NOT Programmed or Protected at the factory. Added second bullet, SecSi sector-protect verify text and figure 3. SecSi Sector Flash Memory Region, and Enter SecSi Sector/Exit SecSi Sector Command Sequence Noted that the ACC function and unlock bypass modes are not available when the SecSi sector is enabled. Byte/Word Program Command Sequence, Sector Erase Command Sequence, and Chip Erase Command Sequence Noted that the SecSi Sector, autoselect, and CFI functions are unavailable when a program or erase operation is in progress." Common Flash Memory Interface (CFI) Changed wording in last sentence of third paragraph from, "...the autoselect mode." to "...reading array data." Changed CFI website address.
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DATASHEET Erase and Programming Performance Erase and Programming Performance Changed the typicals and/or maximums of the Chip Erase Time, Effective Write Buffer Program Time, Byte/Word Program Time, and Accelerated Effective Program Time to TBD. Input values into table that were previously TBD. Added note 3 and 4
Revision B (May 16, 2003)
Distinctive Characteristics Added typical active read current Global Converted to full datasheet version. Modified SecSi Sector Flash Memory Region section to include ESN references. CMOS Compatible Corrected Typ and Max values for the ICC 1, 2, and 3. Erase and Program Operations and Alternate CE# Controlled Erase and Program Operations Changed Accelerated Effective Write Buffer Program Operation value. Erase and Programming Performance Input values into table that were previously TBD. Modified notes. Removed Word references.
Revision A+4 (February 16, 2003)
Distinctive Characteristics Corrected performance characteristics. Product Selector Guide Added note 2. Ordering Information Corrected Valid Combinations table. Added Note. AC Characteristics Input values in the tWHWH1 and tWHWH2 parameters in the Erase and Program Options table that were previously TBD. Also, added note 5. Input values in the tWHWH1 and tWHWH2 parameters in the Alternate CE# Controlled Erase and Program Options table that were previously TBD. Also, added note 5.
Trademarks Copyright (c) 2003 Advanced Micro Devices, Inc. All rights reserved. AMD, the AMD logo, and combinations thereof are registered trademarks of Advanced Micro Devices, Inc. ExpressFlash is a trademark of Advanced Micro Devices, Inc. Product names used in this publication are for identification purposes only and may be trademarks of their respective companies.
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Sales Offices and Representatives
North America
ALABAMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 5 6 ) 8 3 0 - 9 1 9 2 ARIZONA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 6 0 2 ) 24 2 - 4 4 0 0 CALIFORNIA, Irvine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 4 9 ) 4 5 0 - 7 5 0 0 Sunnyvale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 4 0 8 ) 7 3 2 - 24 0 0 COLORADO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 3 0 3 ) 74 1 - 2 9 0 0 CONNECTICUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 0 3 ) 2 6 4 - 7 8 0 0 FLORIDA, Clearwater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 2 7 ) 7 9 3 - 0 0 5 5 Miami (Lakes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 3 0 5 ) 8 2 0 - 1 1 1 3 GEORGIA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 7 0 ) 8 1 4 - 0 2 2 4 ILLINOIS, Chicago . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 6 3 0 ) 7 7 3 - 4 4 2 2 MASSACHUSETTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 8 1 ) 2 1 3 - 6 4 0 0 MICHIGAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 4 8 ) 4 7 1 - 6 2 9 4 MINNESOTA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 6 1 2 ) 74 5 - 0 0 0 5 NEW JERSEY, Chatham . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 7 3 ) 7 0 1 - 1 7 7 7 NEW YORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 1 6 ) 4 2 5 - 8 0 5 0 NORTH CAROLINA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 1 9 ) 8 4 0 - 8 0 8 0 OREGON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 5 0 3 ) 24 5 - 0 0 8 0 PENNSYLVANIA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 1 5 ) 3 4 0 - 1 1 8 7 SOUTH DAKOTA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 6 0 5 ) 69 2 - 5 7 7 7 TEXAS, Austin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 5 1 2 ) 3 4 6 - 7 8 3 0 Dallas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 7 2 ) 9 8 5 - 1 3 4 4 Houston . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 8 1 ) 3 76 - 8 0 8 4 VIRGINIA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 0 3 ) 7 3 6 - 9 5 6 8
Representatives in U.S. and Canada
ARIZONA, Tempe - Centaur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 4 8 0 ) 8 3 9 - 2 3 2 0 CALIFORNIA, Calabasas - Centaur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 8 1 8 ) 8 7 8 - 5 8 0 0 Irvine - Centaur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 4 9 ) 2 6 1 - 2 1 2 3 San Diego - Centaur. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 8 5 8 ) 2 7 8 - 4 9 5 0 Santa Clara - Fourfront. . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 4 0 8 ) 3 5 0 - 4 8 0 0 CANADA, Burnaby, B.C. - Davetek Marketing. . . . . . . . . . . . . . . . . . . . ( 6 0 4 ) 4 3 0 - 3 6 8 0 Calgary, Alberta - Davetek Marketing. . . . . . . . . . . . . . . . . ( 4 0 3 ) 2 8 3 - 3 5 7 7 Kanata, Ontario - J-Squared Tech. . . . . . . . . . . . . . . . . . . . ( 6 1 3 ) 5 9 2 - 9 5 4 0 Mississauga, Ontario - J-Squared Tech. . . . . . . . . . . . . . . . . . ( 9 0 5 ) 6 7 2 - 2 0 3 0 St Laurent, Quebec - J-Squared Tech. . . . . . . . . . . . . . . . ( 5 1 4 ) 7 4 7 - 1 2 1 1 COLORADO, Golden - Compass Marketing . . . . . . . . . . . . . . . . . . . . . . ( 3 0 3 ) 2 7 7 - 0 4 5 6 FLORIDA, Melbourne - Marathon Technical Sales . . . . . . . . . . . . . . . . ( 3 2 1 ) 7 2 8 - 7 7 0 6 Ft. Lauderdale - Marathon Technical Sales . . . . . . . . . . . . . . ( 9 5 4 ) 5 2 7 - 4 9 4 9 Orlando - Marathon Technical Sales . . . . . . . . . . . . . . . . . . ( 4 0 7 ) 8 7 2 - 5 7 7 5 St. Petersburg - Marathon Technical Sales . . . . . . . . . . . . . . ( 7 2 7 ) 8 9 4 - 3 6 0 3 GEORGIA, Duluth - Quantum Marketing . . . . . . . . . . . . . . . . . . . . . ( 6 7 8 ) 5 8 4 - 1 1 2 8 ILLINOIS, Skokie - Industrial Reps, Inc. . . . . . . . . . . . . . . . . . . . . . . . . ( 8 4 7 ) 9 6 7 - 8 4 3 0 INDIANA, Kokomo - SAI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 6 5 ) 4 5 7 - 7 2 4 1 IOWA, Cedar Rapids - Lorenz Sales . . . . . . . . . . . . . . . . . . . . . . ( 3 1 9 ) 2 9 4 - 1 0 0 0 KANSAS, Lenexa - Lorenz Sales . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 1 3 ) 4 6 9 - 1 3 1 2 MASSACHUSETTS, Burlington - Synergy Associates . . . . . . . . . . . . . . . . . . . . . ( 7 8 1 ) 2 3 8 - 0 8 7 0 MICHIGAN, Brighton - SAI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 8 1 0 ) 2 2 7 - 0 0 0 7 MINNESOTA, St. Paul - Cahill, Schmitz & Cahill, Inc. . . . . . . . . . . . . . . . . . ( 6 5 1 ) 69 9 - 0 2 0 0 MISSOURI, St. Louis - Lorenz Sales . . . . . . . . . . . . . . . . . . . . . . . . . . ( 3 1 4 ) 9 9 7 - 4 5 5 8 NEW JERSEY, Mt. Laurel - SJ Associates . . . . . . . . . . . . . . . . . . . . . . . . . ( 8 5 6 ) 8 6 6 - 1 2 3 4 NEW YORK, Buffalo - Nycom, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 1 6 ) 7 4 1 - 7 1 1 6 East Syracuse - Nycom, Inc. . . . . . . . . . . . . . . . . . . . . . . ( 3 1 5 ) 4 3 7 - 8 3 4 3 Pittsford - Nycom, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 1 6 ) 5 8 6 - 3 6 6 0 Rockville Centre - SJ Associates . . . . . . . . . . . . . . . . . . . . ( 5 1 6 ) 5 3 6 - 4 2 4 2 NORTH CAROLINA, Raleigh - Quantum Marketing . . . . . . . . . . . . . . . . . . . . . . ( 9 1 9 ) 8 4 6 - 5 7 2 8 OHIO, Middleburg Hts - Dolfuss Root & Co. . . . . . . . . . . . . . . . . ( 4 4 0 ) 8 1 6 - 1 6 6 0 Powell - Dolfuss Root & Co. . . . . . . . . . . . . . . . . . . . . . . ( 6 1 4 ) 7 8 1 - 0 7 2 5 Vandalia - Dolfuss Root & Co. . . . . . . . . . . . . . . . . . . . . . ( 9 3 7 ) 8 9 8 - 9 6 1 0 Westerville - Dolfuss Root & Co. . . . . . . . . . . . . . . . . . . ( 6 1 4 ) 5 2 3 - 1 9 9 0 OREGON, Lake Oswego - I Squared, Inc. . . . . . . . . . . . . . . . . . . . . . . ( 5 0 3 ) 6 7 0 - 0 5 5 7 UTAH, Murray - Front Range Marketing . . . . . . . . . . . . . . . . . . . . ( 8 0 1 ) 2 8 8 - 2 5 0 0 VIRGINIA, Glen Burnie - Coherent Solution, Inc. . . . . . . . . . . . . . . . . ( 4 1 0 ) 7 6 1 - 2 2 5 5 WASHINGTON, Kirkland - I Squared, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . ( 4 2 5 ) 8 2 2 - 9 2 2 0 WISCONSIN, Pewaukee - Industrial Representatives . . . . . . . . . . . . . . . . ( 2 6 2 ) 5 74 - 9 3 9 3
International
AUSTRALIA, North Ryde . . . . . . . . . . . . . . . . . . . . . . . T E L ( 6 1 ) 2 - 8 8 - 7 7 7 - 2 2 2 BELGIUM, Antwerpen . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 3 2 ) 3 - 2 4 8 - 4 3 - 0 0 BRAZIL, San Paulo . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 5 5 ) 1 1 - 5 5 0 1 - 2 1 0 5 CHINA, Beijing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 6 ) 1 0 - 6 5 1 0 - 2 1 8 8 Shanghai . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 6 ) 2 1 - 6 3 5 - 0 0 8 3 8 Shenzhen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 6 ) 7 5 5 - 24 6 - 1 5 5 0 FINLAND, Helsinki . . . . . . . . . . . . . . . . . . . . . . T E L ( 3 5 8 ) 8 8 1 - 3 1 1 7 FRANCE, Paris . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 3 3 ) - 1 - 4 9 7 5 1 0 1 0 GERMANY, Bad Homburg . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 9 ) - 6 1 7 2 - 9 2 6 7 0 Munich . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 9 ) - 8 9 - 4 5 0 5 3 0 HONG KONG, Causeway Bay . . . . . . . . . . . . . . . . . . . T E L ( 8 5 ) 2 - 2 9 5 6 - 0 3 8 8 ITALY, Milan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 3 9 ) - 0 2 - 3 8 1 9 6 1 INDIA, New Delhi . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 9 1 ) 1 1 - 6 2 3 - 8 6 2 0 JAPAN, Osaka . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 1 ) 6 - 6 2 4 3 - 3 2 5 0 Tokyo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 1 ) 3 - 3 3 4 6 - 7 6 0 0 KOREA, Seoul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 2 ) 2 - 3 4 6 8 - 2 6 0 0 RUSSIA, Moscow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TEL(7)-095-795-06-22 SWEDEN, Stockholm . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 6 ) 8 - 5 62 - 5 4 0 - 0 0 TAIWAN,Taipei . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 8 6 ) 2 - 8 7 7 3 - 1 5 5 5 UNITED KINGDOM, Frimley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 4 ) 1 2 76 - 8 0 3 1 0 0 Haydock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 4 ) 1 9 4 2 - 2 7 2 8 8 8
es
Advanced Micro Devices reserves the right to make changes in its product without notice in order to improve design or performance characteristics.The performance characteristics listed in this document are guaranteed by specific tests, guard banding, design and other practices common to the industry. For specific testing details, contact your local AMD sales representative.The company assumes no responsibility for the use of any circuits described herein. (c) Advanced Micro Devices, Inc. All rights reserved. AMD, the AMD Arrow logo and combination thereof, are trademarks of Advanced Micro Devices, Inc. Other product names are for informational purposes only and may be trademarks of their respective companies.
Representatives in Latin America
ARGENTINA, Capital Federal Argentina/WW Rep. . . . . . . . . . . . . . . . . . . .54-11)4373-0655 CHILE, Santiago - LatinRep/WWRep. . . . . . . . . . . . . . . . . . . . . . . . . .(+562)264-0993 COLUMBIA, Bogota - Dimser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 5 7 1 ) 4 1 0 - 4 1 8 2 MEXICO, Guadalajara - LatinRep/WW Rep. . . . . . . . . . . . . . . . . . . . ( 5 2 3 ) 8 1 7 - 3 9 0 0 Mexico City - LatinRep/WW Rep. . . . . . . . . . . . . . . . . . . . ( 5 2 5 ) 7 5 2 - 2 7 2 7 Monterrey - LatinRep/WW Rep. . . . . . . . . . . . . . . . . . . . . ( 5 2 8 ) 3 69 - 6 8 2 8 PUERTO RICO, Boqueron - Infitronics. . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 8 7 ) 8 5 1 - 6 0 0 0
One AMD Place, P.O. Box 3453, Sunnyvale, CA 94088-3453 408-732-2400 TWX 910-339-9280 TELEX 34-6306 800-538-8450 http://www.amd.com
(c)2003 Advanced Micro Devices, Inc. 01/03 Printed in USA

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