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| COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 16 Megabit (2M x 8-Bit / 1M x 16-Bit) CMOS 3.0 Volt-Only Boot Sector Flash Memory DISTINCTIVE CHARACTERISTICS Commercial Off The Shelf, up-screened device Single power supply operation -- Full voltage range: 2.7 to 3.6 volt read and write operations for battery-powered applications Manufactured on 200nm process technology Flexible sector architecture -- One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and thirty-one 64 Kbyte sectors (byte mode) -- One 8 Kword, two 4 Kword, one 16 Kword, and thirty-one 32 Kword sectors (word mode) Sector Protection features -- A hardware method of locking a sector to prevent any program or erase operations within that sector -- Sectors can be locked in-system or via programming equipment -- Temporary Sector Unprotect feature allows code changes in previously locked sectors Unlock Bypass Program Command -- Reduces overall programming time when issuing multiple program command sequences Top or bottom boot block configurations available Compatibility with JEDEC standards -- Pinout and software compatible with single-power supply Flash -- Superior inadvertent write protection PERFORMANCE CHARACTERISTICS High performance -- Access times as fast as 70 ns @ Enhanced Temp [/ET] -- Extended temp range available [/XT] (-55C to +125C) Ultra low power consumption (typical values at 5 MHz) -- 200 nA Automatic Sleep mode current -- 200 nA standby mode current -- 9 mA read current -- 20 mA program/erase current Cycling endurance: 1,000,000 cycles per sector typical Data retention: 20 years typical SOFTWARE FEATURES CFI (Common Flash Interface) compliant -- Provides device-specific information to the system, allowing host software to easily reconfigure for different Flash devices Erase Suspend/Erase Resume -- Suspends an erase operation to read data from, or program data to, a sector that is not being erased, then resumes the erase operation Data# Polling and toggle bits -- Provides a software method of detecting program or erase operation completion PACKAGE OPTIONS 48-pin TSOP1 HARDWARE FEATURES Ready/Busy# pin (RY/BY#) -- Provides a hardware method of detecting program or erase cycle completion Hardware reset pin (RESET#) AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 1 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 GENERAL DESCRIPTION The AS29LV016 is a 16 Mbit, 3.0 Volt-only Flash memory organized as 2,097,152 bytes or 1,048,576 words. The word-wide data (x16) appears on DQ15-DQ0; the byte-wide (x8) data appears on DQ7-DQ0. This device is designed to be programmed in-system with the standard system 3.0 volt VCC supply. A 12.0 V VPP or 5.0 VCC are not required for write or erase operations. The device can also be programmed in standard EPROM programmers. The device offers access times of 70 ns, 90 ns and 100 ns allowing high speed microprocessors to operate without wait states. To eliminate bus contention the device has separate chip enable (CE#), write enable (WE#) and output enable (OE#) controls. The device requires only a single 3.0 volt power supply for both read and write functions. Internally generated and regulated voltages are provided for the program and erase operations. The AS29LV016 is entirely command set compatible with the JEDEC single-power-supply Flash standard. Commands are written to the command register using standard microprocessor write timings. Register contents serve as input to an internal state-machine that controls the erase and programming circuitry. Write cycles also internally latch addresses and data needed for the programming and erase operations. Reading data out of the device is similar to reading from other Flash or EPROM devices. Device programming occurs by executing the program command sequence. This initiates the Embedded Program algorithm--an internal algorithm that automatically times the program pulse widths and verifies proper cell margin. The Unlock Bypass mode facilitates faster programming times by requiring only two write cycles to program data instead of four. Device erasure occurs by executing the erase command sequence. This initiates the Embedded Erase algorithm--an internal algorithm that automatically preprograms the array (if it is not AS29LV016 Rev. 2.1 10/08 already programmed) before executing the erase operation. During erase, the device automatically times the erase pulse widths and verifies proper cell margin. The host system can detect whether a program or erase operation is complete by observing the RY/BY# pin, or by reading the DQ7 (Data# Polling) and DQ6 (toggle) status bits. After a program or erase cycle has been completed, the device is ready to read array data or accept another command. 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. Hardware data protection measures include a low VCC detector that automatically inhibits write operations during power transitions. The hardware sector protection feature disables both program and erase operations in any combination of the sectors of memory. This can be achieved in-system or via programming equipment. The Erase Suspend/Erase Resume feature enables the user to put erase on hold for any period of time to read data from, or program data to, any sector that is not selected for erasure. True background erase can thus be achieved. The hardware RESET# pin terminates any operation in progress and resets the internal state machine to reading array data. The RESET# pin may be tied to the system reset circuitry. A system reset would thus also reset the device, enabling the system microprocessor to read the boot-up firmware from the Flash memory. The device offers two power-saving features. When addresses have been stable for a specified amount of time, the device enters the automatic sleep mode. The system can also place the device into the standby mode. Power consumption is greatly reduced in both these modes. Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 2 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 PRODUCT SELECTOR GUIDE Family Part Number Speed Option Voltage Range: Vcc = 2.7-3.6V Max access time, ns (tACC) Max CE# access time, ns (tCE) 70 70 70 AS29LV016 90 90 90 35 100 100 100 40 Max OE# access time, nc (tOE) 30 Note: See AC Characteristics on page 29 for full specifications g BLOCK DIAGRAM RY/BY# VCC VSS Sector Switches Erase Voltage Generator DQ0-DQ15 (A-1) RESET# Input/Output Buffers WE# BYTE# State Control Command Register PGM Voltage Generator Chip Enable Output Enable Logic STB Data Latch CE# OE# STB Y-Decoder Y-Gating VCC Detector Timer Address Latch X-Decoder Cell Matrix A0-A19 AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 3 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 PIN CONFIGURATION A0-A19 = DQ0-DQ14 = DQ15/A-1 = BYTE# CE# OE# WE# RESET# RY/BY# V CC VSS NC = = = = = = = 20 addresses 15 data inputs/outputs DQ15 (data input/output, word mode), A-1 (LSB address input, byte mode) Selects 8-bit or 16-bit mode Chip enable Output enable Write enable Hardware reset pin Ready/Busy output 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 , 20 A0-A19 DQ0-DQ15 (A-1) CE# OE# WE# RESET# BYTE# RY/BY# 16 or 8 = = CONNECTION DIAGRAMS A15 A14 A13 A12 A11 A10 A9 A8 A19 NC WE# RESET# NC NC 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 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 Standard TSOP AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 4 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 ORDERING INFORMATION AS29LV016TRG-70/ET AS29LV016BRG-70/ET AS29LV016TRG-90/ET AS29LV016BRG-90/ET AS29LV016TRG-90/XT AS29LV016BRG-90/XT AS29LV016TRG-100/ET AS29LV016BRG-100/ET AS29LV016TRG-100/XT AS29LV016BRG-100/XT TOP BOOT BOTTOM BOOT TOP BOOT BOTTOM BOOT TOP BOOT BOTTOM BOOT TOP BOOT BOTTOM BOOT TOP BOOT BOTTOM BOOT TSOP1-48 TSOP1-48 TSOP1-48 TSOP1-48 TSOP1-48 TSOP1-48 TSOP1-48 TSOP1-48 TSOP1-48 TSOP1-48 ENHANCED ENHANCED ENHANCED ENHANCED EXTENDED EXTENDED ENHANCED ENHANCED EXTENDED EXTENDED PB-FREE OPTION (WHERE AVAILABLE) AS29LV016TRGR-70/ET TOP BOOT AS29LV016TRGR-70/ET BOTTOM BOOT TAPE / REEL OPTION (WHERE AVAILABLE) .14-14" Reel (32mm TAPE) .7-7" Reel (32mm TAPE) TSOP1-48 TSOP1-48 ENHANCED ENHANCED AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 5 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 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 com-posed of latches that store the commands, along with the address and data information needed to execute the command. The contents of the 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. Table 1: AS29LV016 Device Bus Operations DQ0DQ7 DOUT DIN High-Z High-Z High-Z DIN BYTE# =VIH DOUT DIN High-Z High-Z High-Z X DQ8-DQ15 BYTE# =VIL DQ8-DQ14= High Z, DQ15=A-1 High-Z High-Z High-Z X Operation Read Write Standby Output Disable Reset Sector Protect2 CE# L L Vcc 0.3V L X L OE# L H X H X H WE# H L X H X L RESET# H H Vcc 0.3V H L VID Address1 AIN AIN X X X Sector Address, A6=L, A1=H, A0=L Sector Address, A6=H, A1=H, A0=L AIN Sector Unprotect2 Temporary Sector Unprotect L X H X L X VID VID DIN DIN X DIN X High-Z Legend: L= Logic Low = V IL , H=Logic High=V IH , V ID =12.00.5V, X=Don't Care, A IN =Address In, D IN = Data In, D OUT =Data Out Notes: 1. Addresses are A19:A0 in word mode (BYTE# = V IH ), A19:A-1 in byte mode (BYTE# = V IL ) 2. The sector protect and sector unprotect functions may also be implemented via programming equipment. See Sector Protection / Unprotection on page 11. WORD / BYTE CONFIGURATION The BYTE# pin controls whether the device data I/O pins DQ15-DQ0 operate in the byte or word configuration. If the BYTE# pin is set at logic 1, the device is in word configuration, DQ15-DQ0 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. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 6 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 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. The BYTE# pin determines whether the device outputs array data in words or bytes. 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 on page 17 for more information. Refer to the AC Read Operations on page 29 for timing specifications and to Figure 12, on page 29 for the timing diagram. ICC1 in the DC Characteristics table represents the active current specification for reading array data. An erase operation can erase one sector, multiple sectors, or the entire device. Table 2 on page 9 and Table 3 on page 10 indicate the address space that each sector occupies. A "sector address" consists of the address bits required to uniquely select a sector. The Command Definitions on page 17 has details on erasing a sector or the entire chip, or suspending/resuming the erase operation. After 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 Autoselect Mode on page 11 and Autoselect Command Sequence on page 17 for more information. ICC2 in the DC Characteristics table represents the active current specification for the write mode. AC Characteristics on page 29 contains timing specification tables and timing diagrams for write operations. 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. For program operations, the BYTE# pin determines whether the device accepts program data in bytes or words. See Word Byte Configuration on page 6 for more information. 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. Word Byte Program Command Sequence on page 18 has details on programming data to the device using both standard and Unlock Bypass command sequences. PROGRAM AND ERASE OPERATION STATUS During an erase or program operation, the system may check the status of the operation by reading the status bits on DQ7-DQ0. Standard read cycle timings and ICC read specifications apply. Refer to Write Operation Status on page 22 for more information, and to AC Characteristics on page 29 for timing diagrams. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 7 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 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 (tCE) for read access when the device is in either of these standby modes, before it is ready to read data. If the device is deselected during erasure or programming, the device draws active current until the operation is completed. ICC3 and ICC4 represents the standby current specification shown in the table in DC Characteristics on page 27. RESET#: HARDWARE RESET PIN The RESET# pin provides a hardware method of resetting the device to reading array data. When the system drives the RESET# pin to VIL for at least a period of tRP, the device immediately terminates any operation in progress, tristates all data output pins, and ignores all read/write attempts 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. If RESET# is asserted during a program or erase operation, the RY/BY# pin remains a 0 (busy) until the internal reset operation is complete, which requires a time of tREADY (during Embedded Algorithms). The system can thus monitor RY/BY# to determine whether the reset operation is complete. If RESET# is asserted when a program or erase operation is not executing (RY/BY# pin is 1), the reset operation is completed within a time of tREADY (not during Embedded Algorithms). The system can read data tRH after the RESET# pin returns to VIH.Refer to the tables in AC Characteristics on page 29 for RESET# parameters and to Figure 13, on page 30 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. ICC4 in the DC Characteristics on page 27 represents the automatic sleep mode current specification. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 8 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 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. Table 2: Sector Address Tables (Top Boot Device) Sector Size Address Range (in hexadecimal) Sector A19 A18 A17 A16 A15 A14 A13 A12 (Kbytes / Kwords) Byte Mode (x8) Word Mode (x16) SA0 0 0 0 0 0 X X X 64/32 000000-00FFFF 00000-07FFF SA1 0 0 0 0 1 X X X 64/32 010000-01FFFF 08000-0FFFF SA2 0 0 0 1 0 X X X 64/32 020000-02FFFF 10000-17FFF SA3 0 0 0 1 1 X X X 64/32 030000-03FFFF 18000-1FFFF SA4 0 0 1 0 0 X X X 64/32 040000-04FFFF 20000-27FFF SA5 0 0 1 0 1 X X X 64/32 050000-05FFFF 28000-2FFFF SA6 0 0 1 1 0 X X X 64/32 060000-06FFFF 30000-37FFF SA7 0 0 1 1 1 X X X 64/32 070000-07FFFF 38000-3FFFF SA8 0 1 0 0 0 X X X 64/32 080000-08FFFF 40000-47FFF SA9 0 1 0 0 1 X X X 64/32 090000-09FFFF 48000-4FFFF SA10 0 1 0 1 0 X X X 64/32 0A0000-0AFFFF 50000-57FFF SA11 0 1 0 1 1 X X X 64/32 0B0000-0BFFFF 58000-5FFFF SA12 0 1 1 0 0 X X X 64/32 0C0000-0CFFFF 60000-67FFF SA13 0 1 1 0 1 X X X 64/32 0D0000-0DFFFF 68000-6FFFF SA14 0 1 1 1 0 X X X 64/32 0E0000-0EFFFF 70000-77FFF SA15 0 1 1 1 1 X X X 64/32 0F0000-0FFFFF 78000-7FFFF SA16 1 0 0 0 0 X X X 64/32 100000-10FFFF 80000-87FFF SA17 1 0 0 0 1 X X X 64/32 110000-11FFFF 88000-8FFFF SA18 1 0 0 1 0 X X X 64/32 120000-12FFFF 90000-97FFF SA19 1 0 0 1 1 X X X 64/32 130000-13FFFF 98000-9FFFF SA20 1 0 1 0 0 X X X 64/32 140000-14FFFF A0000-A7FFF SA21 1 0 1 0 1 X X X 64/32 150000-15FFFF A8000-AFFFF SA22 1 0 1 1 0 X X X 64/32 160000-16FFFF B0000-B7FFF SA23 1 0 1 1 1 X X X 64/32 170000-17FFFF B8000-BFFFF SA24 1 1 0 0 0 X X X 64/32 180000-18FFFF C0000-C7FFF SA25 1 1 0 0 1 X X X 64/32 190000-19FFFF C8000-CFFFF SA26 1 1 0 1 0 X X X 64/32 1A0000-1AFFFF D0000-D7FFF SA27 1 1 0 1 1 X X X 64/32 1B0000-1BFFFF D8000-DFFFF SA28 1 1 1 0 0 X X X 64/32 1C0000-1CFFFF E0000-E7FFF SA29 1 1 1 0 1 X X X 64/32 1D0000-1DFFFF E8000-EFFFF SA30 1 1 1 1 0 X X X 64/32 1E0000-1EFFFF F0000-F7FFF SA31 1 1 1 1 1 0 X X 32/16 1F0000-1F7FFF F8000-FBFFF SA32 1 1 1 1 1 1 0 0 8/4 1F8000-1F9FFF FC000-FCFFF SA33 1 1 1 1 1 1 0 1 8/4 1FA000-1FBFFF FD000-FDFFF SA34 1 1 1 1 1 1 1 X 16/8 1FC000-1FFFFF FE000-FFFFF Note: Address range is A19:A-1 in byte mode and A19:A0 in word mode. See Word/Byte Configuration on page 6. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 9 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 Table 3: Sector Address Tables (Bottom Boot Device) Sector Size Address Range (in hexadecimal) Sector A19 A18 A17 A16 A15 A14 A13 A12 (Kbytes / Kwords) Byte Mode (x8) Word Mode (x16) SA0 0 0 0 0 0 0 0 X 16/8 000000-003FFF 00000-01FFF SA1 0 0 0 0 0 0 1 0 8/4 004000-005FFF 02000-02FFF SA2 0 0 0 0 0 0 1 1 8/4 006000-007FFF 03000-03FFF SA3 0 0 0 0 0 1 X X 32/16 008000-00FFFF 04000-04FFF SA4 0 0 0 0 1 X X X 64/32 010000-01FFFF 08000-0FFFF SA5 0 0 0 1 0 X X X 64/32 020000-02FFFF 10000-17FFF SA6 0 0 0 1 1 X X X 64/32 030000-03FFFF 18000-1FFFF SA7 0 0 1 0 0 X X X 64/32 040000-04FFFF 20000-27FFF SA8 0 0 1 0 1 X X X 64/32 050000-05FFFF 28000-2FFFF SA9 0 0 1 1 0 X X X 64/32 060000-06FFFF 30000-37FFF SA10 0 0 1 1 1 X X X 64/32 070000-07FFFF 38000-3FFFF SA11 0 1 0 0 0 X X X 64/32 080000-08FFFF 40000-47FFF SA12 0 1 0 0 1 X X X 64/32 090000-09FFFF 48000-4FFFF SA13 0 1 0 1 0 X X X 64/32 0A0000-0AFFFF 50000-57FFF SA14 0 1 0 1 1 X X X 64/32 0B0000-0BFFFF 58000-5FFFF SA15 0 1 1 0 0 X X X 64/32 0C0000-0CFFFF 60000-67FFF SA16 0 1 1 0 1 X X X 64/32 0D0000-0DFFFF 68000-6FFFF SA17 0 1 1 1 0 X X X 64/32 0E0000-0EFFFF 70000-77FFF SA18 0 1 1 1 1 X X X 64/32 0F0000-0FFFFF 78000-7FFFF SA19 1 0 0 0 0 X X X 64/32 100000-10FFFF 80000-87FFF SA20 1 0 0 0 1 X X X 64/32 110000-11FFFF 88000-8FFFF SA21 1 0 0 1 0 X X X 64/32 120000-12FFFF 90000-97FFF SA22 1 0 0 1 1 X X X 64/32 130000-13FFFF 98000-9FFFF SA23 1 0 1 0 0 X X X 64/32 140000-14FFFF A0000-A7FFF SA24 1 0 1 0 1 X X X 64/32 150000-15FFFF A8000-AFFFF SA25 1 0 1 1 0 X X X 64/32 160000-16FFFF B0000-B7FFF SA26 1 0 1 1 1 X X X 64/32 170000-17FFFF B8000-BFFFF SA27 1 1 0 0 0 X X X 64/32 180000-18FFFF C0000-C7FFF SA28 1 1 0 0 1 X X X 64/32 190000-19FFFF C8000-CFFFF SA29 1 1 0 1 0 X X X 64/32 1A0000-1AFFFF D0000-D7FFF SA30 1 1 0 1 1 X X X 64/32 1B0000-1BFFFF D8000-DFFFF SA31 1 1 1 0 0 X X X 64/32 1C0000-1CFFFF E0000-E7FFF SA32 1 1 1 0 1 X X X 64/32 1D0000-1DFFFF E8000-EFFFF SA33 1 1 1 1 0 X X X 64/32 1E0000-1EFFFF F0000-F7FFF SA34 1 1 1 1 1 X X X 64/32 1F0000-1FFFFF F8000-FFFFF Note: Address range is A19:A-1 in byte mode and A19:A0 in word mode. See Word/Byte Configuration on page 6. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 10 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 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 programming algorithm. However, the autoselect codes can also be accessed in-system through the command register. When using programming equipment, the autoselect mode requires VID (11.5 V to 12.5 V) on address pin A9. Address pins A6, A1, and A0 must be as shown in Table 4 below. In addition, when verifying sector protection, the sector address must appear on the appropriate highest order address bits (see Table 2 on page 9 and Table 3 on page 10). Table 4, immediately below, 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 Table 9 on page 21. This method does not require VID. See Command Definitions on page 17 for details on using the autoselect mode. Table 4: AS29LV016 Autoselect Codes (High Voltage Method) Description Manufacturer ID: Spansion Device ID: S29AL016D (Top Boot Block) Device ID: S29AL016D (Bottom Boot Block) Sector Protection Verification Mode CE# L L L L L L OE# L L L L L L WE# H H H H H H A19 to A11 to A12 A10 X X X X X SA X X X X X X A9 VID VID VID VID A8 to A7 X X X X A6 L L L L A5 to A4 X X X X A3 to A2 L L L L A1 L L L H A0 L H H L DQ8 to DQ15 X 22h X 22h X X X DQ7 to DQ0 01h C4h C4h 49h 49h 01h (protected) 00h (unprotected) Word Byte Word Byte L= Logic Low = V IL , H=Logic High=V IH , SA = Sector Address, X=Don't Care Note: The autoselect codes may also be accessed in-system via command sequences. See Table 9 on page 21. SECTOR PROTECTION / UNPROTECTION The hardware sector protection feature disables both program and erase operations in any sector. The hardware sector unprotection feature re-enables both program and erase operations in previously protected sectors. The device is shipped with all sectors unprotected. It is possible to determine whether a sector is protected or unprotected. See Autoselect Mode above for details. Sector protection/unprotection can be implemented via two methods. The primary method requires VID on the RESET# pin only, and can be implemented either in-system or via programming equipment. Figure 2, on page 13 shows the algorithms and Figure 22, on page 36 shows the timing diagram. This method uses standard microprocessor bus cycle timing. For sector unprotect, all unprotected sectors must first be protected prior to the first sector unprotect write cycle. The alternate method intended only for programming equipment requires VID on address pin A9 and OE#. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 11 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 TEMPORARY SECTOR UNPROTECT This feature allows temporary unprotection of previously protected sectors to change data in-system. The Sector Unprotect mode is activated by setting the RESET# pin to VID. During this mode, formerly protected sectors can be programmed or erased by selecting the sector addresses. Once VID is removed from the RESET# pin, all the previously protected sectors are protected again. Figure 1 shows the algorithm, and Figure 21, on page 35 shows the timing diagrams, for this feature. START RESET# = VID (Note 1) Perform Erase or Program Operations RESET# = VIH Temporary Sector Unprotect Completed (Note 2) Notes: 1. All protected sectors unprotected. 2. All previously protected sectors are protected once again. Figure 1. Temporary Sector Unprotect Operation AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 12 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 START PLSCNT = 1 RESET# = VID Wait 1 s Protect all sectors: The indicated portion of the sector protect algorithm must be performed for all unprotected sectors prior to issuing the first sector unprotect address START PLSCNT = 1 RESET# = VID Wait 1 s Temporary Sector Unprotect Mode No First Write Cycle = 60h? Yes Set up sector address Sector Protect: Write 60h to sector address with A6 = 0, A1 = 1, A0 = 0 Wait 150 s Verify Sector Protect: Write 40h to sector address with A6 = 0, A1 = 1, A0 = 0 Read from sector address with A6 = 0, A1 = 1, A0 = 0 No No First Write Cycle = 60h? Yes All sectors protected? Yes Set up first sector address Sector Unprotect: Write 60h to sector address with A6 = 1, A1 = 1, A0 = 0 Temporary Sector Unprotect Mode Increment PLSCNT Reset PLSCNT = 1 Wait 15 ms Verify Sector Unprotect: Write 40h to sector address with A6 = 1, A1 = 1, A0 = 0 No No PLSCNT = 25? Yes Data = 01h? Increment PLSCNT Yes No Yes No Read from sector address with A6 = 1, A1 = 1, A0 = 0 Set up next sector address Device failed Protect another sector? No Remove VID from RESET# PLSCNT = 1000? Yes Data = 00h? Yes Device failed Write reset command Last sector verified? Yes No Sector Protect Algorithm Sector Protect complete Sector Unprotect Algorithm Remove VID from RESET# Write reset command Sector Unprotect complete Figure 2. AS29LV016 Rev. 2.1 10/08 In-System Sector Protect/Unprotect Algorithms Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 13 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 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 IDindependent, 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 in word mode (or address AAh in byte mode), any time the device is ready to read array data. The system can read CFI information at the addresses given in Tables 5-8. In word mode, the upper address bits (A7-MSB) must be all zeros. 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 5-8. The system must write the reset command to return the device to the autoselect mode. Table 5: CFI Query Identification String Addresses (Word Mode) 10h 11h 12h 13h 14h 15h 16h 17h 18h 19h 1Ah Addresses (Byte Mode) 20h 22h 24h 26h 28h 2Ah 2Ch 2Eh 30h 32h 34h Data 0051h 0052h 0059h 0002h 0000h 0040h 0000h 0000h 0000h 0000h 0000h 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) AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 14 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 Table 6: System Interface String Addresses (Word Mode) 1Bh 1Ch 1Dh 1Eh 1Fh 20h 21h 22h 23h 24h 25h 26h Addresses (Byte Mode) 36h 38h 3Ah 3Ch 3Eh 40h 42h 44h 46h 48h 4Ah 4Ch Data 0027h 0036h 0000h 0000h 0004h 0000h 000Ah 0000h 0005h 0000h 0004h 0000h Description VCC Min. (write/erase) D7-D4:volt, D3-D0L 100 millivolt VCC Max. (write/erase) D7-D4:volt, D3-D0L 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) Table 7: Device Geometry Definition Addresses (Word Mode) 27h 28h 29h 2Ah 2Bh 2Ch 2Dh 2Eh 2Fh 30h 31h 32h 33h 34h 35h 36h 37h 38h 39h 3Ah 3Bh 3Ch AS29LV016 Rev. 2.1 10/08 Addresses (Byte Mode) 4Eh 50h 52h 54h 56h 58h 5Ah 5Ch 5Eh 60h 62h 64h 66h 68h 6Ah 6Ch 6Eh 70h 72h 74h 76h 78h Data 0015h 0002h 0000h 0000h 0000h 0004h 0000h 0000h 0040h 0000h 0001h 0000h 0020h 0000h 0000h 0000h 0080h 0000h 001Eh 0000h 0000h 0001h Description 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 Erase Block Region 1 Information (refer to the CFI specification or CFI publication 100) N Erase Block Region 2 Information Erase Block Region 3 Information Erase Block Region 4 Information Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 15 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 Table 8: Primary Vendor-Specific Extended Query Addresses (Word Mode) 40h 41h 42h 43h 44h 45h 46h 47h 48h 49h 4Ah 4Bh 4Ch Addresses (Byte Mode) 80h 82h 84h 86h 88h 8Ah 8Ch 8Eh 90h 92h 94h 96h 98h Data 0050h 0052h 0049h 0031h 0030h 0000h 0002h 0001h 0001h 0004h 0000h 0000h 0000h Description Query-unique ASCII string "PRI" Major version number, ASCII Major version number, ASCII Address Sensitive Unlock 0=Required, 1=Not Required Erase Suspend 0=Not Supported, 1=To Read Only, 2=To Read and Write Sector Protect 0=Not Supported, X=Number of Sectors Per Group Sector Temorary Unprotect 00=Not Supported, 01=Supported Sector Protect / Unprotect Scheme 01=29F040 mode, 02=29F016 mode, 03=29F400 mode, 04=29LV800A mode Simultaneous Operation 00=Not Supported, 01=Supported Burst Mode Type 00=Not Supported, 01= Supported Page Mode Type 00=Not Supported, 01=4 Word Page, 02= 8 Word Page HARDWARE DATA PROTECTION The command sequence requirement of unlock cycles for programming or erasing provides data protection against inadvertent writes (refer to Table 9 on page 21 for command definitions). In addition, the following 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. LOW VCC WRITE INHIBIT When VCC is less than VLKO, 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. 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 VCC is greater than VLKO. AS29LV016 Rev. 2.1 10/08 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# = VIH. 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 reading array data on power-up. Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 16 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 COMMAND DEFINITIONS Writing specific address and data commands or sequences into the command register initiates device operations. Table 9 on page 21 defines the valid register command sequences. Writing incorrect address and data values or writing them in the improper sequence resets 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 appropriate timing diagrams in AC Characteristics on page 29. 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 reading array data (also applies to programming in Erase Suspend 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 reading array data (also applies to autoselect during Erase Suspend). If DQ5 goes high during a program or erase operation, writing the reset command returns the device to reading array data (also applies during Erase Suspend). 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 also 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 mode. The system can read array data using the standard read timings, except that if it reads at an address within erasesuspended sectors, the device outputs status data. After completing a programming operation in the Erase Suspend mode, the system may once again read array data with the same exception. See Erase Suspend/Erase Resume Commands on page 20 for more information on this mode. The system must issue the reset command to re-enable the device for reading array data if DQ5 goes high, or while in the autoselect mode. See Reset Command, next. See also Requirements for Reading Array Data on page 7 for more information. The Read Operations on page 29 provides the read parameters, and Figure 12, on page 29 shows the timing diagram. AUTOSELECT COMMAND SEQUENCE The autoselect command sequence allows the host system to access the manufacturer and devices codes, and determine whether or not a sector is protected. Table 9 on page 21 shows the address and data requirements. This method is an alternative to that shown in Table 4 on page 11, which is intended for PROM programmers and requires VID on address bit A9. The autoselect command sequence is initiated by writing two unlock cycles, followed by the autoselect command. The device then enters the autoselect mode, and the system may read at any address any number of times, without initiating another command sequence. A read cycle at address XX00h retrieves the manufacturer code. A read cycle at address XX01h returns the device code. A read cycle containing a sector address (SA) and the address 02h in word mode (or 04h in byte mode) returns 01h if that sector is protected, or 00h if it is unprotected. Refer to Table 2 on page 9 and Table 3 on page 10 for valid sector addresses. The system must write the reset command to exit the autoselect mode and return to reading array data. RESET COMMAND Writing the reset command to the device resets the device to reading array data. Address bits are don't care 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 reading array data. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 17 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 WORD/BYTE PROGRAM COMMAND SEQUENCE The system may program the device by word or byte, depending on the state of the BYTE# pin. 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 next, which in turn initiate the Embedded Program algorithm. The system is not required to provide further controls or timings. The device automatically generates the program pulses and verifies the programmed cell margin. Table 9 on page 21 shows the address and data requirements for the byte program command sequence. When the Embedded Program algorithm is complete, the device then returns to reading array data and addresses are no longer latched. The system can determine the status of the program operation by using DQ7, DQ6, or RY/BY#. See Write Operation Status on page 22 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 programming operation. The Byte Program command sequence should be reinitiated once the device has reset to reading array data, to ensure data integrity. Programming is allowed in any sequence and across sector boundaries. A bit cannot be programmed from a 0 back to a 1. Attempting to do so may halt the operation and set DQ5 to 1, or cause the Data# Polling algorithm 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. Embedded Program algorithm in progress This mode dispenses with the initial two unlock cycles required in the standard program command sequence, resulting in faster total programming time. Table 9 on page 21 shows 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 the data 00h. Addresses are don't care for both cycles. The device then returns to reading array data. Figure 3 illustrates the algorithm for the program operation. See Erase / Program Operations on page 32 for parameters, and to Figure 16, on page 33 for timing diagrams. START Write Program Command Sequence Data Poll from System Verify Data? No Yes No UNLOCK BYPASS COMMAND SEQUENCE The unlock bypass feature allows the system to program bytes or 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. AS29LV016 Rev. 2.1 10/08 Increment Address Last Address? Yes Programming Completed Note: See Table 9 on page 21 for program command sequence. Figure 3. Program Operation Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 18 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 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. Table 9 on page 21 shows the address and data requirements for the chip erase command sequence. Any commands written to the chip during the Embedded Erase algorithm are ignored. Note that a hardware reset during the chip erase operation immediately terminates the operation. The Chip Erase command sequence should be reinitiated once the device has returned to reading array data, to ensure data integrity. The system can determine the status of the erase operation by using DQ7, DQ6, DQ2, or RY/BY#. See Write Operation Status on page 22 for information on these status bits. When the Embedded Erase algorithm is complete, the device returns to reading array data and addresses are no longer latched. Figure 4, on page 20 illustrates the algorithm for the erase operation. See Erase / Program Operations on page 32 for parameters, and Figure 17, on page 33 for timing diagrams. After the command sequence is written, a sector erase time-out of 50 s begins. 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 the last address and command might not be accepted, and erasure may begin. It is recommended that processor interrupts be disabled during this time to ensure all commands are accepted. The interrupts can be reenabled after the last Sector Erase command is written. If the time between additional sector erase commands can be assumed to be less than 50 s, the system need not monitor DQ3. Any command other than Sector Erase or Erase Suspend during the time-out period resets the device to reading array data. The system must rewrite the command sequence and any additional sector addresses and commands. The system can monitor DQ3 to determine if the sector erase timer has timed out. (See DQ3: Sector Erase Timer on page 25.) The time-out begins from the rising edge of the final WE# pulse in the command sequence. Once the sector erase operation has begun, only the Erase Suspend command is valid. All other commands are ignored. Note that a hardware reset during the sector erase operation immediately terminates the operation. The Sector Erase command sequence should be reinitiated once the device has returned to reading array data, to ensure data integrity. 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 using DQ7, DQ6, DQ2, or RY/ BY#. (Refer to Write Operation Status on page 22 for information on these status bits.) Figure 4 illustrates the algorithm for the erase operation. Refer to Erase / Program Operations on page32 for parameters, and to Figure 17, on page 33 for timing diagrams. 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 write cycles are then followed by the address of the sector to be erased, and the sector erase command. Table 9 on page 21 shows the address and data requirements for the sector erase command sequence. The device does not require the system to preprogram the memory prior to erase. The Embedded Erase algorithm automatically programs and verifies the sector for an all zero data pattern prior to electrical erase. The system is not required to provide any controls or timings during these operations. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 19 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 ERASE SUSPEND / ERASE RESUME COMMANDS The Erase Suspend command 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. Writing the Erase Suspend command during the Sector Erase timeout immediately terminates the time-out period and suspends the erase operation. Addresses are don't-cares when writing the Erase Suspend command. When the Erase Suspend command is written during a sector erase operation, the device requires a 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 system can read array data from or program data to any sector not selected for erasure. (The device "erase suspends" all sectors selected for erasure.) Normal read and write timings and command definitions apply. Reading at any address within erase-suspended sectors produces status data 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. See Write Operation Status on page 22 for information on these status bits. After an erase-suspended program operation is complete, the system can once again read array data within nonsuspended sectors. 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 on page 22 for more information. The system may also write the autoselect command sequence when the device is in the Erase Suspend mode. The device allows reading autoselect codes even at addresses within erasing sectors, since the codes are not stored in the memory array. When the device exits the autoselect mode, the device reverts to the Erase Suspend mode, and is ready for another valid operation. See Autoselect Command Sequence on page 17 for more information. The system must write the Erase Resume command (address bits are don't care) to exit the erase suspend mode and continue the sector erase operation. Further writes of the Resume command are ignored. Another Erase Suspend command can be written after the device has resumed erasing. START Write Erase Command Sequence Data Poll from System Embedded Erase algorithm in progress No Data = FFh? Yes Erasure Completed Notes: 1. See Table 9 on page 21 for erase command sequence. 2. See DQ3: Sector Erase Timer on page 25 for more information. Figure 4. Erase Operation AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 20 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 TABLE 9: COMMAND DEFINITIONS Command Sequence1 Read6 Reset7 First Addr Data RA RD XXX F0 555 AA AAA 555 AA AAA 555 AA AAA 555 4 Byte CFI Query10 Program Unlock Bypass Unlock Bypass Program11 Unlock Bypass Reset12 Chip Erase Sector Erase Erase Suspend13 Erase Resume14 Word Byte Word Byte Word Byte 1 4 3 2 2 Word Byte Word Byte 6 6 1 1 AAA 55 AA 555 AAA 555 AAA XXX XXX 555 AAA 555 AAA XXX XXX 98 AA AA A0 90 AA AA B0 30 2AA 555 2AA 555 PA XXX 2AA 555 2AA 555 55 55 PD F0 55 55 555 AAA 555 AAA 80 80 555 AAA 555 AAA AA AA 2AA 555 2AA 555 55 55 555 AAA SA 10 30 555 AAA 555 AAA A0 20 PA PD AA 555 Second Addr Data Bus Cycles2-5 Third Fourth Addr Data Addr Data Cycles Fifth Addr Data Sixth Addr Data 1 1 Manufacturer ID Autoselect8 Device ID, Top Boot Block Device ID, Bottom Boot Block Sector Protect Verify9 Word Byte Word Byte Word Byte Word 4 4 4 2AA 555 2AA 555 2AA 555 2AA 55 55 55 555 AAA 555 AAA 555 AAA 555 90 90 90 X00 X01 X02 X01 X02 (SA) X02 (SA) X04 01 22C4 C4 2249 49 XX00 XX01 00 01 55 AAA 90 Legend: X = Don't care RA = Address of the memory location to be read. RD = Data read from location RA during read operation. PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the WE# or CE# pulse, whichever happens later. PD = Data to be programmed at location PA. Data latches on the rising edge of WE# or CE# pulse, whichever happens first. SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A19-A12 uniquely select any sector. Note: 1. See Table 1 for description of bus operations. 2. All values are in hexadecimal. 3. Except for the read cycle and the fourth cycle of the autoselect command sequence, all bus cycles are write cycles. 4. Data bits DQ15-DQ8 are don't cares for unlock and command cycles. 5. Address bits A19-A11 are don't cares for unlock and command cycles, unless SA or PA required. 6. No unlock or command cycles required when reading array data. 7. The Reset command is required to return to reading array data when device is in the autoselect mode, or if DQ5 goes high (while the device is providing status data). 8. The fourth cycle of the autoselect command sequence is a read cycle. 9. The data is 00h for an unprotected sector and 01h for a protected sector. See "Autoselect Command Sequence" for more information. 10. Command is valid when device is ready to read array data or when device is in autoselect mode. 11. The Unlock Bypass command is required prior to the Unlock Bypass Program command. 12. The Unlock Bypass Reset command is required to return to reading array data when the device is in the unlock bypass mode. F0 is also acceptable. 13. 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. 14. The Erase Resume command is valid only during the Erase Suspend mode. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 21 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 WRITE OPERATION STATUS The device provides several bits to determine the status of a write operation: DQ2, DQ3, DQ5, DQ6, DQ7, and RY/BY#. Table 10 on page 25 and the following subsections describe the functions of these bits. DQ7, RY/BY#, and DQ6 each offer a method for determining whether a program or erase operation is complete or in progress. These three bits are discussed first. When the system detects DQ7 has changed from the complement to true data, it can read valid data at DQ7- DQ0 on the following read cycles. This is because DQ7 may change asynchronously with DQ0-DQ6 while Output Enable (OE#) is asserted low. Figure 18, on page 34, illustrates this. Table 10 on page 25 shows the outputs for Data# Polling on DQ7. Figure 5 below shows the Data# Polling algorithm. START DQ7: DATA# POLLING The Data# Polling bit, DQ7, indicates to the host system whether an Embedded 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 program or erase 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 reading array data. 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. This is analogous to the complement/true datum output described for the Embedded Program algorithm: the erase function changes all the bits in a sector to 1; prior to this, the device outputs the complement, or 0. 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 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. 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 an address within any sector selected for erasure. 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 5. Data# Polling Algorithm AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 22 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 RY/BY#: READY/BUSY# The RY/BY# is a dedicated, open-drain output pin that 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 ready to read array data (including during the Erase Suspend mode), or is in the standby mode. Table 10 on page 25 shows the outputs for RY/BY#. Figures: Figure 12, on page 29, Figure 13, on page 30, Figure 16, on page 33 and Figure 17, on page 33 shows RY/BY# for read, reset, program, and erase operations, respectively. 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 10 on page 25 shows the outputs for Toggle Bit I on DQ6. Figure 6, on page 24 shows the toggle bit algorithm in flowchart form, and Reading Toggle Bits DQ6/ DQ2 on page 24 explains the algorithm. Figure 19, on page 34 shows the toggle bit timing diagrams. Figure 20, on page 5 shows the differences between DQ2 and DQ6 in graphical form. See also the subsection on DQ2: Toggle Bit II below. DQ2: TOGGLE BIT II 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 10 on page 25 to compare outputs for DQ2 and DQ6. Figure 6, on page 24 shows the toggle bit algorithm in flowchart form, and the section Reading Toggle Bits DQ6/ DQ2 on page 24 explains the algorithm. See also the DQ6: Toggle Bit I subsection. Figure 19, on page 34 shows the toggle bit timing diagram. Figure 20, on page 35 shows the differences between DQ2 and DQ6 in graphical form. 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. 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 on page 22). AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 23 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 READING TOGGLE BITS DQ6/DQ2 Refer to Figure 6 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 complete 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 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 6). START Read DQ7-DQ0 Read DQ7-DQ0 (Note 1) Toggle Bit = Toggle? Yes No No DQ5 = 1? Yes (Notes 1,2) Read DQ7-DQ0 Twice Toggle Bit = Toggle? No Yes Program/Erase Operation Not Complete, Write Reset Command Program/Erase Operation Complete Notes: 1. Read toggle bit twice to determine whether or not it is toggling. See text. 2. Recheck toggle bit because it may stop toggling as DQ5 changes to 1. See text. Figure 6. Toggle Bit Algorithm AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 24 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 DQ5: EXCEEDED TIMING LIMITS DQ5 indicates whether the program or erase time has exceeded a specified internal pulse count limit. Under these conditions DQ5 produces a 1. This is a failure condition that indicates the program or erase cycle was not successfully completed. The DQ5 failure condition may appear if the system tries to program a 1 to a location that is 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 operation has exceeded the timing limits, DQ5 produces a 1. Under both these conditions, the system must issue the reset command to return the device to reading array data. DQ3: SECTOR ERASE TIMER After writing a sector erase command sequence, the system may read DQ3 to determine whether or not an erase operation 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 command. When the time-out is complete, DQ3 switches from 0 to 1. The system may ignore DQ3 if the system can guarantee that the time between additional sector erase commands will always be less than 50 s. See also the Sector Erase Command Sequence section on page 19. After the sector erase command sequence is written, the system should read the status on DQ7 (Data# Polling) or DQ6 (Toggle Bit I) to ensure the device has accepted the command sequence, and then read DQ3. If DQ3 is 1, the internally controlled erase cycle has begun; all further commands (other than 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 10 shows the outputs for DQ3. Table 10: Write Operation Status Operation Standard Embedded Program Algorithm Mode Embedded Erase Algorithm Reading within Erase Erase Suspended Sector Suspend Reading within Non-Erase Mode Suspended Sector Erase-Suspend-Program DQ72 DQ7# 0 1 Data DQ7# DQ6 Toggle Toggle No Toggle Data Toggle DQ11 0 0 0 Data 0 DQ3 N/A 1 N/A Data N/A DQ22 RY/BY# No Toggle 0 Toggle 0 Toggle Data N/A 1 1 0 Notes: 1. DQ5 switches to 1 when and Embedded Program or Embedded Erase operation has exceeded the maximum timing limits. See DQ5: Exceeded Timing Limits for more information. 2. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further details. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 25 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 ABSOLUTE MAXIMUM RATINGS Storage Temperature Plastic Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to +150C Ambient Temperature with Power Applied . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . -65C to +125C Voltage with Respect to Ground VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to +4.0 V A9, OE#, and RESET#2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to +12.5 V All other pins1 . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.5 V to VCC+0.5 V Output Short Circuit Current3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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 VSS to -2.0 V for periods of up to 20 ns. See Figure 7 below. Maximum DC voltage on input or I/O pins is VCC +0.5 V. During voltage transitions, input or I/O pins may overshoot to VCC +2.0 V for periods up to 20 ns. See Figure 8 below. 2.Minimum DC input voltage on pins A9, OE#, and RESET# is -0.5 V. During voltage transitions, A9, OE#, and RESET# may overshoot VSS to -2.0 V for periods of up to 20 ns. See Figure 7 below. Maximum DC input voltage on pin A9 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. OPERATING RANGES Enhanced (/ET) Devices Ambient Temperature (TA). . . . . . . . . . . . . . . . . . . . . . . . .. .-40C to +105C Extended (/XT) Devices Ambient Temperature (TA). . . . . . . . . . . . . . . . . . . . .. . . . . .-55C to +125C VCC Supply Voltages VCC for standard voltage range. . . . . . . . . . . . . . . . . . . . . . . . 2.7 V to 3.6 V Operating ranges define those limits between which the functionality of the device is guaranteed. 20 ns +0.8 V -0.5 V -2.0 V 20 ns 20 ns VCC +2.0 V VCC +0.5 V 2.0 V 20 ns 20 ns Figure 7. Maximum Negative Overshoot Waveform AS29LV016 Rev. 2.1 10/08 Figure 8. Maximum Positive Overshoot Waveform Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 26 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 DC CHARACTERISTICS CMOS Compatible Parameter ILI ILIT ILO Description Input Load Current A9 Input Load Current Output Leakage Current Test Conditions VIN=VSS to VCC, VCC=VCCmax VCC=VCCmax; A9=12.5V VOUT=VSS to VCC, VCC=VCCmax CE#=VIL, OE#-VIH, Byte Mode ICC1 VCC Active Read Current 1,2 CE#=VIL, OE#-VIH, Word Mode ICC2 ICC3 ICC4 ICC5 VIL VIH VID VOL VOH1 VOH2 VLKO VCC Active Write Current 2,3,5 VCC Standby Current 2,4 Min Typ Max 1.0 35 1.0 Unit A 10 MHz 5 MHz 1 MHz 10 MHz 5 MHz 1 MHz CE#=VIL, OE#=VIH CE#, RESET#=VCC 0.3V RESET#=VSS 0.3V VIH=VCC 0.3V; VIL=VSS 0.3V -0.5 0.7 x VCC VCC=3.3V IOL=4.0 mA, VCC=VCCmin IOH=-2.0 mA, VCC=VCCmin IOH=-100 A, VCC=VCCmin 2.4 VCC-0.4 2.3 11.5 15 9 2 18 9 2 20 0.2 0.2 0.2 30 16 4 35 16 4 35 5 0.8 VCC + 0.3 12.5 0.45 mA mA A A A VCC Standby Current During Reset 2,4 Automatic Sleep Mode 2,4,6 Input Low Voltage Input High Voltage Voltage for Autoselect and Temporary Sector Unprotect Output Low Voltage Output High Voltage Low VCC Lock-Out Voltage V 2.5 Notes: 1.The ICC current listed is typically less than 2 mA/MHz, with OE# at VIH. Typical VCC is 3.0 V. 2.Maximum ICC specifications are tested with VCC = VCCmax. 3.ICC active while Embedded Erase or Embedded Program is in progress. 4.At extended temperature range (>+85C), typical current is 5 A and maximum current is 10 A. 5.Automatic sleep mode enables the low power mode when addresses remain stable for tACC + 30 ns. Typical sleep mode current is 200 nA. 6.Not 100% tested. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 27 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 TEST CONDITIONS 3.3 V Device Under Test CL 6.2 k 2.7 k Note: Diodes are IN3064 or equivalent Figure 10. Test Setup Table 11: Test Specifications Test Condition Output Load Output Load Capacitance, CL (including jig capacitance) Input Rise and Fall Times Input Pulse Levels Input timing measurement reference levels Output timing meausrement reference levels 70 30 90 100 1 TTL gate 100 100 5 0.0 or VCC 0.5 VCC 0.5 VCC Unit pF ns V 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 VCC 0.0 V Input 0.5 VCC Measurement Level 0.5 VCC Output Figure 11. AS29LV016 Rev. 2.1 10/08 Input Waveforms and Measurement Levels Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 28 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 AC CHARACTERISTICS Read Operations Parameter JEDEC Std tAVAV tAVQV tELQV tGLQV tEHQZ tGHQZ tRC tACC tCE tOE tDF tDF tSR/W tOEH Description Read Cycle Time1 Address to Output Delay Chip Enable to Output Delay Output Enable to Output Delay Chip Enable to Ouput High Z 1 1 Test Setup Min CE#=VIL, OE#=VIL OE#=VIL Max Max Max Max Max Min Min Min Min 70 70 70 70 30 25 25 Speed Options 90 100 90 90 90 35 30 30 20 0 10 0 100 100 100 40 35 Unit ns 35 Output Enable to Output High Z Latency Between Read and Write Operations Output Enable Hold Time1 Read Toggle and Data# Polling tAXQX tOH Output Hold Time From Addresses, CE# or OE#, Whichever Occurs First1 Notes: 1. Not 100% Tested 2. See Figure 10, on page 28 and Table 11 on page 28 for test specifications. tRC Addresses CE# tOE tOEH WE# HIGH Z Outputs RESET# RY/BY# Output Valid tCE tOH HIGH Z tDF Addresses Stable tACC OE# tSR/W 0V Figure 12. Read Operations Timings AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 29 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 AC CHARACTERISTICS Hardware Reset (RESET#) Parameter JEDEC Std tREADY tREADY tRP tRH tRPD tRB Description RESET# Pin Low (During Embedded Algorithms) to Read or Write 1 RESET# Pin Low (NOT During Embedded Algorithms) to Read or Write 1 RESET# Pulse Width RESET# High Time Before Read1 RESET# Low to Standby Mode RY/BY# Recovery Time Test Setup All Speed Options Max Max 20 500 500 Min 50 20 0 s ns ns Unit s Note: 1. 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 13. AS29LV016 Rev. 2.1 10/08 RESET# Timings Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 30 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 AC CHARACTERISTICS Word / Byte Configuration (BYTE#) Parameter JEDEC Std Description tELFL / tELFH CE# to BYTE# Switching Low or High tFLQZ BYTE# Switching Low to Output HIGH Z tFHQV BYTE# Switching High to Output Active Test Setup Max Max Min 70 25 70 Speed Options 90 100 5 30 90 35 100 Unit ns CE# OE# BYTE# tELFL DQ0-DQ14 BYTE# Switching from word to byte mode Data Output (DQ0-DQ14) Data Output (DQ0-DQ7) Address Input DQ15/A-1 DQ15 Output tFLQZ tELFH BYTE# BYTE# Switching from byte to word mode DQ0-DQ14 Data Output (DQ0-DQ7) Address Input tFHQV Data Output (DQ0-DQ14) DQ15 Output DQ15/A-1 Figure 14. BYTE# Timings for Read Operations AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 31 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 AC CHARACTERISTICS CE# The falling edge of the last W WE# BYTE# tSET (tAS) tHOLD (tAH) Note: Refer to the Erase/Program Operations table for tAS and tAH specifications. Figure 15. BYTE# Timings for Write Operations Erase / Program Operations Parameter JEDEC tAVAV tAVWL tWLAX tDVWH tWHDX Std tWC tAS tAH tDS tDH tOES tGHWL tELWL tWHEH tWLWH tWHWL tGHWL tCS tCH tWP tWPH tSR/W tWHWH1 tWHWH2 tWHWH1 tWHWH2 tVCS tRB tBUSY Description Write Cycle Time1 Address Setup Time Address Hold Time Data Setup Time Data Hold Time Output Enagle Setup Time Read Recovery Time Before Write, (OE# High to WE# Low) CE# Setup Time CE# Hold Time Write Pulse Width Write Pulse Width High Latency Between Read and Write Operations Programming Operation2 Sector Erase Operation2 VCC Setup Time1 Recovery Time from RY / BY# Program / Erase Valid to RY / BY# Delay Byte Word Typ Min 35 Test Setup 70 70 Speed Options 90 90 0 45 45 0 0 0 0 0 35 30 20 5 7 0.7 Min Max 50 0 90 s sec s ns ns 55 100 100 Unit Notes: 1. Not 100% Tested. 2. See Erase and Programming Performance on page 38 for more information. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 32 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 AC CHARACTERISTICS Program Command Sequence (last two cycles) tAS tWC Read Status Data (last two cycles) Addresses 555h PA PA PA tAH CE# tCH OE# tWP tWHWH1 WE# tCS tWPH tDS tDH PD tBUSY Data A0h Status DOUT tRB RY/BY# tVCS VCC 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 16. Program Operation Timings 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: Notes: 1. SA sector address (for Sector Erase), VA = 1.SA = sector=address (for Sector Erase), VA = Valid Address for reading status data (see Write Operation Status on Valid Address for reading status data (see Write Operation Status page 31). on page 22). 2.Illustration shows device in word mode. 2. Illustration shows device in word mode. Figure 17. AS29LV016 Rev. 2.1 10/08 Chip/Sector Erase Operation Timings Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 33 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 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 18. Data# Polling Timings (During Embedded Algorithms) tRC Addresses VA tACC tCE CE# tCH OE# tOEH WE# tOH DQ6/DQ2 tBUSY RY/BY# High Z VA VA VA tOE tDF Valid Status (first read) Valid Status (second read) Valid Status (stops toggling) Valid Data 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 19. Toggle Bit Timings (During Embedded Algorithms) AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 34 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 AC CHARACTERISTICS 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: The system may use CE# or OE# to toggle DQ2 and DQ6. DQ2 toggles only when read at an address within an erase-suspended sector. Figure 20. DQ2 vs. DQ6 for Erase and Erase Suspend Operations Temporary Sector Unprotect Parameter JEDEC Std tVIDR tRSP Description VID Rise and Fall Time1 RESET# Setup Time for Temporary Sector Unprotect Test Setup Min Min All Speed Options 500 4 Unit ns s Note: 1. Not 100% Tested. 12 V RESET# 0 or 3 V tVIDR Program or Erase Command Sequence CE# tVIDR WE# tRSP RY/BY# Figure 21. Temporary Sector Unprotect/Timing Diagram AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 35 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 AC CHARACTERISTICS VID VIH RESET# SA, A6, A1, A0 Valid* Sector Protect/Unprotect Valid* Verify 40h Sector Protect: 150 s Sector Unprotect: 15 ms Valid* Data 1 s CE# 60h 60h Status WE# OE# Note: For sector protect, A6 = 0, A1 = 1, A0 = 0. For sector unprotect, A6 = 1, A1 = 1, A0 = 0. Figure 22. Sector Protect/Unprotect Timing Diagram Alternate CE# Controlled Erase / Program Operations Parameter JEDEC Std tAVAV tWC tAVEL tELAX tDVEH tEHDX tAS tAH tDS tDH tOES tGHEL tWLEL tEHWH tELEH tEHEL tGHEL tWS tWH tCP tCPH tSR/W tWHWH1 tWHWH2 tWHWH1 tWHWH2 Description Write Cycle Time1 Address Setup Time Address Hold Time Data Setup Time Data Hold Time Output Enagle Setup Time Read Recovery Time Before Write, (OE# High to OE# Low) WE# Setup Time WE# Hold Time CE# Pulse Width CE# Pulse Width High Latency Between Read and Write Operations Programming Operation 2 Test Setup 70 70 45 35 Speed Options 90 100 90 100 0 45 45 0 0 55 55 Unit Min 0 0 0 35 35 30 20 5 7 0.7 40 ns Byte Word Typ s sec Sector Erase Operation2 Notes: 1. Not 100% Tested. 2. See Erase and Programming Performance on page 38 for more information. AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 36 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 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# RY/BY# Notes: 1. PA = program address, PD = program data, DQ7# = complement of the data written to the device, DOUT = data written to the device. 2. Figure indicates the last two bus cycles of the command sequence. 3. Word mode address used as an example. Figure 23. Alternate CE# Controlled Write Operation Timings AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 37 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 ERASE AND PROGRAMMING PERFORMANCE Parameter Sector Erase Time Chip Erase Time Byte Programming Time Word Programming Time Chip Programming Time3 Byte Mode Word Mode Typ1 0.7 25 7 7 11 7.2 Max2 10 210 210 33 21.6 Unit s s s s s s Comments Excludes 00h programming prior to erasure4 Excludes system level overhead5 Notes: 1.Typical program and erase times assume the following conditions: 25C, VCC = 3.0 V, 100,000 cycles, checkerboard data pattern. 2.Under worst case conditions of 90C, VCC = 2.7 V, 1,000,000 cycles. 3.The typical chip programming time is considerably less than the maximum chip programming time listed, since most bytes program faster than the maximum program times listed. 4.In the pre-programming step of the Embedded Erase algorithm, all bytes are programmed to 00h before erasure. 5.System-level overhead is the time required to execute the two- or four-bus-cycle sequence for the program command. See Table 9 on page 21 for further information on command definitions. 6.The device has a minimum erase and program cycle endurance of 100,000 cycles per sector. TSOP, SO AND BGA PIN CAPACITANCE Parameter Symbol CIN COUT CIN2 Parameter Description Input Capacitance Output Capacitance Control Pin Capacitance Test Setup VIN=0 VOUT=0 VIN=0 Package TSOP, SO TSOP, SO TSOP, SO Typ 6 8.5 7.5 Max 7.5 12 9 Unit pF pF pF Notes: 1. Samples, not 100% tested. 2. Test conditions T A =25 o C, f=1.0 MHz AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 38 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 PHYSICAL DIMENSIONS TS 048--48-Pin Standard TSOP 2X STANDARD PIN OUT (TOP VIEW) 2 1 N 0.10 2X (N/2 TIPS) 2X 0.10 A2 0.10 REVERSE PIN OUT (TOP VIEW) 3 1 N A SEE DETAIL B B E5 N 2 N +1 2 e 9 A1 C SEATING PLANE 0.08MM (0.0031") M C A-B S N 2 N +1 2 D1 D 0.25 2X (N/2 TIPS) 5 4 B A B SEE DETAIL A b 6 7 WITH PLATING 7 (c) c1 b1 SECTION B-B R (c) GAUGE PLANE BASE METAL e/2 PARALLEL TO SEATING PLANE C 0.25MM (0.0098") BSC X X = A OR B L DETAIL A DETAIL B NOTES: Jedec Symbol A A1 A2 b1 b c1 c D D1 E e L 0 R N MO-142 (D) DD MAX 1.20 0.15 0.05 1.05 1.00 0.95 0.20 0.23 0.17 0.27 0.22 0.17 0.16 0.10 0.21 0.10 19.80 20.00 20.20 18.30 18.40 18.50 11.90 12.00 12.10 0.50 BASIC 0.70 0.50 0.60 8 0 0.20 0.08 48 MIN NOM 1 2 3 4 CONTROLLING DIMENSIONS ARE IN MILLIMETERS (mm). (DIMENSIONING AND TOLERANCING CONFORMS TO ANSI Y14.5M-1982) PIN 1 IDENTIFIER FOR REVERSE PIN OUT (DIE UP). PIN 1 IDENTIFIER FOR REVERSE PIN OUT (DIE DOWN), INK OR LASER MARK. TO BE DETERMINED AT THE SEATING PLANE -C- . THE SEATING PLANE IS DEFINED AS THE PLANE OF CONTACT THAT IS MADE WHEN THE PACKAGE LEADS ARE ALLOWED TO REST FREELY ON A FLAT HORIZONTAL SURFACE. DIMENSIONS D1 AND E DO NOT INCLUDE MOLD PROTRUSION. ALLOWABLE MOLD PROTUSION IS 0.15mm (.0059") PER SIDE. DIMENSION b DOES NOT INCLUDE DAMBAR PROTUSION. ALLOWABLE DAMBAR PROTUSION SHALL BE 0.08 (0.0031") TOTAL IN EXCESS OF b DIMENSION AT MAX. MATERIAL CONDITION. MINIMUM SPACE BETWEEN PROTRUSION AND AN ADJACENT LEAD TO BE 0.07 (0.0028"). THESE DIMENSIONS APPLY TO THE FLAT SECTION OF THE LEAD BETWEEN 0.10MM (.0039") AND 0.25MM (0.0098") FROM THE LEAD TIP. LEAD COPLANARITY SHALL BE WITHIN 0.10mm (0.004") AS MEASURED FROM THE SEATING PLANE. DIMENSION "e" IS MEASURED AT THE CENTERLINE OF THE LEADS. 3355 \ 16-038.10c 5 6 7 8 9 AS29LV016 Rev. 2.1 10/08 For * Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. reference only. BSC is an ANSI standard for Basic Space Centering. 39 COTS COTS PEM BOOT SECTOR FLASH BOOT SECTOR Austin Semiconductor, Inc. AS29LV016 DOCUMENT TITLE 16 Megabit (2M x 8-Bit / 1M x 16-Bit), CMOS 3.0 Volt-Only Boot Sector Flash Memory REVISION HISTORY Rev # 2.1 History Added Pb-Free & Tape & Reel Option Release Date October 2008 Status Release AS29LV016 Rev. 2.1 10/08 Austin Semiconductor, Inc. reserves the right to change products or specifications without notice. 40 |
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