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MX25L12855E
MX25L12855E SECURED SERIAL FLASH SPECIFICATION PRELIMINARY - PUBLIC
P/N: PM1466
REV. 0.05, MAR. 05, 2009
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MX25L12855E
Contents
FEATURES .................................................................................................................................................................. 5 GENERAL DESCRIPTION ......................................................................................................................................... 7 Table 1. Additional Features .................................................................................................................................... 7 PIN CONFIGURATION ................................................................................................................................................ 8 PIN DESCRIPTION ...................................................................................................................................................... 8 BLOCK DIAGRAM....................................................................................................................................................... 9 DATA PROTECTION.................................................................................................................................................. 10 Table 2. Protected Area Sizes................................................................................................................................. 11 Table 3. 4K-bit Secured OTP Definition .................................................................................................................. 11 Memory Organization ............................................................................................................................................... 12 Table 4. Memory Organization ............................................................................................................................... 12 DEVICE OPERATION ................................................................................................................................................ 13 Figure 1-1. Serial Modes Supported (for Normal Serial mode) .............................................................................. 13 Figure 1-2. Serial Modes Supported (for Double Transfer Rate serial read mode) ................................................ 13 COMMAND DESCRIPTION ....................................................................................................................................... 14 Table 5. Command Sets ......................................................................................................................................... 14 (1) Write Enable (WREN) ....................................................................................................................................... 16 (2) Write Disable (WRDI) ........................................................................................................................................ 16 (3) Read Identification (RDID) ................................................................................................................................ 16 (4) Read Status Register (RDSR)........................................................................................................................... 17 (5) Write Status Register (WRSR) .......................................................................................................................... 18 Protection Modes .................................................................................................................................................... 18 (6) Read Data Bytes (READ) .................................................................................................................................. 19 (7) Read Data Bytes at Higher Speed (FAST_READ) ............................................................................................ 19 (8) 2 x I/O Read Mode (2READ) ............................................................................................................................. 19 (9) 4 x I/O Read Mode (4READ) ............................................................................................................................. 20 (10) Fast Double Transfer Rate Read (FASTDTRD) .............................................................................................. 20 (11) 2 x I/O Double Transfer Rate Read Mode (2DTRD) ........................................................................................ 20 (12) 4 x I/O Double Transfer Rate Read Mode (4DTRD)........................................................................................ 21 (13) Sector Erase (SE) ........................................................................................................................................... 21 (14) Block Erase (BE) ............................................................................................................................................. 22 (15) Block Erase (BE32K)....................................................................................................................................... 22 (16) Chip Erase (CE) .............................................................................................................................................. 22 (17) Page Program (PP) ......................................................................................................................................... 23 (18) 4 x I/O Page Program (4PP) ........................................................................................................................... 23 Program/Erase Flow(1) with read array data .......................................................................................................... 24 Program/Erase Flow(2) without read array data ..................................................................................................... 25 (19) Continuously program mode (CP mode) ......................................................................................................... 26 (20) Parallel Mode (Highly recommended for production throughputs increasing)................................................. 26 (21) Deep Power-down (DP) .................................................................................................................................. 27
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(22) Release from Deep Power-down (RDP), Read Electronic Signature (RES) ................................................... 27 (23) Read Electronic Manufacturer ID & Device ID (REMS), (REMS2), (REMS4), (REMS4D) ............................. 27 Table 6. ID Definitions ............................................................................................................................................ 28 (24) Enter Secured OTP (ENSO) ........................................................................................................................... 28 (25) Exit Secured OTP (EXSO) .............................................................................................................................. 28 (26) Read Security Register (RDSCUR)................................................................................................................. 28 Security Register Definition .................................................................................................................................... 29 (27) Write Security Register (WRSCUR) ................................................................................................................ 29 (28) GPIO Expander ............................................................................................................................................... 30 (28-1) GPIO Function Enable (GPIOEN) ................................................................................................................ 30 (28-2) GPIO Function Disable (GPIODIS) .............................................................................................................. 30 (28-3) GPIO Register Read/Write (GPIORW)......................................................................................................... 30 (28-4) GPIO Register Reset (GPIORST) ................................................................................................................ 30 (29) Write Protection Selection (WPSEL) ............................................................................................................... 32 WPSEL Flow ........................................................................................................................................................... 32 (30) Single Block Lock/Unlock Protection (SBLK/SBULK) ..................................................................................... 33 Block Lock Flow ...................................................................................................................................................... 33 Block Unlock Flow .................................................................................................................................................. 34 (31) Read Block Lock Status (RDBLOCK) ............................................................................................................. 35 (32) Gang Block Lock/Unlock (GBLK/GBULK) ....................................................................................................... 35 (33) Clear SR Fail Flags (CLSR) ............................................................................................................................ 35 (34) Output Driving Configure (ODC) ..................................................................................................................... 35 (35) Enable SO to Output RY/BY# (ESRY) ............................................................................................................ 36 (36) Disable SO to Output RY/BY# (DSRY) ........................................................................................................... 36 (37) Enter CFI Mode (ENCFI) ................................................................................................................................. 36 POWER-ON STATE ................................................................................................................................................... 37 ELECTRICAL SPECIFICATIONS .............................................................................................................................. 38 ABSOLUTE MAXIMUM RATINGS ......................................................................................................................... 38 Figure 2. Maximum Negative Overshoot Waveform ............................................................................................... 38 CAPACITANCE TA = 25C, f = 1.0 MHz ................................................................................................................. 38 Figure 3. Maximum Positive Overshoot Waveform................................................................................................. 38 Figure 4. INPUT TEST WAVEFORMS AND MEASUREMENT LEVEL .................................................................. 39 Figure 5. OUTPUT LOADING ................................................................................................................................ 39 Table 7. DC CHARACTERISTICS (Temperature = -40C to 85C for Industrial grade, VCC = 2.7V ~ 3.6V) ....... 40 Table 8. AC CHARACTERISTICS (Temperature = -40C to 85C for Industrial grade, VCC = 2.7V ~ 3.6V) ....... 41 Timing Analysis ........................................................................................................................................................ 43 Figure 6. Serial Input Timing ................................................................................................................................... 43 Figure 7. Output Timing .......................................................................................................................................... 43 Figure 8. Serial Input Timing for Double Transfer Rate Mode ................................................................................ 44 Figure 9. Serial Output Timing for Double Transfer Rate Mode.............................................................................. 44 Figure 10. WP# Setup Timing and Hold Timing during WRSR when SRWD=1 ..................................................... 45 Figure 11. Write Enable (WREN) Sequence (Command 06) .................................................................................. 45 Figure 12. Write Disable (WRDI) Sequence (Command 04) .................................................................................. 45
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Figure 13. Read Identification (RDID) Sequence (Command 9F) .......................................................................... 46 Figure 14. Read Identification (RDID) Sequence (Parallel) .................................................................................... 46 Figure 15. Read Status Register (RDSR) Sequence (Command 05)..................................................................... 47 Figure 16. Write Status Register (WRSR) Sequence (Command 01) ................................................................... 47 Figure 17. Read Data Bytes (READ) Sequence (Command 03) ........................................................................... 48 Figure 18. Read at Higher Speed (FAST_READ) Sequence (Command 0B) ....................................................... 48 Figure 19. Fast DT Read (FASTDTRD) Sequence (Command 0D) ....................................................................... 49 Figure 20. 2 x I/O Read Mode Sequence (Command BB) ..................................................................................... 49 Figure 21. Fast Dual I/O DT Read (2DTRD) Sequence (Command BD) ............................................................... 50 Figure 22. 4 x I/O Read Mode Sequence (Command EB) ..................................................................................... 50 Figure 23. 4 x I/O Read Enhance Performance Mode Sequence (Command EB)................................................. 51 Figure 24. Fast Quad I/O DT Read (4DTRD) Sequence (Command ED) .............................................................. 52 Figure 25. Fast Quad I/O DT Read (4DTRD) Enhance Performance Sequence (Command ED) ......................... 53 Figure 26. Page Program (PP) Sequence (Command 02) .................................................................................... 54 Figure 27. 4 x I/O Page Program (4PP) Sequence (Command 38) ...................................................................... 54 Figure 28. Continously Program (CP) Mode Sequence with Hardware Detection (Command AD) ....................... 55 Figure 29. Sector Erase (SE) Sequence (Command 20) ...................................................................................... 55 Figure 30. Block Erase (BE) Sequence (Command D8) ....................................................................................... 55 Figure 31. Chip Erase (CE) Sequence (Command 60 or C7) ............................................................................... 56 Figure 32. Deep Power-down (DP) Sequence (Command B9) ............................................................................. 56 Figure 33. Release from Deep Power-down and Read Electronic Signature (RES) Sequence (Command AB) .. 56 Figure 34. Release from Deep Power-down (RDP) Sequence (Command AB) .................................................... 57 Figure 35. Read Electronic Manufacturer & Device ID (REMS) Sequence (Command 90 or EF or DF or CF) .... 57 Figure 36. READ ARRAY SEQUENCE (Parallel) .................................................................................................. 58 Figure 37. AUTO PAGE PROGRAM TIMING SEQUENCE (Parallel) ................................................................... 59 Figure 38. Release from Deep Power-down and Read Electronic Signature (RES) Sequence (Parallel) ............. 60 Figure 39. Read Electronic Manufacturer & Device ID (REMS) Sequence (Parallel)............................................ 61 Figure 40. Write Protection Selection (WPSEL) Sequence (Command 68) .......................................................... 62 Figure 41. Single Block Lock/Unlock Protection (SBLK/SBULK) Sequence (Command 36/39) ........................... 62 Figure 42. Read Block Protection Lock Status (RDBLOCK) Sequence (Command 3C)....................................... 62 Figure 43. Gang Block Lock/Unlock (GBLK/GBULK) Sequence (Command 7E/98)............................................. 63 Figure 44. Power-up Timing.................................................................................................................................... 63 Table 9. Power-Up Timing and VWI Threshold ....................................................................................................... 63 INITIAL DELIVERY STATE ..................................................................................................................................... 63 RECOMMENDED OPERATING CONDITIONS ......................................................................................................... 64 ERASE AND PROGRAMMING PERFORMANCE .................................................................................................... 65 LATCH-UP CHARACTERISTICS .............................................................................................................................. 65 ORDERING INFORMATION ...................................................................................................................................... 66 PART NAME DESCRIPTION ..................................................................................................................................... 66 PACKAGE INFORMATION ........................................................................................................................................ 67 REVISION HISTORY ................................................................................................................................................. 69
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PRELIMINARY
MX25L12855E
128M-BIT [x 1/x 2/x 4] CMOS MXSMIOTM (SERIAL MULTI I/O) FLASH MEMORY
FEATURES
GENERAL * Serial Peripheral Interface compatible -- Mode 0 and Mode 3 * 134,217,728 x 1 bit structure or 67,108,864 x 2 bits (two I/O mode) structure or 33,554,432 x 4 bits (four I/O mode) structure * 4096 Equal Sectors with 4K bytes each - Any Sector can be erased individually * 512 Equal Blocks with 32K bytes each - Any Block can be erased individually * 256 Equal Blocks with 64K bytes each - Any Block can be erased individually * Power Supply Operation - 2.7 to 3.6 volt for read, erase, and program operations * Latch-up protected to 100mA from -1V to Vcc +1V PERFORMANCE * High Performance VCC = 2.7~3.6V - Normal read - 50MHz - Fast read (Normal Serial Mode) - 1 I/O: 104MHz with 8 dummy cycles - 2 I/O: 70MHz with 4 dummy cycles - 4 I/O: 70MHz with 6 dummy cycles - Fast read (Double Transfer Rate Mode) - 1 I/O: 50MHz with 6 dummy cycles - 2 I/O: 50MHz with 6 dummy cycles - 4 I/O: 50MHz with 8 dummy cycles - Fast program time: 1.4ms(typ.) and 5ms(max.)/page (256-byte per page) - Byte program time: 9us (typical) - Continuously Program mode (automatically increase address under word program mode) - Fast erase time: 90ms (typ.)/sector (4K-byte per sector) ; 0.7s(typ.) /block (64K-byte per block); 80s(typ.) /chip * Low Power Consumption - Low active read current: 45mA(max.) at 104MHz, 40mA(max.) at 66MHz and 30mA(max.) at 33MHz - Low active programming current: 25mA (max.) - Low active erase current: 25mA (max.) - Low standby current: 100uA (max.) - Deep power down current: 40uA (max.) * Typical 100,000 erase/program cycles SOFTWARE FEATURES * Input Data Format - 1-byte Command code * Advanced Security Features
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- Flexible block or individual block protect selection - Individual block (or sector) permanent lock The BP0-BP3 status bits define the size of the area to be software protection against program and erase instructions - Additional 4K bits secured OTP for unique identifier * Auto Erase and Auto Program Algorithms - Automatically erases and verifies data at selected sector - Automatically programs and verifies data at selected page by an internal algorithm that automatically times the program pulse width (Any page to be programed should have page in the erased state first.) * Status Register Feature * Electronic Identification - JEDEC 1-byte Manufacturer ID and 2-byte Device ID - RES command for 1-byte Device ID - Both REMS,REMS2, REMS4 and REMS4D commands for 1-byte Manufacturer ID and 1-byte Device ID * Support Common Flash Interface (CFI) (TBD) HARDWARE FEATURES * SCLK Input - Serial clock input * SI/SIO0 - Serial Data Input or Serial Data Input/Output for 2 x I/O mode and 4 x I/O mode * SO/SIO1/PO7 - Serial Data Output or Serial Data Input/Output for 2 x I/O mode and 4 x I/O mode or Parallel Mode Data * WP#/SIO2 - Hardware write protection or serial data Input/Output for 4 x I/O mode * NC/SIO3 - NC pin or serial data Input/Output for 4 x I/O mode * PO0~PO6 - For parallel mode data * PACKAGE - 16-pin SOP (300mil) - 24-ball TFBGA (10x13 mm) - All Pb-free devices are RoHS Compliant
Please contact Macronix sales for specific information regarding this Advanced Security Features
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MX25L12855E
GENERAL DESCRIPTION
The MX25L12855E is 134,217,728 bits serial Flash memory, which is configured as 16,777,216 x 8 internally. When it is in two or four I/O mode, the structure becomes 67,108,864 bits x 2 or 33,554,432 bits x 4. The MX25L12855E features a serial peripheral interface and software protocol allowing operation on a simple 3-wire bus. The three bus signals are a clock input (SCLK), a serial data input (SI), and a serial data output (SO). Serial access to the device is enabled by CS# input. The MX25L12855E provides high performance read mode, which may latch address and data on both rising and falling edge of clock. By using this high performance read mode, the data throughput may be doubling. Moreover, the performance may reach direct code execution, the RAM size of the system may be reduced and further saving system cost. The MX25L12855E provides sequential read operation on whole chip and multi-I/O features. When it is in dual I/O mode, the SI pin and SO pin become SIO0 pin and SIO1 pin for address/dummy bits input and data output. When it is in quad I/O mode, the SI pin, SO pin, WP# pin and NC pin become SIO0 pin, SIO1 pin, SIO2 pin and SIO3 pin for address/dummy bits input and data Input/Output. After program/erase command is issued, auto program/ erase algorithms which program/ erase and verify the specified page or sector/block locations will be executed. Program command is executed on byte basis, or page (256 bytes) basis, or word basis for Continuously Program mode, and erase command is executes on sector (4K-byte), block (32K-byte/64K-byte), or whole chip basis. To provide user with ease of interface, a status register is included to indicate the status of the chip. The status read command can be issued to detect completion status of a program or erase operation via WIP bit. Advanced security features enhance the protection and security functions, please see Security Features section for more details. When the device is not in operation and CS# is high, it is put in standby mode and draws less than 100uA DC current. The MX25L12855E utilizes MXIC's proprietary memory cell, which reliably stores memory contents even after 100,000 program and erase cycles.
Table 1. Additional Features
Read Performance Additional Protection and Security Features Individual Permanent 1 I/O DT 2 I/O DT block (or 1 I/O Read 2 I/O Read 4 I/O Read Part Lock and Read Read sector) (104 MHz) (70 MHz) (70 MHz) Name read lock (50 MHz) (50 MHz) protection MX25L12855E Additional Features Part Name MX25L12855E RES (command: AB hex) 88 (hex) REMS (command: 90 hex) C2 88 (hex) (if ADD=0) V V V V V Identifier REMS2 (command: EF hex) C2 88 (hex) (if ADD=0) REMS4 (command: DF hex) C2 88 (hex) (if ADD=0) REMS4D (command: CF hex) C2 88 (hex) (if ADD=0) RDID (command: 9F hex) C2 26 18 (hex) V V
4 I/O DT Read (50 MHz) V
8 I/O Parallel Mode (6 MHz) V
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MX25L12855E
PIN CONFIGURATION
Please contact Macronix sales for specific information regarding 16-pin SOP (300mil) and 24-ball TFBGA (10x13mm) package pin configuration.
PIN DESCRIPTION
SYMBOL DESCRIPTION CS# SI/SIO0 Chip Select Serial Data Input (for 1 x I/O)/ Serial Data Input & Output (for 2xI/O or 4xI/O mode) Serial Data Output (for 1 x I/O)/ Serial SO/SIO1/ Data Input & Output (for 2xI/O or 4xI/O PO7 mode) / Parallel Data Output/Input Clock Input Write protection: connect to GND or WP#/SIO2 Serial Data Input & Output (for 4xI/O mode) NC pin (Not connect) or Serial Data Input NC/SIO3 & Output (for 4xI/O mode) VCC + 3.3V Power Supply GND GPIO0/PO0 ~ GPIO6/ PO6 NC Ground General Purpose Input & Output/ Parallel data output/input (PO0~PO6 can be connected to NC in serial mode) No Connection SCLK
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MX25L12855E
BLOCK DIAGRAM
PAD[6:0] Address Generator
X-Decoder
Memory Array
GPIO Page Buffer Data Register
SI/SIO0
Y-Decoder
SRAM Buffer Sense Amplifier CS# WP#/SIO2 NC/SIO3 Mode Logic State Machine
HV Generator
SCLK SO/SIO1
Clock Generator Output Buffer
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DATA PROTECTION
The MX25L12855E is designed to offer protection against accidental erasure or programming caused by spurious system level signals that may exist during power transition. During power up the device automatically resets the state machine in the standby mode. In addition, with its control register architecture, alteration of the memory contents only occurs after successful completion of specific command sequences. The device also incorporates several features to prevent inadvertent write cycles resulting from VCC power-up and power-down transition or system noise. * Valid command length checking: The command length will be checked whether it is at byte base and completed on byte boundary.
* Write Enable (WREN) command: WREN command is required to set the Write Enable Latch bit (WEL) before other command to change data. The WEL bit will return to reset stage under following situation: - Power-up - Write Disable (WRDI) command completion - Write Status Register (WRSR) command completion - Page Program (PP, 4PP) command completion - Continuously Program mode (CP) instruction completion - Sector Erase (SE) command completion - Block Erase (BE, BE32K) command completion - Chip Erase (CE) command completion - Single Block Lock/Unlock (SBLK/SBULK) instruction completion - Gang Block Lock/Unlock (GBLK/GBULK) instruction completion - Permanent Lock (PLOCK) instruction completion - Write Read Lock Register (WRLCR) command completion * Deep Power Down Mode: By entering deep power down mode, the flash device also is under protected from writing all commands except Release from Deep Power Down mode command (RDP) and Read Electronic Signature command (RES). Advanced Security Features: there are some protection and security features which protect content from inadvertent write and hostile access.
*
I. Block lock protection - The Software Protected Mode (SPM) uses (BP3, BP2, BP1, BP0) bits to allow part of memory to be protected as read only. The protected area definition is shown as table of "Protected Area Sizes", the protected areas are more flexible which may protect various area by setting value of BP0-BP3 bits. Please refer to table of "Protected Area Sizes". - The Hardware Protected Mode (HPM) use WP#/SIO2 to protect the (BP3, BP2, BP1, BP0) bits and SRWD bit. If the system goes into four I/O mode, the feature of HPM will be disabled. - MX25L12855E provide individual block (or sector) write protect & unprotect. User may enter the mode with WPSEL command and conduct individual block (or sector) write protect with SBLK instruction, or SBULK for individual block (or sector) unprotect. Under the mode, user may conduct whole chip (all blocks) protect with GBLK instruction and unlock the whole chip with GBULK instruction. For sector(s) or block(s) that is (are) permanently locked, SBULK & GBULK does not influence the state of the permanently locked sector(s)' or block(s)' status.
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Table 2. Protected Area Sizes Status bit BP3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 BP2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 BP1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 BP0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 Protection Area 128Mb All All All All All All All All Upper half (hundrend and twenty-eight blocks: 128 to 255) Upper quarter (sixty-four blocks: 192 to 255) Upper eighth (thirty-two blocks: 224 to 255) Upper sixteenth (sixteen blocks: 240 to 255) Upper 32nd (eight blocks: 248 to 255) Upper 64th (four blocks: 252 to 255) Upper 128th (two blocks: 254 and 255) None
Note: The device is ready to accept a Chip Erase instruction if, and only if, all Block Protect (BP3, BP2, BP1, BP0) are 0. II. Additional 4K-bit secured OTP for unique identifier: to provide 4K-bit One-Time Program area for setting device unique serial number - Which may be set by factory or system maker. Please refer to Table 3. 4K-bit Secured OTP Definition. - Security register bit 0 indicates whether the chip is locked by factory or not. - To program the 4K-bit secured OTP by entering 4K-bit secured OTP mode (with ENSO command), and going through normal program procedure, and then exiting 4K-bit secured OTP mode by writing EXSO command. - Customer may lock-down the customer lockable secured OTP by writing WRSCUR(write security register) command to set customer lock-down bit1 as "1". Please refer to table of "Security Register Definition" for security register bit definition and table of "4K-bit Secured OTP Definition" for address range definition. - Note: Once lock-down whatever by factory or customer, it cannot be changed any more. While in 4K-bit Secured OTP mode, array access is not allowed.
Table 3. 4K-bit Secured OTP Definition Address range xxx000~xxx00F xxx010~xxxFFF Size 128-bit 3968-bit Standard Factory Lock ESN (electrical serial number) N/A Customer Lock Determined by customer
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Memory Organization
Table 4. Memory Organization
Block(64K-byte) Block(32K-byte) 511 255 510 Sector 4095 ... 4088 4087 4080 4079 4072 4071 4064 4063 253 506 4056 4055 4048 ... ... 507 ... 508 individual block lock/unlock unit:64K-byte ... 509 254 ... Address Range FFF000h FF8000h FF7000h FF0000h FEF000h FE8000h FE7000h FE0000h FDF000h FD8000h FD7000h FD0000h FFFFFFh FF8FFFh FF7FFFh FF0FFFh FEFFFFh FE8FFFh FE7FFFh FE0FFFh FDFFFFh FD8FFFh FD7FFFh FD0FFFh individual 16 sectors lock/unlock unit:4K-byte
individual block lock/unlock unit:64K-byte
47 ... 5 2 4 40 39 ... 32 31 ... 3 1 2 24 23 ... 16 15 ... 1 0 0 8 7 ... 0
02F000h 028000h 027000h 020000h 01F000h 018000h 017000h 010000h 00F000h 008000h 007000h 000000h
02FFFFh 028FFFh 027FFFh 020FFFh 01FFFFh 018FFFh 017FFFh 010FFFh 00FFFFh 008FFFh 007FFFh 000FFFh individual 16 sectors lock/unlock unit:4K-byte
individual block lock/unlock unit:64K-byte
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MX25L12855E
DEVICE OPERATION
1. Before a command is issued, status register should be checked to ensure device is ready for the intended operation. 2. When incorrect command is inputted to this LSI, this LSI becomes standby mode and keeps the standby mode until next CS# falling edge. In standby mode, SO pin of this LSI should be High-Z. 3. When correct command is inputted to this LSI, this LSI becomes active mode and keeps the active mode until next CS# rising edge. 4. For standard single data rate serial mode, input data is latched on the rising edge of Serial Clock(SCLK) and data shifts out on the falling edge of SCLK. The difference of Serial mode 0 and mode 3 is shown as Figure 1-1. For high performance (Double Transfer Rate Read serial mode), data is latched on both rising and falling edge of clock and data shifts out on both rising and falling edge of clock as Figure 1-2. 5. For the following instructions: RDID, RDSR, RDSCUR, READ, FAST_READ, 2READ, 4READ,FASTDTRD, 2DTRD, 4DTRD, RDBLOCK, PRLCR, RES, REMS, REMS2, REMS4 and REMS4D the shifted-in instruction sequence is followed by a data-out sequence. After any bit of data being shifted out, the CS# can be high. For the following instructions: WREN, WRDI, Parallel Mode WRSR, SE, BE, BE32K,CE, PP, CP, 4PP, RDP, DP, WPSEL, SBLK, SBULK, GBLK, GBULK, PLOCK, WRLCR, ENSO, EXSO,and WRSCUR, the CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. 6. During the progress of Write Status Register, Program, Erase operation, to access the memory array is neglected and not affect the current operation of Write Status Register, Program, Erase. Figure 1-1. Serial Modes Supported (for Normal Serial mode)
CPOL (Serial mode 0) 0 CPHA 0 SCLK shift in shift out
(Serial mode 3)
1
1
SCLK
SI
MSB
SO
MSB
Note: CPOL indicates clock polarity of Serial master, CPOL=1 for SCLK high while idle, CPOL=0 for SCLK low while not transmitting. CPHA indicates clock phase. The combination of CPOL bit and CPHA bit decides which Serial mode is supported. Figure 1-2. Serial Modes Supported (for Double Transfer Rate serial read mode)
CPOL (Serial mode 0) 0 CPHA 0 SCLK data in data in data out data out
(Serial mode 3)
1
1
SCLK
SI
MSB
SO
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COMMAND DESCRIPTION
Table 5. Command Sets
COMMAND WREN (write (byte) enable) 1st byte 2nd byte 3rd byte 4th byte RDSR WRSR FASTDTRD 2DTRD (Dual (read status (write status (fast DT I/O DT Read) register) register) read) 06 (hex) 04 (hex) 9F (hex) 05 (hex) 01 (hex) 0D (hex) BD (hex) ADD(2) & Values ADD1 Dummy(2) ADD(1) & Dummy(2) Dummy(1) Dummy(1) sets the resets the outputs JEDEC to read out to write new n bytes read n bytes read (WEL) write (WEL) write ID: 1-byte the values values to out (Double out (Double enable latch enable latch Manufacturer of the status the status Transfer Transfer bit bit ID & 2-byte register register Rate) until Rate) by 2xI/ Device ID CS# goes O until CS# high goes high FAST READ (fast read data) 0B (hex) AD1 AD2 AD3 2READ (2 x I/O read command) Note1 BB (hex) ADD(2) ADD(2) & Dummy(2) 4READ (4 x I/O read command) EB (hex) ADD(4) & Dummy(4) Dummy(4) 4PP (quad page program) 38 (hex) AD1 SE (sector erase) 20 (hex) AD1 AD2 AD3 to erase the selected sector WRDI (write RDID (read disable) identification) 4DTRD (Quad I/O DT Read) ED (hex) ADD(4) & Dummy(4) Dummy(4) n bytes read out (Double Transfer Rate) by 4xI/ O until CS# goes high
Action
COMMAND READ (read (byte) data) 1st byte 2nd byte 3rd byte 4th byte 5th byte Action 03 (hex) AD1 (A23-A16) AD2 (A15-A8) AD3 (A7-A0)
BE (block BE 32K (block erase 64KB) erase 32KB) D8 (hex) AD1 AD2 AD3 to erase the selected 64KB block 52 (hex) AD1 AD2 AD3 to erase the selected 32KB block
Dummy n bytes read n bytes read n bytes read n bytes read quad input out until CS# out until CS# out by 2 x I/ out by 4 x I/ to program goes high goes high O until CS# O until CS# the selected goes high goes high page
COMMAND (byte) 1st byte 2nd byte 3rd byte 4th byte
CE (chip erase) 60 or C7 (hex)
PP (Page program) 02 (hex) AD1 AD2 AD3 to program the selected page
CP DP (Deep (Continuously power program mode) down) AD (hex) B9 (hex)
RDP REMS (read (Release RES (read electronic from deep electronic manufacturer power ID) & device ID) down) AB (hex) AB (hex) 90 (hex)
REMS2 (read ID for 2x I/O mode) EF (hex)
to erase whole chip
Action
AD1 x x x AD2 x x x AD3 x ADD (Note 2) ADD (Note 2) continously enters deep release to read output the output the program power down from deep out 1-byte Manufacturer Manufacturer ID whole chip, mode power down Device ID ID & Device & Device ID the address is mode ID automatically increase
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REMS4 (read ID for 4x I/O mode) DF (hex) x x ADD (Note 2) output the Manufacturer ID & device ID REMS4D (read ID for 4x I/O DT mode) CF (hex) x x ADD (Note 2) ENSO (enter secured OTP) B1 (hex) EXSO (exit secured OTP) C1 (hex) RDSCUR (read security register) 2B (hex) WRSCUR ESRY DSRY ENCFI (write (enable SO (disable SO (enter CFI security to output to output mode) register) RY/BY#) RY/BY#) 2F (hex) 70 (hex) 80 (hex) A5 (hex) x x ADD (A7 is don't care) Dummy to set the to enable to disable to enter CFI lock-down SO to SO to Query bit as "1" output RY/ output RY/ (once lock- BY# during BY# during down, CP mode CP mode cannot be updated) GPIORST (GPIO register reset) 1E (hex)
COMMAND (byte) 1st byte 2nd byte 3rd byte 4th byte 5th byte
Action
output the to enter to exit Manufact- the 4K-bit the 4K-bit urer ID & Secured Secured Device ID OTP mode OTP mode
to read value of security register
CLSR HPM (High ODC GPIOEN GPIODIS GPIORW (Clear SR Perform(Output (GPIO (GPIO (GPIO COMMAND Fail Flags) ance driving function function register (byte) Enable Configure) enable) Disable) read/write) Mode) 1st byte 55 (hex) 45 (hex) 30 (hex) A3 (hex) 6D (hex) 1A (hex) 18 (hex) 1C (hex) 2nd byte Dummy Values Values 3rd byte Dummy Values 4th byte Dummy 8xI/O to exit clear Quad I/ change the enable the disable the change/ parallel 8xI/O security O high option value function of function of read the programparallel register bit Performof output GPIO mode GPIO mode value of Action ming mode program- 6 and bit 5 ance mode driving GPIO ming mode registers SBLK SBULK RDBLOCK GBLK GBULK (single (single block (block (gang block (gang block block lock) unlock) protect read) lock) unlock) *Note 4 36 (hex) 39 (hex) 3C (hex) 7E (hex) 98 (hex) AD1 AD1 AD1 AD2 AD2 AD2 AD3 AD3 AD3 to enter individual individual read whole whole chip and enable block (64K- block (64K- individual chip write unprotect individal byte) or byte) or block or protect block protect sector (4Ksector sector write mode byte) write (4K-byte) protect protect unprotect status WPSEL (write protection selection) 68 (hex)
ENPLM (Enter Parallel Mode)
EXPLM (EXIT Parallel Mode)
reset all the GPIO registers
COMMAND (byte) 1st byte 2nd byte 3rd byte 4th byte
Action
Note 1: The count base is 4-bit for ADD(2) and Dummy(2) because of 2 x I/O. And the MSB is on SI/SIO1 which is different from 1 x I/O condition. Note 2: ADD=00h will output the Manufacturer ID first and ADD=01h will output Device ID first. Note 3: It is not recommended to adopt any other code not in the command definition table, which will potentially enter the hidden mode.
Note 4. In individual block write protection mode, all blocks/sectors is locked as defualt.
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(1) Write Enable (WREN) The Write Enable (WREN) instruction is for setting Write Enable Latch (WEL) bit. For those instructions like PP, 4PP, CP, SE, BE, BE32K, CE, WRSR, WRLCR, SBLK, SBULK, GBLK, GBULK, and PLOCK which are intended to change the device content, should be set every time after the WREN instruction setting the WEL bit. The sequence of issuing WREN instruction is: CS# goes low sending WREN instruction code CS# goes high. (see Figure 11) (2) Write Disable (WRDI) The Write Disable (WRDI) instruction is for resetting Write Enable Latch (WEL) bit. The sequence of issuing WRDI instruction is: CS# goes low sending WRDI instruction code CS# goes high. (see Figure 12) The WEL bit is reset by following situations: - Power-up - Write Disable (WRDI) instruction completion - Write Status Register (WRSR) instruction completion - Write Read Lock Register (WRLCR) instruction completion - Page Program (PP, 4PP) instruction completion - Sector Erase (SE) instruction completion - Block Erase (BE, BE32K) instruction completion - Chip Erase (CE) instruction completion - Continuously Program mode (CP) instruction completion - Single Block Lock/Unlock (SBLK/SBULK) instruction completion - Gang Block Lock/Unlock (GBLK/GBULK) instruction completion - Permanent Lock (PLOCK) instruction completion - Write Read Lock Register (WRLCR) command completion (3) Read Identification (RDID) The RDID instruction is for reading the Manufacturer ID of 1-byte and followed by Device ID of 2-byte. The MXIC Manufacturer ID is C2(hex), the memory type ID is 26(hex) as the first-byte Device ID, and the individual Device ID of second-byte ID are listed as table of "ID Definitions". (see Table 8 in page 31) The sequence of issuing RDID instruction is: CS# goes low-> sending RDID instruction code -> 24-bits ID data out on SO -> to end RDID operation can use CS# to high at any time during data out. (see Figure 13 and Figure 14 for parallel mode) While Program/Erase operation is in progress, it will not decode the RDID instruction, so there's no effect on the cycle of program/erase operation which is currently in progress. When CS# goes high, the device is at standby stage.
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(4) Read Status Register (RDSR) The RDSR instruction is for reading Status Register. The Read Status Register can be read at any time (even in program/erase/write status register condition) and continuously. It is recommended to check the Write in Progress (WIP) bit before sending a new instruction when a program, erase, or write status register operation is in progress. The sequence of issuing RDSR instruction is: CS# goes low-> sending RDSR instruction code-> Status Register data out on SO (see Figure 15). The definition of the status register bits is as below: WIP bit. The Write in Progress (WIP) bit, a volatile bit, indicates whether the device is busy in program/erase/write status register progress. When WIP bit sets to 1, which means the device is busy in program/erase/write status register progress. When WIP bit sets to 0, which means the device is not in progress of program/erase/write status register cycle. WEL bit. The Write Enable Latch (WEL) bit, a volatile bit, indicates whether the device is set to internal write enable latch. When WEL bit sets to "1", which means the internal write enable latch is set, the device can accept program/ erase/write status register instruction. When WEL bit sets to 0, which means no internal write enable latch; the device will not accept program/erase/write status register instruction. The program/erase command will be ignored and will reset WEL bit if it is applied to a protected memory area. BP3, BP2, BP1, BP0 bits. The Block Protect (BP3, BP2, BP1, BP0) bits, non-volatile bits, indicate the protected area(as defined in Table 2) of the device to against the program/erase instruction without hardware protection mode being set. To write the Block Protect (BP3, BP2, BP1, BP0) bits requires the Write Status Register (WRSR) instruction to be executed. Those bits define the protected area of the memory to against Page Program (PP), Sector Erase (SE), Block Erase (BE) and Chip Erase(CE) instructions (only if all Block Protect bits set to 0, the CE instruction can be executed). QE bit. The Quad Enable (QE) bit, non-volatile bit, while it is "0" (factory default), it performs non-Quad and WP# is enable. While QE is "1", it performs Quad I/O mode and WP# is disabled. In the other word, if the system goes into four I/O mode (QE=1), the feature of HPM will be disabled. SRWD bit. The Status Register Write Disable (SRWD) bit, non-volatile bit, default value is "0". SRWD bit is operated together with Write Protection (WP#/SIO2) pin for providing hardware protection mode. The hardware protection mode requires SRWD sets to 1 and WP#/SIO2 pin signal is low stage. In the hardware protection mode, the Write Status Register (WRSR) instruction is no longer accepted for execution and the SRWD bit and Block Protect bits (BP3, BP2, BP1, BP0) are read only. Status Register bit7 SRWD (status register write protect) bit6 QE (Quad Enable) bit5 BP3 (level of protected block) (note 1) Non-volatile bit bit4 BP2 (level of protected block) (note 1) Non-volatile bit bit3 BP1 (level of protected block) (note 1) Non-volatile bit bit2 BP0 (level of protected block) (note 1) Non-volatile bit bit1 bit0 WEL WIP (write enable (write in latch) progress bit) 1=write 1=write enable operation 0=not write 0=not in write enable operation volatile bit volatile bit
1= Quad 1=status Enable register write 0=not Quad disable Enable Non-volatile Non-volatile bit bit
Note 1: see the Table 2 "Protected Area Size".
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(5) Write Status Register (WRSR) The WRSR instruction is for changing the values of Status Register Bits. Before sending WRSR instruction, the Write Enable (WREN) instruction must be decoded and executed to set the Write Enable Latch (WEL) bit in advance. The WRSR instruction can change the value of Block Protect (BP3, BP2, BP1, BP0) bits to define the protected area of memory (as shown in Table 2). The WRSR also can set or reset the Quad enable (QE) bit and set or reset the Status Register Write Disable (SRWD) bit in accordance with Write Protection (WP#/SIO2) pin signal, but has no effect on bit1(WEL) and bit0 (WIP) of the statur register. The WRSR instruction cannot be executed once the Hardware Protected Mode (HPM) is entered. The sequence of issuing WRSR instruction is: CS# goes low sending WRSR instruction code Status Register data on SI CS# goes high. (see Figure 16) The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. The self-timed Write Status Register cycle time (tW) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Write Status Register cycle is in progress. The WIP sets 1 during the tW timing, and sets 0 when Write Status Register Cycle is completed, and the Write Enable Latch (WEL) bit is reset. Protection Modes Mode Software protection mode(SPM) Status register condition Status register can be written in (WEL bit is set to "1") and the SRWD, BP0-BP3 bits can be changed The SRWD, BP0-BP3 of status register bits cannot be changed WP# and SRWD bit status WP#=1 and SRWD bit=0, or WP#=0 and SRWD bit=0, or WP#=1 and SRWD=1 WP#=0, SRWD bit=1 Memory The protected area cannot be program or erase. The protected area cannot be program or erase.
Hardware protection mode (HPM)
Note: As defined by the values in the Block Protect (BP3, BP2, BP1, BP0) bits of the Status Register, as shown in Table 2. As the above table showing, the summary of the Software Protected Mode (SPM) and Hardware Protected Mode (HPM). Software Protected Mode (SPM): - When SRWD bit=0, no matter WP#/SIO2 is low or high, the WREN instruction may set the WEL bit and can change the values of SRWD, BP3, BP2, BP1, BP0. The protected area, which is defined by BP3, BP2, BP1, BP0, is at software protected mode (SPM). - When SRWD bit=1 and WP#/SIO2 is high, the WREN instruction may set the WEL bit can change the values of SRWD, BP3, BP2, BP1, BP0. The protected area, which is defined by BP3, BP2, BP1, BP0, is at software protected mode (SPM) Hardware Protected Mode (HPM): - When SRWD bit=1, and then WP#/SIO2 is low (or WP#/SIO2 is low before SRWD bit=1), it enters the hardware protected mode (HPM). The data of the protected area is protected by software protected mode by BP3, BP2, BP1, BP0 and hardware protected mode by the WP#/SIO2 to against data modification. Note: To exit the hardware protected mode requires WP#/SIO2 driving high once the hardware protected mode is entered. If the WP#/SIO2 pin is permanently connected to high, the hardware protected mode can never be entered; only can use software protected mode via BP3, BP2, BP1, BP0. If the system goes into four I/O mode, the feature of HPM will be disabled.
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(6) Read Data Bytes (READ) The read instruction is for reading data out. The address is latched on rising edge of SCLK, and data shifts out on the falling edge of SCLK at a maximum frequency fR. The first address byte can be at any location. The address is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can be read out at a single READ instruction. The address counter rolls over to 0 when the highest address has been reached. The sequence of issuing READ instruction is: CS# goes low sending READ instruction code3-byte address on SI data out on SO to end READ operation can use CS# to high at any time during data out. (see Figure 17) (7) Read Data Bytes at Higher Speed (FAST_READ) The FAST_READ instruction is for quickly reading data out. The address is latched on rising edge of SCLK, and data of each bit shifts out on the falling edge of SCLK at a maximum frequency fC. The first address byte can be at any location. The address is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can be read out at a single FAST_READ instruction. The address counter rolls over to 0 when the highest address has been reached. The sequence of issuing FAST_READ instruction is: CS# goes lowsending FAST_READ instruction code3-byte address on SI 1-dummy byte (default) address on SIdata out on SO to end FAST_READ operation can use CS# to high at any time during data out. (see Figure 18) While Program/Erase/Write Status Register cycle is in progress, FAST_READ instruction is rejected without any impact on the Program/Erase/Write Status Register current cycle. (8) 2 x I/O Read Mode (2READ) The 2READ instruction enables Double Transfer Rate of Serial Flash in read mode. The address is latched on rising edge of SCLK, and data of every two bits(interleave on 2 I/O pins) shift out on the falling edge of SCLK at a maximum frequency fT. The first address byte can be at any location. The address is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can be read out at a single 2READ instruction. The address counter rolls over to 0 when the highest address has been reached. Once writing 2READ instruction, the following address/dummy/data out will perform as 2-bit instead of previous 1-bit. The sequence of issuing 2READ instruction is: CS# goes low sending 2READ instruction 24-bit address interleave on SIO1 & SIO0 4-bit dummy cycle on SIO1 & SIO0 data out interleave on SIO1 & SIO0 to end 2READ operation can use CS# to high at any time during data out (see Figure 20 for 2 x I/O Read Mode Timing Waveform). While Program/Erase/Write Status Register cycle is in progress, 2READ instruction is rejected without any impact on the Program/Erase/Write Status Register current cycle. (9) 4 x I/O Read Mode (4READ) The 4READ instruction enables quad throughput of Serial Flash in read mode. A Quad Enable (QE) bit of status Register must be set to "1" before seding the 4READ instruction.The address is latched on rising edge of SCLK, and data of every four bits(interleave on 4 I/O pins) shift out on the falling edge of SCLK at a maximum frequency fQ. The first address byte can be at any location. The address is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can be read out at a single 4READ instruction. The address
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counter rolls over to 0 when the highest address has been reached. Once writing 4READ instruction, the following address/dummy/data out will perform as 4-bit instead of previous 1-bit. The sequence of issuing 4READ instruction is: CS# goes low sending 4READ instruction 24-bit address interleave on SIO3, SIO2, SIO1 & SIO0 6 dummy cycles data out interleave on SIO3, SIO2, SIO1 & SIO0 to end 4READ operation can use CS# to high at any time during data out (see Figure 22 for 4 x I/O Read Mode Timing Waveform). Another sequence of issuing 4 READ instruction especially useful in random access is : CS# goes low sending 4 READ instruction 3-bytes address interleave on SIO3, SIO2, SIO1 & SIO0 performance enhance toggling bit P[7:0] 4 dummy cycles data out still CS# goes high CS# goes low (reduce 4 Read instruction) 24-bit random access address (see Figure 23 for 4x I/O Read Enhance Performance Mode timing waveform). In the performance-enhancing mode (Note of Figure. 23), P[7:4] must be toggling with P[3:0] ; likewise P[7:0]=A5h,5Ah,F0h or 0Fh can make this mode continue and reduce the next 4READ instruction. Once P[7:4] is no longer toggling with P[3:0]; likewise P[7:0]=FFh,00h,AAh or 55h. These commands will reset the performance enhance mode. And afterwards CS# is raised and then lowered, the system then will return to normal operation. While Program/Erase/Write Status Register cycle is in progress, 4READ instruction is rejected without any impact on the Program/Erase/Write Status Register current cycle. (10) Fast Double Transfer Rate Read (FASTDTRD) The FASTDTRD instruction is for doubling reading data out, signals are triggered on both rising and falling edge of clock. The address is latched on both rising and falling edge of SCLK, and data of each bit shifts out on both rising and falling edge of SCLK at a maximum frequency fC2. The 2-bit address can be latched-in at one clock, and 2-bit data can be read out at one clock, which means one bit at rising edge of clock, the other bit at falling edge of clock. The first address byte can be at any location. The address is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can be read out at a single FASTDTRD instruction. The address counter rolls over to 0 when the highest address has been reached. The sequence of issuing FASTDTRD instruction is: CS# goes low sending FASTDTRD instruction code (1bit per clock) 3-byte address on SI (2-bit per clock) 6-dummy clocks (default) on SI data out on SO (2-bit per clock) to end FASTDTRD operation can use CS# to high at any time during data out. (see Figure 19) While Program/Erase/Write Status Register cycle is in progress, FASTDTRD instruction is rejected without any impact on the Program/Erase/Write Status Register current cycle. (11) 2 x I/O Double Transfer Rate Read Mode (2DTRD) The 2DTRD instruction enables Double Transfer Rate throughput on dual I/O of Serial Flash in read mode. The address (interleave on dual I/O pins) is latched on both rising and falling edge of SCLK, and data (interleave on dual I/O pins) shift out on both rising and falling edge of SCLK at a maximum frequency fT2. The 4-bit address can be latched-in at one clock, and 4-bit data can be read out at one clock, which means two bits at rising edge of clock, the other two bits at falling edge of clock. The first address byte can be at any location. The address is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can be read out at a single 2DTRD instruction. The address counter rolls over to 0 when the highest address has been reached. Once writing 2DTRD instruction, the following address/dummy/ data out will perform as
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4-bit instead of previous 1-bit. The sequence of issuing 2DTRD instruction is: CS# goes low sending 2DTRD instruction (1-bit per clock) 24bit address interleave on SIO1 & SIO0 (4-bit per clock) 6-bit dummy clocks on SIO1 & SIO0 data out interleave on SIO1 & SIO0 (4-bit per clock) to end 2DTRD operation can use CS# to high at any time during data out (see Figure 21 for 2 x I/O Double Transfer Rate Read Mode Timing Waveform). While Program/Erase/Write Status Register cycle is in progress, 2DTRD instruction is rejected without any impact on the Program/Erase/Write Status Register current cycle. (12) 4 x I/O Double Transfer Rate Read Mode (4DTRD) The 4DTRD instruction enables Double Transfer Rate throughput on quad I/O of Serial Flash in read mode. A Quad Enable (QE) bit of status Register must be set to "1" before sending the 4DTRD instruction. The address(interleave on 4 I/O pins) is latched on both rising and falling edge of SCLK, and data (interleave on 4 I/O pins) shift out on both rising and falling edge of SCLK at a maximum frequency fQ2. The 8-bit address can be latched-in at one clock, and 8-bit data can be read out at one clock, which means four bits at rising edge of clock, the other four bits at falling edge of clock. The first address byte can be at any location. The address is automatically increased to the next higher address after each byte data is shifted out, so the whole memory can be read out at a single 4DTRD instruction. The address counter rolls over to 0 when the highest address has been reached. Once writing 4DTRD instruction, the following address/dummy/data out will perform as 8-bit instead of previous 1-bit. The sequence of issuing 4DTRD instruction is: CS# goes low sending 4DTRD instruction (1-bit per clock) 24bit address interleave on SIO3, SIO2, SIO1 & SIO0 (8-bit per clock) 8 dummy clocks data out interleave on SIO3, SIO2, SIO1 & SIO0 (8-bit per clock) to end 4DTRD operation can use CS# to high at any time during data out (see Figure 24 for 4 x I/O Read Mode Double Transfer Rate Timing Waveform). Another sequence of issuing enhanced mode of 4DTRD instruction especially useful in random access is : CS# goes low sending 4DTRD instruction (1-bit per clock) 3-bytes address interleave on SIO3, SIO2, SIO1 & SIO0 (8-bit per clock) performance enhance toggling bit P[7:0] 7 dummy clocks data out(8-bit per clock) still CS# goes high CS# goes low (eliminate 4 Read instruction) 24-bit random access address (see Figure 25 for 4x I/ O Double Transfer Rate read enhance performance mode timing waveform). While Program/Erase/Write Status Register cycle is in progress, 4DTRD instruction is rejected without any impact on the Program/Erase/Write Status Register current cycle. (13) Sector Erase (SE) The Sector Erase (SE) instruction is for erasing the data of the chosen sector to be "1". The instruction is used for any 4K-byte sector. A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before sending the Sector Erase (SE). Any address of the sector (see Table 6) is a valid address for Sector Erase (SE) instruction. The CS# must go high exactly at the byte boundary (the latest eighth of address byte been latched-in); otherwise, the instruction will be rejected and not executed. Address bits [Am-A12] (Am is the most significant address) select the sector address. The sequence of issuing SE instruction is: CS# goes low sending SE instruction code 3-byte address on SI CS# goes high. (see Figure 29) The self-timed Sector Erase Cycle time (tSE) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Sector Erase cycle is in progress. The WIP sets 1 during the
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tSE timing, and sets 0 when Sector Erase Cycle is completed, and the Write Enable Latch (WEL) bit is reset. If the sector is protected by BP3~0 (WPSEL=0), RL7~0, or by individual lock/permanent lock (WPSEL=1), the array data will be protected (no change) and the WEL bit still be reset. (14) Block Erase (BE) The Block Erase (BE) instruction is for erasing the data of the chosen block to be "1". The instruction is used for 64K-byte block erase operation. A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before sending the Block Erase (BE). Any address of the block (see table 6) is a valid address for Block Erase (BE) instruction. The CS# must go high exactly at the byte boundary (the latest eighth of address byte been latched-in); otherwise, the instruction will be rejected and not executed. The sequence of issuing BE instruction is: CS# goes low sending BE instruction code 3-byte address on SI CS# goes high. (see Figure 30) The self-timed Block Erase Cycle time (tBE) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Sector Erase cycle is in progress. The WIP sets 1 during the tBE timing, and sets 0 when Sector Erase Cycle is completed, and the Write Enable Latch (WEL) bit is reset. If the block is protected by BP3~0 (WPSEL=0), RL7~0, or by individual lock/permanent lock (WPSEL=1), the array data will be protected (no change) and the WEL bit still be reset. (15) Block Erase (BE32K) The Block Erase (BE32) instruction is for erasing the data of the chosen block to be "1". The instruction is used for 32K-byte block erase operation. A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before sending the Block Erase (BE32). Any address of the block (see table 6) is a valid address for Block Erase (BE32) instruction. The CS# must go high exactly at the byte boundary (the latest eighth of address byte been latched-in); otherwise, the instruction will be rejected and not executed. The sequence of issuing BE32 instruction is: CS# goes low sending BE32 instruction code 3-byte address on SI CS# goes high. The self-timed Block Erase Cycle time (tBE) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Sector Erase cycle is in progress. The WIP sets 1 during the tBE timing, and sets 0 when Sector Erase Cycle is completed, and the Write Enable Latch (WEL) bit is reset. If the block is protected by BP3~0 (WPSEL=0), RL7~0, or by individual lock/permanent lock (WPSEL=1), the array data will be protected (no change) and the WEL bit still be reset. (16) Chip Erase (CE) The Chip Erase (CE) instruction is for erasing the data of the whole chip to be "1". A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before sending the Chip Erase (CE). The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. The sequence of issuing CE instruction is: CS# goes low sending CE instruction code CS# goes high. (see Figure 31) The self-timed Chip Erase Cycle time (tCE) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Chip Erase cycle is in progress. The WIP sets 1 during the tCE timing, and sets 0 when Chip Erase Cycle is completed, and the Write Enable Latch (WEL) bit is reset. If the chip is
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protected the Chip Erase (CE) instruction will not be executed, but WEL will be reset. (17) Page Program (PP) The Page Program (PP) instruction is for programming the memory to be "0". A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit before sending the Page Program (PP). The device programs only the last 256 data bytes sent to the device. If the entire 256 data bytes are going to be programmed, A7A0 (The eight least significant address bits) should be set to 0. If the eight least significant address bits (A7-A0) are not all 0, all transmitted data going beyond the end of the current page are programmed from the start address of the same page (from the address A7-A0 are all 0). If more than 256 bytes are sent to the device, the data of the last 256-byte is programmed at the request page and previous data will be disregarded. If less than 256 bytes are sent to the device, the data is programmed at the requested address of the page without effect on other address of the same page. The sequence of issuing PP instruction is: CS# goes low sending PP instruction code 3-byte address on SIat least 1-byte on data on SI CS# goes high. (see Figure 26) The CS# must be kept to low during the whole Page Program cycle; The CS# must go high exactly at the byte boundary( the latest eighth bit of data being latched in), otherwise, the instruction will be rejected and will not be executed. The self-timed Page Program Cycle time (tPP) is initiated as soon as Chip Select (CS#) goes high. The Write in Progress (WIP) bit still can be check out during the Page Program cycle is in progress. The WIP sets 1 during the tPP timing, and sets 0 when Page Program Cycle is completed, and the Write Enable Latch (WEL) bit is reset. If the page is protected by BP3~0 (WPSEL=0), RL7~0, or by individual lock/permanent lock (WPSEL=1), the array data will be protected (no change) and the WEL bit will still be reset. (18) 4 x I/O Page Program (4PP) The Quad Page Program (4PP) instruction is for programming the memory to be "0". A Write Enable (WREN) instruction must execute to set the Write Enable Latch (WEL) bit and Quad Enable (QE) bit must be set to "1" before sending the Quad Page Program (4PP). The Quad Page Programming takes four pins: SIO0, SIO1, SIO2, and SIO3, which can raise programer performance and and the effectiveness of application of lower clock less than 20MHz. For system with faster clock, the Quad page program cannot provide more actual favors, because the required internal page program time is far more than the time data flows in. Therefore, we suggest that while executing this command (especially during sending data), user can slow the clock speed down to 20MHz below. The other function descriptions are as same as standard page program. The sequence of issuing 4PP instruction is: CS# goes low sending 4PP instruction code 3-byte address on SIO[3:0] at least 1-byte on data on SIO[3:0] CS# goes high. (see Figure 27) If the page is protected by BP3~0 (WPSEL=0), RL7~0, or by individual lock/permanent lock (WPSEL=1), the array data will be protected (no change) and the WEL bit will still be reset.
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The Program/Erase function instruction function flow is as follows: Program/Erase Flow(1) with read array data
Start
WREN command
RDSR command* No
WREN=1? Yes Program/erase command
Write program data/address (Write erase address)
RDSR command
WIP=0? Yes Read array data (same address of PGM/ERS)
No
Verify OK? Yes Program/erase successfully
No
Program/erase fail
Program/erase another block? No Program/erase completed
Yes * * Issue RDSR to check BP[3:0]. * If WPSEL=1, issue RDBLOCK to check the block status.
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Program/Erase Flow(2) without read array data
Start
WREN command
RDSR command* No
WREN=1? Yes Program/erase command
Write program data/address (Write erase address)
RDSR command
WIP=0?
No
Yes Read array data (same address of PGM/ERS)
Verify ok? No Program/erase successfully
Yes
Program/erase fail CLSR(30h) command
Program/erase another block? No Program/erase completed
Yes * Issue RDSR to check BP[3:0]. * If WPSEL=1, issue RDBLOCK to check the block status.
P/N: PM1466
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(19) Continuously program mode (CP mode) The CP mode may enhance program performance by automatically increasing address to the next higher address after each byte data has been programmed. The Continuously program (CP) instruction is for multiple byte program to Flash. A write Enable (WREN) instruction must execute to set the Write Enable Latch(WEL) bit before sending the Continuously program (CP) instruction. CS# requires to go high before CP instruction is executing. After CP instruction and address input, two bytes of data is input sequentially from MSB(bit7) to LSB(bit0). The first byte data will be programmed to the initial address range with A0=0 and second byte data with A0=1. If only one byte data is input, the CP mode will not process. If more than two bytes data are input, the additional data will be ignored and only two byte data are valid. Any byte to be programmed should be in the erase state (FF) first. It will not roll over during the CP mode, once the last unprotected address has been reached, the chip will exit CP mode and reset write Enable Latch bit (WEL) as "0" and CP mode bit as "0". Please check the WIP bit status if it is not in write progress before entering next valid instruction. During CP mode, the valid commands are CP command (AD hex), WRDI command (04 hex), RDSR command (05 hex), and RDSCUR command (2B hex). And the WRDI command is valid after completion of a CP programming cycle, which means the WIP bit=0. The sequence of issuing CP instruction is : CS# high to low sending CP instruction code 3-byte address on SI pin two data bytes on SI CS# goes high to low sending CP instruction and then continue two data bytes are programmed CS# goes high to low till last desired two data bytes are programmed CS# goes high to low sending WRDI (Write Disable) instruction to end CP mode send RDSR instruction to verify if CP mode word program ends, or send RDSCUR to check bit4 to verify if CP mode ends. (see Figure 28 of CP mode timing waveform) Three methods to detect the completion of a program cycle during CP mode: 1) Software method-I: by checking WIP bit of Status Register to detect the completion of CP mode. 2) Software method-II: by waiting for a tBP time out to determine if it may load next valid command or not. 3) Hardware method: by writing ESRY (enable SO to output RY/BY#) instruction to detect the completion of a program cycle during CP mode. The ESRY instruction must be executed before CP mode execution. Once it is enable in CP mode, the CS# goes low will drive out the RY/BY# status on SO, "0" indicates busy stage, "1" indicates ready stage, SO pin outputs tri-state if CS# goes high. DSRY (disable SO to output RY/BY#) instruction to disable the SO to output RY/BY# and return to status register data output during CP mode. Please note that the ESRY/DSRY command are not accepted unless the completion of CP mode. If the page is protected by BP3~0 (WPSEL=0), RL7~0, or by individual lock/permanent lock (WPSEL=1), the array data will be protected (no change) and the WEL bit will still be reset. (20) Parallel Mode (Highly recommended for production throughputs increasing) The parallel mode provides 8 bit inputs/outputs for increasing throughputs of factory production purpose. The parallel mode requires 55h command code, after writing the parallel mode command and then CS# going high, after that, the Memory can be available to accept read/program/read status/read ID/RES/REMS command as the normal writing command procedure. a. Only effective for Read Array for normal read(not FAST_READ), Read ID, Page Program, RES and REMS write data period. b. For normal write command (by SI), No effect c. Under parallel mode, the fastest access clock freq. will be changed to 6MHz(SCLK pin clock freq.) d. For parallel mode, the tV will be change to 70ns.
P/N: PM1466
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(21) Deep Power-down (DP) The Deep Power-down (DP) instruction is for setting the device on the minimizing the power consumption (to entering the Deep Power-down mode), the standby current is reduced from ISB1 to ISB2). The Deep Power-down mode requires the Deep Power-down (DP) instruction to enter, during the Deep Power-down mode, the device is not active and all Write/Program/Erase instruction are ignored. When CS# goes high, it's only in standby mode not deep power-down mode. It's different from Standby mode. The sequence of issuing DP instruction is: CS# goes low sending DP instruction code CS# goes high. (see Figure 32) Once the DP instruction is set, all instruction will be ignored except the Release from Deep Power-down mode (RDP) and Read Electronic Signature (RES) instruction. (those instructions allow the ID being reading out). When Powerdown, the deep power-down mode automatically stops, and when power-up, the device automatically is in standby mode. For RDP instruction the CS# must go high exactly at the byte boundary (the latest eighth bit of instruction code been latched-in); otherwise, the instruction will not executed. As soon as Chip Select (CS#) goes high, a delay of tDP is required before entering the Deep Power-down mode and reducing the current to ISB2. (22) Release from Deep Power-down (RDP), Read Electronic Signature (RES) The Release from Deep Power-down (RDP) instruction is terminated by driving Chip Select (CS#) High. When Chip Select (CS#) is driven High, the device is put in the standby Power mode. If the device was not previously in the Deep Power-down mode, the transition to the standby Power mode is immediate. If the device was previously in the Deep Power-down mode, though, the transition to the standby Power mode is delayed by tRES2, and Chip Select (CS#) must remain High for at least tRES2(max), as specified in Table 10. Once in the standby mode, the device waits to be selected, so that it can receive, decode and execute instructions. RES instruction is for reading out the old style of 8-bit Electronic Signature, whose values are shown as table of ID Definitions. This is not the same as RDID instruction. It is not recommended to use for new design. For new design, please use RDID instruction. Even in Deep power-down mode, the RDP and RES are also allowed to be executed, only except the device is in progress of program/erase/write cycles; there's no effect on the current program/erase/ write cycles in progress. The sequence is shown as Figure 33,34. The RES instruction is ended by CS# goes high after the ID been read out at least once. The ID outputs repeatedly if continuously send the additional clock cycles on SCLK while CS# is at low. If the device was not previously in Deep Power-down mode, the device transition to standby mode is immediate. If the device was previously in Deep Power-down mode, there's a delay of tRES2 to transit to standby mode, and CS# must remain to high at least tRES2(max). Once in the standby mode, the device waits to be selected, so it can be receive, decode, and execute instruction. The RDP instruction is for releasing from Deep Power-down Mode. (23) Read Electronic Manufacturer ID & Device ID (REMS), (REMS2), (REMS4), (REMS4D) The REMS, REMS2, REMS4 and REMS4D instruction provides both the JEDEC assigned Manufacturer ID and the specific Device ID. The instruction is initiated by driving the CS# pin low and shift the instruction code "90h", "EFh", "DFh" or "CFh" followed by two dummy bytes and one bytes address (A7~A0). After which, the Manufacturer ID for MXIC (C2h) and the Device ID are shifted out on the falling edge of SCLK with most significant bit (MSB) first as shown in Figure 35. The Device ID values are listed in table of ID Definitions. If the one-byte address is initially set to 01h, then the DeP/N: PM1466 REV. 0.05, MAR. 05, 2009
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vice ID will be read first and then followed by the Manufacturer ID. The Manufacturer and Device IDs can be read continuously, alternating from one to the other. The instruction is completed by driving CS# high. Table 6. ID Definitions RDID Command RES Command REMS/REMS2/REMS4/ REMS4D Command manufacturer ID C2 manufacturer ID C2 memory type 26 electronic ID 88 device ID 88 memory density 18
(24) Enter Secured OTP (ENSO) The ENSO instruction is for entering the additional 4K-bit Secured OTP mode. The additional 4K-bit Secured OTP is independent from main array, which may use to store unique serial number for system identifier. After entering the Secured OTP mode, and then follow standard read or program, procedure to read out the data or update data. The Secured OTP data cannot be updated again once it is lock-down. The sequence of issuing ENSO instruction is: CS# goes lowsending ENSO instruction to enter Secured OTP mode CS# goes high. Please note that WRSR/WRSCUR/WPSEL/SBLK/GBLK/SBULK/GBULK/CE/BE/SE/BE32K commands are not acceptable during the access of secure OTP region, once Security OTP is lock down, only read related commands are valid. (25) Exit Secured OTP (EXSO) The EXSO instruction is for exiting the additional 4K-bit Secured OTP mode. The sequence of issuing EXSO instruction is: CS# goes low sending EXSO instruction to exit Secured OTP mode-> CS# goes high.
(26) Read Security Register (RDSCUR) The RDSCUR instruction is for reading the value of Security Register. The Read Security Register can be read at any time (even in program/erase/write status register/write security register condition) and continuously. The sequence of issuing RDSCUR instruction is : CS# goes low send ing RDSCUR instruction Security Register data out on SO CS# goes high. The definition of the Security Register is as below: Secured OTP Indicator bit. The Secured OTP indicator bit shows the chip is locked by factory before ex- factory or not. When it is "0", it indicates non- factory lock; "1" indicates factory- lock. Lock-down Secured OTP (LDSO) bit. By writing WRSCUR instruction, the LDSO bit may be set to "1" for customer lock-down purpose. However, once the bit is set to "1" (lock-down), the LDSO bit and the 4K-bit Secured OTP area cannot be update any more. While it is in 4K-bit Secured OTP mode, array access is not allowed.
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Continuously Program Mode( CP mode) bit. The Continuously Program Mode bit indicates the status of CP mode, "0" indicates not in CP mode; "1" indicates in CP mode. Program Fail Flag bit. While a program failure happened, the Program Fail Flag bit would be set. This bit will also be set when the user attempts to program a protected main memory region or a locked OTP region. This bit can indicate whether one or more of program operations fail, and can be reset by command CLSR (30h) Erase Fail Flag bit. While a erase failure happened, the Erase Fail Flag bit would be set. This bit will also be set when the user attempts to erase a protected main memory region or a locked OTP region. This bit can indicate whether one or more of erase operations fail, and can be reset by command CLSR (30h) Write Protection Select bit. The Write Protection Select bit indicates that WPSEL has been executed successfully. Once this bit has been set (WPSEL=1), all the blocks or sectors will be write-protected after the power-on every time. Once WPSEL has been set, it cannot be changed again, which means it's only for individual WP mode. Under the individual block protection mode (WPSEL=1), hardware protection is performed by driving WP#=0. Once WP#=0 all array blocks/sectors are protected regardless of the contents of SRAM lock bits and Permanent Lock bits. Security Register Definition bit7 WPSEL bit6 E_FAIL bit5 P_FAIL bit4 Continuously Program mode (CP mode) 0=normal Program mode 1=CP mode (default=0) bit3 x bit2 x bit1 LDSO (indicate if lock-down 0 = not lockdown 1 = lockdown (cannot program/ erase OTP) non-volatile bit bit0 Secrured OTP indicator bit 0= nonfactory lock 1 = factory lock
0=normal WP mode 1=individual WP mode (default=0)
0=normal Erase succeed 1=indicate Erase failed (default=0)
0=normal Program succeed 1=indicate Program failed (default=0) volatile bit
reserved
reserved
non-volatile bit
volatile bit
volatile bit
volatile bit
volatile bit
non-volatile bit
(27) Write Security Register (WRSCUR) The WRSCUR instruction is for changing the values of Security Register Bits. Unlike write status register, the WREN instruction is not required before sending WRSCUR instruction. The WRSCUR instruction may change the values of bit1 (LDSO bit) for customer to lock-down the 4K-bit Secured OTP area. Once the LDSO bit is set to "1", the Secured OTP area cannot be updated any more. The sequence of issuing WRSCUR instruction is :CS# goes low-> sending WRSCUR instruction -> CS# goes high. The CS# must go high exactly at the boundary; otherwise, the instruction will be rejected and not executed.
P/N: PM1466
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(28) GPIO Expander GPIO expander is used for microcontrollers to expand the general purpose I/O pin with 7 extra General Purpose Input/Outputs. The outputs provided can be used for controlling simple on-off of system components. (28-1) GPIO Function Enable (GPIOEN) The GPIOEN instruction is for enabling the function of GPIO mode. For all of GPIO commands like GPIORW, GPIORST, and GPIODIS, they should be issued after GPIOEN is set. GPIO is not allowed in parallel mode and POR read, but it is allowed in the other modes even in Deep Power down (DPW). If GPIO is active in DPW mode, the ISB2 may increase more than 40uA (see Table 9). The sequence of issuing GPIOEN instruction is: CS# goes low -> GPIOEN instruction code is sent -> CS# goes high. The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. (28-2) GPIO Function Disable (GPIODIS) The GPIODIS instruction is for disabling the function of GPIO mode. Moreover, the GPIO function is also disabled after POR, and all of the GPIO registers will be reset if GPIO function is disabled. GPIOEN should be issued before the setting of GPIODIS instruction to make sure the GPIO function is enabled, or the GPIODIS instruction will not be executed. After GPIODIS is issued, other GPIO command will not be executed until GPIOEN is set again. The sequence of issuing GPIODIS instruction is: CS# goes low -> GPIODIS instruction code is sent -> CS# goes high. The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. (28-3) GPIO Register Read/Write (GPIORW) The GPIORW instruction is for changing the GPIO registers. Read and Write operation can be judged by bit7 of address byte. Read operation will be executed when bit7 = 1 and write operation will be executed when bit7 = 0. The read/write operation is described in Table 10. GPIOEN should be issued before the setting of GPIORW instruction to make sure the GPIO function is enabled, or the GPIORW instruction will not be executed. The sequence of issuing GPIORW instruction is: CS# goes low -> GPIORW instruction code is sent -> issue R/W# bit (Write as 0; Read as 1) and address bit (A6~A0) ->SI/SO 8 bit data in/out cycle -> CS# goes high. The GPIO read/write waveform is shown as Figure 40 and Figure 41. The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. (28-4) GPIO Register Reset (GPIORST) The GPIORST instruction is for resetting all the GPIO registers. The GPIO registers will be reset to 0 (default value) if GPIORST or POR is issued. GPIOEN should be issued before the setting of GPIORST instruction to make sure
P/N: PM1466
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the GPIO function is enabled, or the GPIORST instruction will not be executed. The sequence of issuing GPIORST instruction is: CS# goes low -> GPIORST instruction code is sent -> CS# goes high. The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed.
GPIO register definition is as follows: Register Name D[6:0] GPDC[6:0] GPOM[6:0] Reg. Address A[6:0] 0x00 0x01 Description GPIO Pin Direction Configuration GPIO Pin Output Mode 0:Configured as input pin 1: Configured as output pin 0: Open drain Reg. Value after POR/GPIO reset 0000000 0000000
GPWD[6:0] GPST[6:0] GPPU[6:0] GPPD[6:0] GPDS[6:0] GPRD[6:0] GPII[6:0] GPOI[6:0]
0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09
GPOS[6:0]
0x0C
1:Push-pull Valid only when GPDC[n]=1 0: Data="0" GPIO Pin Write Data 1: Data="1" It's only valid for output pins. GPIO Pin Smitt 0: Disable Trigger enable 1: Enable GPIO Pin pull-up 0: Disable resistor enable 1: ~50K to VDD GPIO Pin pull-down 0: Disable resistor enable 1: ~50K to GND GPIO Pin Driving 0: 2mA (weak) Strength 1: 4mA (strong) 0: data="0" GPIO Pin Read Data 1: data="1" 0: No inversion GPIO Pin Input Inversion 1: Inversion enable 0: No inversion GPIO Pin Output Inversion 1: Inversion enable 0 : Disable 1 : Enable GPIO one shot enable (When pin value is "1", keep "1" until GPRD[n] is written "1")
0000000 0000000 0000000 0000000 0000000 0000000 0000000 0000000
0000000
P/N: PM1466
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(29) Write Protection Selection (WPSEL) When the system accepts and executes WPSEL instruction, the bit 7 in security register will be set. It will activate SBLK, SBULK, RDBLOCK, GBLK, GBULK etc instructions to conduct block lock protection and replace the original Software Protect Mode (SPM) use (BP3~BP0) indicated block methods. The sequence of issuing WPSEL instruction is: CS# goes low sending WPSEL instruction to enter the individual block protect mode CS# goes high. Every time after the system is powered-on, and the Security Register bit 7 is checked to be WPSEL=1, all the blocks or sectors will be write protected by default. User may only unlock the blocks or sectors via SBULK and GBULK instruction. Program or erase functions can only be operated after the Unlock instruction is conducted. Under the individual block protection mode (WPSEL=1), hardware protection is performed by driving WP#=0. Once WP#=0 all array blocks/sectors are protected regardless of the contents of SRAM lock bits and Permanent Lock bits. WPSEL instruction function flow is as follows: WPSEL Flow
start
RDSCUR(2Bh) command
WPSEL=1? No WPSEL disable, block protected by BP[3:0]
Yes
WPSEL(68h) command
RDSR command
WIP=0? Yes RDSCUR(2Bh) command
No
WPSEL=1? Yes WPSEL set successfully
No
WPSEL set fail
WPSEL enable. Block protected by individual lock (SBLK, SBULK, ... etc).
P/N: PM1466
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(30) Single Block Lock/Unlock Protection (SBLK/SBULK) These instructions are only effective after WPSEL was executed. The SBLK instruction is for write protection a specified block(or sector) of memory, using A23-A16 or (A23-A12) address bits to assign a 64Kbyte block (or 4K bytes sector) to be protected as read only. The SBULK instruction will cancel the block (or sector) write protection state. This feature allows user to stop protecting the entire block (or sector) through the chip unprotect command (GBULK). The WREN (Write Enable) instruction is required before issuing SBLK/SBULK instruction. The sequence of issuing SBLK/SBULK instruction is: CS# goes low send SBLK/SBULK (36h/39h) instructionsend 3 address bytes assign one block (or sector) to be protected on SI pin CS# goes high. (see Figure 41) The CS# must go high exactly at the byte boundary, otherwise the instruction will be rejected and not be executed. SBLK/SBULK instruction function flow is as follows: Block Lock Flow
Start
RDSCUR(2Bh) command
WPSEL=1? Yes WREN command
No
WPSEL command
SBLK command ( 36h + 24bit address )
RDSR command
WIP=0? Yes RDBLOCK command ( 3Ch + 24bit address )
No
Data = FFh ? Yes Block lock successfully
No
Block lock fail
Lock another block? No Block lock completed
Yes
P/N: PM1466
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Block Unlock Flow
start
RDSCUR(2Bh) command
WPSEL=1? Yes WREN command
No
WPSEL command
SBULK command ( 39h + 24bit address )
RDSR command
WIP=0? Yes RDPLOCK command to verify
No
Data = FFh ? Yes Block is permanently locked, cannot be unlocked
No
RDBLOCK command to verify ( 3Ch + 24bit address )
Data = FF ? No Block unlock successfully
Yes
Block unlock fail
Unlock another block?
Yes
Unlock block completed?
P/N: PM1466
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(31) Read Block Lock Status (RDBLOCK) This instruction is only effective after WPSEL was executed. The RDBLOCK instruction is for reading the status of protection lock of a specified block(or sector), using A23-A16 (or A23-A12) address bits to assign a 64K bytes block (4K bytes sector) and read protection lock status bit which the first byte of Read-out cycle. The status bit is"1" to indicate that this block has be protected, that user can read only but cannot write/program /erase this block. The status bit is "0" to indicate that this block hasn't be protected, and user can read and write this block. The sequence of issuing RDBLOCK instruction is: CS# goes low send RDBLOCK (3Ch) instruction send 3 address bytes to assign one block on SI pin read block's protection lock status bit on SO pin CS# goes high. (see Figure 42) (32) Gang Block Lock/Unlock (GBLK/GBULK) These instructions are only effective after WPSEL was executed. The GBLK/GBULK instruction is for enable/disable the lock protection block of the whole chip. The WREN (Write Enable) instruction is required before issuing GBLK/GBULK instruction. The sequence of issuing GBLK/GBULK instruction is: CS# goes low send GBLK/GBULK (7Eh/98h) instruction CS# goes high. (see Figure 43) The CS# must go high exactly at the byte boundary, otherwise, the instruction will be rejected and not be executed. (33) Clear SR Fail Flags (CLSR) The CLSR instruction is for resetting the Program/Erase Fail Flag bit of Security Register. It should be executed before program/erase another block during programing/erasing flow without read array data. The sequence of issuing CLSR instruction is: CS# goes low send CLSR instruction code CS# goes high. The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. (34) Output Driving Configure (ODC) The ODC instruction is for changing the option value of output driving or sinking. The options of output current are shown as follow table. In this table, bit [3:2] is for PMOS driving option and bit [1:0] is for NMOS sinking option. The sequence of issuing ODC instruction is: CS# goes low send ODC instruction code set 8bit ODC data on SI (bit [7:4] don't care) CS# goes high. The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. Output Drive current option Output Driving Bit [3:2] Note Current 11 2mA For GPIO 10 1mA For GPIO 01 6mA 00 4mA
P/N: PM1466
Output Sink current option Output Sinking Bit [1:0] Note Current 11 -2mA For GPIO 10 -1mA For GPIO 01 -6mA 00 -4mA
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(35) Enable SO to Output RY/BY# (ESRY) The ESRY instruction is for outputing the ready/busy status to SO during CP mode. The sequence of issuing ESRY instruction is: CS# goes low sending ESRY instruction code CS# goes high. The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. (36) Disable SO to Output RY/BY# (DSRY) The DSRY instruction is for resetting ESRY during CP mode. The ready/busy status will not output to SO after DSRY issued. The sequence of issuing DSRY instruction is: CS# goes low send DSRY instruction code CS# goes high. The CS# must go high exactly at the byte boundary; otherwise, the instruction will be rejected and not executed. (37) Enter CFI Mode (ENCFI) TBD
P/N: PM1466
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POWER-ON STATE
The device is at below states when power-up: - Standby mode ( please note it is not Deep Power-down mode) - Write Enable Latch (WEL) bit is reset The device must not be selected during power-up and power-down stage unless the VCC achieves below correct level: - VCC minimum at power-up stage and then after a delay of tVSL - GND at power-down Please note that a pull-up resistor on CS# may ensure a safe and proper power-up/down level. An internal Power-on Reset (POR) circuit may protect the device from data corruption and inadvertent data change during power up state. For further protection on the device, if the VCC does not reach the VCC minimum level, the correct operation is not guaranteed. The read, write, erase, and program command should be sent after the below time delay: - tVSL after VCC reached VCC minimum level The device can accept read command after VCC reached VCC minimum and a time delay of tVSL. Please refer to the figure of "Power-up Timing". Note: - To stabilize the VCC level, the VCC rail decoupled by a suitable capacitor close to package pins is recommended. (generally around 0.1uF)
P/N: PM1466
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ELECTRICAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS RATING Ambient Operating Temperature Storage Temperature Applied Input Voltage Applied Output Voltage VCC to Ground Potential Industrial grade VALUE -40C to 85C -55C to 125C -0.5V to 4.6V -0.5V to 4.6V -0.5V to 4.6V
NOTICE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is stress rating only and functional operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended period may affect reliability. 2. Specifications contained within the following tables are subject to change. 3. During voltage transitions, all pins may overshoot Vss to -2.0V and Vcc to +2.0V for periods up to 20ns, see Figure 2, 3.
Figure 2. Maximum Negative Overshoot Waveform
20ns 20ns
Figure 3. Maximum Positive Overshoot Waveform
20ns
Vss
Vcc + 2.0V
Vss-2.0V
20ns
Vcc
20ns 20ns
CAPACITANCE TA = 25C, f = 1.0 MHz SYMBOL PARAMETER CIN COUT Input Capacitance Output Capacitance MIN. TYP MAX. 6 8 UNIT pF pF CONDITIONS VIN = 0V VOUT = 0V
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Figure 4. INPUT TEST WAVEFORMS AND MEASUREMENT LEVEL
Input timing referance level 0.8VCC 0.7VCC 0.8V AC Measurement Level Output timing referance level
0.5VCC
0.2VCC
Note: Input pulse rise and fall time are <5ns
Figure 5. OUTPUT LOADING
DEVICE UNDER TEST
2.7K ohm
+3.3V
CL
6.2K ohm
DIODES=IN3064 OR EQUIVALENT
CL=30pF Including jig capacitance (CL=15pF Including jig capacitance for 104MHz, 70MHz@2xI/O and 70MHz@4xI/O)
P/N: PM1466
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Table 7. DC CHARACTERISTICS (Temperature = -40C to 85C for Industrial grade, VCC = 2.7V ~ 3.6V) SYMBOL PARAMETER ILI ILO ISB1 ISB2 Input Load Current Output Leakage Current VCC Standby Current Deep Power-down Current NOTES 1 1 1 MIN. MAX. 2 2 100 40 45 ICC1 VCC Read 1 40 30 ICC2 ICC3 ICC4 ICC5 VIL VIH VOL VOH VCC Program Current (PP) VCC Write Status Register (WRSR) Current VCC Sector Erase Current (SE) VCC Chip Erase Current (CE) Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage VCC-0.2 1 25 20 1 1 -0.5 25 20 0.8 0.7VCC VCC+0.4 0.4 UNITS TEST CONDITIONS uA uA uA uA mA mA mA mA mA mA mA V V V V IOL = 1.6mA; IOL=140uA for Parallel mode IOH = -100uA; IOH=65uA for Parallel mode VCC = VCC Max, VIN = VCC or GND VCC = VCC Max, VIN = VCC or GND VIN = VCC or GND, CS# = VCC VIN = VCC or GND, CS# = VCC f=104MHz, fQ=75MHz (2 x I/O read) SCLK=0.1VCC/0.9VCC, SO=Open f=66MHz, fT=75MHz (4 x I/O read) SCLK=0.1VCC/0.9VCC, SO=Open f=33MHz, SCLK=0.1VCC/0.9VCC, SO=Open Program in Progress, CS# = VCC Program status register in progress, CS#=VCC Erase in Progress, CS#=VCC Erase in Progress, CS#=VCC
Notes : 1. Typical values at VCC = 3.3V, T = 25C. These currents are valid for all product versions (package and speeds). 2. Typical value is calculated by simulation.
P/N: PM1466
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Table 8. AC CHARACTERISTICS (Temperature = -40C to 85C for Industrial grade, VCC = 2.7V ~ 3.6V) Symbol fSCLK fRSCLK Alt. Parameter fC fR fT fQ Clock Frequency for the following instructions: FAST_READ, PP, SE, BE, CE, DP, RES,RDP WREN, WRDI, RDID, RDSR, WRSR Clock Frequency for READ instructions Clock Frequency for 2READ instructions Clock Frequency for 4READ instructions Serial Parallel/GPIO Min. D.C. D.C. Max. 104 (Condition:15pF) 66 (Condition:30pF) 6 50 70 70 (Condition:15pF) 50 50 50 20 Unit MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz ns ns ns ns V/ns V/ns V/ns V/ns ns ns ns ns ns ns ns ns ns ns ns 10 8 20 9 9.5 12 70 9.5 2 20 100 ns ns ns ns ns ns ns ns ns ns ns
fTSCLK
f4PP tCH(1) tCL(1) tCLCH(2) tCHCL(2) tSLCH tCHSL tDVCH tCHDX tCHSH tSHCH
fC2 Clock Frequency for FASTDTRRD instructions fT2 Clock Frequency for 2DTRRD instructions fQ2 Clock Frequency for 4DTRRD instructions Clock Frequency for 4PP (Quad page program) tCLH Clock High Time tCLL Clock Low Time Clock Rise Time (3) (peak to peak) Clock Fall Time (3) (peak to peak) tCSS CS# Active Setup Time (relative to SCLK) CS# Not Active Hold Time (relative to SCLK) tDSU Data In Setup Time tDH Data In Hold Time CS# Active Hold Time (relative to SCLK) CS# Not Active Setup Time (relative to SCLK)
Serial Parallel/GPIO Serial Parallel/GPIO Serial Parallel/GPIO Serial Parallel/GPIO
Serial Parallel Serial Parallel Serial Parallel/GPIO Read Write/Erase/ Program 2.7V-3.6V Serial 3.0V-3.6V Serial Parallel/GPIO 1 I/O 2 I/O & 4 I/O 2 I/O & 4 I/O Parallel/GPIO 1 I/O, 2 I/O & 4 I/O
tSHSL(3) tCSH CS# Deselect Time
5.5 30 5.5 30 0.1 0.25 0.1 0.25 8 5 2 10 5 10 5 30 8 15 50
tSHQZ(2) tDIS Output Disable Time
tCLQV tCLQV2
tV tV2
Clock Low to Output Valid VCC=2.7V~3.6V
Loading: 15pF Loading: 30pF
Clock Low to Output Valid (DTR mode) VCC=2.7V~3.6V, Loading: 15pF tCLQX tHO Output Hold Time tWHSL(4) Write Protect Setup Time tSHWL(4) Write Protect Hold Time
P/N: PM1466
REV. 0.05, MAR. 05, 2009
41
MX25L12855E
Symbol tDP(2) tRES1(2) tRES2(2) tW tBP tPP tSE tBE tBE tCE tRESE tFALL tLEAD tLAG tPL tWRLR tWPS tWSR Alt. Parameter CS# High to Deep Power-down Mode CS# High to Standby Mode without Electronic Signature Read CS# High to Standby Mode with Electronic Signature Read Write Status Register Cycle Time Byte-Program Page Program Cycle Time Sector Erase Cycle Time (4KB) Block Erase Cycle Time (64KB) Block Erase Cycle Time (32KB) Chip Erase Cycle Time tr GPIO [6:0] 20%~80% at 3V tf GPIO [6:0] 20%~80% at 3V GPIO enable lead time (CS# Low to SCLK High) GPIO enable lag time (SCLK Low to CS# High) Permanent Lock Time Write Read Lock Register Time Write Protection Selection Time Write Security Register Time Min. Typ. Max. 10 100 100 40 9 1.4 90 0.7 0.5 80 100 300 5 300 2 2 512 Unit us us us ms us ms ms s s s ns ns ns ns ms ms ms ms
70 90
60 60 1 100 1 1
Notes: 1. tCH + tCL must be greater than or equal to 1/ fC. 2. Value guaranteed by characterization, not 100% tested in production. 3. tSHSL=15ns from read instruction, tSHSL=50ns from Write/Erase/Program instruction. 4. Only applicable as a constraint for a WRSR instruction when SRWD is set at 1. 5. Test condition is shown as Figure 4, 5. 6. Only valid in output phase delay configuration "00".
P/N: PM1466
REV. 0.05, MAR. 05, 2009
42
MX25L12855E
Timing Analysis
Figure 6. Serial Input Timing
tSHSL CS# tCHSL SCLK tDVCH tCHDX SI MSB tCLCH LSB tCHCL tSLCH tCHSH tSHCH
SO
High-Z
Figure 7. Output Timing
CS# tCH SCLK tCLQV tCLQX SO tQLQH tQHQL SI
ADDR.LSB IN
tCLQV tCLQX
tCL
tSHQZ
LSB
P/N: PM1466
REV. 0.05, MAR. 05, 2009
43
MX25L12855E
Figure 8. Serial Input Timing for Double Transfer Rate Mode
tSHSL CS# tCHSL SCLK tDVCH tDVCH tCHDX SI
MSB tSLCH
tCHSH
tSHCH
tCHCL
tCHDX
tCLCH LSB
SO
High-Z
Figure 9. Serial Output Timing for Double Transfer Rate Mode
CS# tCH SCLK tCLQV2 tCLQX SO tQLQH tQHQL SI
ADDR.LSB IN
tCLQV2 tCLQX
tCLQV2
tCL
tSHQZ
LSB
P/N: PM1466
REV. 0.05, MAR. 05, 2009
44
MX25L12855E
Figure 10. WP# Setup Timing and Hold Timing during WRSR when SRWD=1
WP# tWHSL CS# 0 SCLK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
tSHWL
SI
01
SO
High-Z
Figure 11. Write Enable (WREN) Sequence (Command 06)
CS# 0 SCLK Command SI 06 High-Z 1 2 3 4 5 6 7
SO
Figure 12. Write Disable (WRDI) Sequence (Command 04)
CS# 0 SCLK Command SI 04 High-Z 1 2 3 4 5 6 7
SO
P/N: PM1466
REV. 0.05, MAR. 05, 2009
45
MX25L12855E
Figure 13. Read Identification (RDID) Sequence (Command 9F)
CS# 0 SCLK Command SI 9F Manufacturer Identification SO High-Z 7 MSB 6 5 3 2 1 Device Identification 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 28 29 30 31
0 15 14 13 MSB
Figure 14. Read Identification (RDID) Sequence (Parallel)
CS# 0 SCLK Command SI 9F Manufacturer Identification PO7~0 High-Z 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Device Identification
Notes : 1. Under parallel mode, the fastest access clock freg. will be changed to 6MHz(SCLK pin clock freg.) To read identification in parallel mode, which requires a parallel mode command (55h) before the read identification command. To exit parallel mode, it requires a (45h) command or power-off/on sequence. 2. There are 3 data bytes which would be output sequentially for Manufacturer and Device ID 1'st byte (Memory Type) and Device ID 2'nd byte (Memory Density).
P/N: PM1466
REV. 0.05, MAR. 05, 2009
46
MX25L12855E
Figure 15. Read Status Register (RDSR) Sequence (Command 05)
CS# 0 SCLK command SI High-Z SO 7 MSB 05 Status Register Out 6 5 4 3 2 1 0 7 MSB Status Register Out 6 5 4 3 2 1 0 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Figure 16. Write Status Register (WRSR) Sequence (Command 01)
CS# 0 SCLK command Status Register In 7 MSB 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
SI
01
SO
High-Z
P/N: PM1466
REV. 0.05, MAR. 05, 2009
47
MX25L12855E
Figure 17. Read Data Bytes (READ) Sequence (Command 03)
CS# 0 SCLK command 24-Bit Address 1 2 3 4 5 6 7 8 9 10 28 29 30 31 32 33 34 35 36 37 38 39
SI
03
23 22 21 MSB
3
2
1
0 Data Out 1 7 6 5 4 3 2 1 0 Data Out 2 7
High-Z SO
MSB
Figure 18. Read at Higher Speed (FAST_READ) Sequence (Command 0B)
CS# 0 SCLK Command 24 BIT ADDRESS 1 2 3 4 5 6 7 8 9 10 28 29 30 31
SI
0B High-Z
23 22 21
3
2
1
0
SO
CS# 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 SCLK Dummy Cycles
SI
7
6
5
4
3
2
1
0 DATA OUT 1 DATA OUT 2 1 0 7 MSB 6 5 4 3 2 1 0 7 MSB
SO
7 MSB
6
5
4
3
2
P/N: PM1466
REV. 0.05, MAR. 05, 2009
48
MX25L12855E
Figure 19. Fast DT Read (FASTDTRD) Sequence (Command 0D)
CS#
SCLK
0
...
7
8
...
19
...
25
26
27
28
29
30
31
32
......
8-Bit Instruction
12-Bit Address
A23 A22 A1 A0
6 Dummy Cycles
Data output
SI/SIO0 SO/SIO1 WP#
0D (hex)
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
Figure 20. 2 x I/O Read Mode Sequence (Command BB)
CS# 0 SCLK
8 Bit Instruction 12 Address Cycle
4 dummy cycle
1
2
3
4
5
6
7
8
9 10 11
18 19 20 21 22 23 24 25 26 27
Data Output
SI/SIO0
BB(hex)
address bit22, bit20, bit18...bit0
dummy
data bit6, bit4, bit2...bit0, bit6, bit4....
SO/SIO1
High Impedance
address bit23, bit21, bit19...bit1
dummy
data bit7, bit5, bit3...bit1, bit7, bit5....
P/N: PM1466
REV. 0.05, MAR. 05, 2009
49
MX25L12855E
Figure 21. Fast Dual I/O DT Read (2DTRD) Sequence (Command BD)
CS#
SCLK
0
...
7
8
...
13
...
19
20
21
22
23
24
25
26
......
8-Bit Instruction
6-Bit Address
A22 A20 A2 A0
6 Dummy Cycles
Data output
SI/SIO0 SO/SIO1 WP#
BD (hex)
D6 D4 D2 D0 D6 D4 D2 D0 D6 D4 D2 D0 D6 D4 D2
A23 A21
A3
A1
D7 D5 D3 D1 D7 D5 D3 D1 D7 D5 D3 D1 D7 D5 D3
Figure 22. 4 x I/O Read Mode Sequence (Command EB)
CS# 0 SCLK
8 Bit Instruction 6 Address cycles
4 dummy cycles
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
n
Performance enhance indicator (Note 1,2)
Data Output
SI/SIO0
EB(hex)
address bit20, bit16..bit0 address bit21, bit17..bit1
P4 P0
data bit4, bit0, bit4....
SO/SIO1
High Impedance
P5 P1
data bit5 bit1, bit5....
WP#/SIO2
High Impedance
address bit22, bit18..bit2
P6 P2
data bit6 bit2, bit6....
NC/SIO3
High Impedance
address bit23, bit19..bit3
P7 P3
data bit7 bit3, bit7....
Note: 1. Hi-impedance is inhibited for the two clock cycles. 2. P7P3, P6P2, P5P1 & P4P0 (Toggling) will enter the performance enhance mode.
P/N: PM1466
REV. 0.05, MAR. 05, 2009
50
MX25L12855E
Figure 23. 4 x I/O Read Enhance Performance Mode Sequence (Command EB)
CS# 0 SCLK
8 Bit Instruction 6 Address cycles
4 dummy cycles
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
n
Performance enhance indicator (Note)
Data Output
SI/SIO0
EB(hex)
address bit20, bit16..bit0 address bit21, bit17..bit1
P4 P0
data bit4, bit0, bit4....
SO/SIO1
High Impedance
P5 P1
data bit5 bit1, bit5....
WP#/SIO2
High Impedance
address bit22, bit18..bit2
P6 P2
data bit6 bit2, bit6....
NC/SIO3
High Impedance
address bit23, bit19..bit3
P7 P3
data bit7 bit3, bit7....
CS# n+1 SCLK
6 Address cycles
4 dummy cycles
...........
n+7 ...... n+9
........... n+13
...........
Performance enhance indicator (Note)
Data Output
SI/SIO0
address bit20, bit16..bit0 address bit21, bit17..bit1
P4 P0
data bit4, bit0, bit4....
SO/SIO1
P5 P1
data bit5 bit1, bit5....
WP#/SIO2
address bit22, bit18..bit2
P6 P2
data bit6 bit2, bit6....
NC/SIO3
address bit23, bit19..bit3
P7 P3
data bit7 bit3, bit7....
Note: Performance enhance mode, if P7=P3 & P6=P2 & P5=P1 & P4=P0 (Toggling), ex: A5, 5A, 0F Reset the performance enhance mode, if P7=P3 or P6=P2 or P5=P1 or P4=P0, ex: AA, 00, FF
P/N: PM1466
REV. 0.05, MAR. 05, 2009
51
MX25L12855E
Figure 24. Fast Quad I/O DT Read (4DTRD) Sequence (Command ED)
CS# SCLK
0 7 8 10 18 7 Dummy cycles 19 20 21 22 23 24 25
...
...
......
1 cycle
......
8-Bit Instruction
3 Address cycles
Performance enhance indicator (Note 1,2)
Data output
SI/SIO0 SO/SIO1 WP#/SIO2 NC/SIO3
ED (hex)
A20 A16 A21 A17 A22 A18 A23 A19
A4 A0 P4 P0 A5 A1 P5 P1 A6 A2 P6 P2 A7 A3 P7 P3
D4 D0 D4 D0 D4 D0 D4 D0 D4 D0 D4 D0 D4 D0 D4 D5 D1 D5 D1 D5 D1 D5 D1 D5 D1 D5 D1 D5 D1 D5 D6 D2 D6 D2 D6 D2 D6 D2 D6 D2 D6 D2 D6 D2 D6 D7 D3 D7 D3 D7 D3 D7 D3 D7 D3 D7 D3 D7 D3 D7
...... ...... ...... ......
Note: 1. Hi-impedance is inhibited for this clock cycle. 2. P7P3, P6P2, P5P1 & P4P0 (Toggling) will enter the performance enhance mode.
P/N: PM1466
REV. 0.05, MAR. 05, 2009
52
MX25L12855E
Figure 25. Fast Quad I/O DT Read (4DTRD) Enhance Performance Sequence (Command ED)
CS# SCLK
0 7 8 10 18 7 Dummy cycles 19 20 21 22 23 24 25
...
...
......
Performance enhance indicator (Note)
......
8-Bit Instruction
3 Address cycles
1 cycle
Data output
SI/SIO0 SO/SIO1 WP#/SIO2 NC/SIO3
ED (hex)
A20 A16 * * * * A4 A0 P4 P0 * * * * * * * * A21 A17 * * * * A5 A1 P5 P1 * * * * * * * * A22 A18 * * * * A6 A2 P6 P2 * * * * * * * * A23 A19 * * * * A7 A3 P7 P3 * * * * * * * *
D4 D0 D4 D0 D4 D0 D4 D0 D4 D0 D4 D0 D4 D0 D4 * * * D5 D1 D5 D1 D5 D1 D5 D1 D5 D1 D5 D1 D5 D1 D5 * * * D6 D2 D6 D2 D6 D2 D6 D2 D6 D2 D6 D2 D6 D2 D6 * * * D7 D3 D7 D3 D7 D3 D7 D3 D7 D3 D7 D3 D7 D3 D7 * * *
CS# SCLK
n+1
...
......
Performance enhance indicator (Note)
......
7 Dummy cycles Data output
3 Address cycles
1 cycle
SI/SIO0 SO/SIO1 WP#/SIO2 NC/SIO3
A20 A16 * * * * A4 A0 P4 P0 * * * * * * * * A21 A17 * * * * A5 A1 P5 P1 * * * * * * * * A22 A18 * * * * A6 A2 P6 P2 * * * * * * * * A23 A19 * * * * A7 A3 P7 P3 * * * * * * * *
D4 D0 D4 D0 D4 D0 D4 D0 D4 D0 D4 D0 D4 D0 D4 * * * D5 D1 D5 D1 D5 D1 D5 D1 D5 D1 D5 D1 D5 D1 D5 * * * D6 D2 D6 D2 D6 D2 D6 D2 D6 D2 D6 D2 D6 D2 D6 * * * D7 D3 D7 D3 D7 D3 D7 D3 D7 D3 D7 D3 D7 D3 D7 * * *
Note: Performance enhance, if P7=P3 & P6=P2 & P5=P1 & P4=P0 (Toggling)
P/N: PM1466
REV. 0.05, MAR. 05, 2009
53
MX25L12855E
Figure 26. Page Program (PP) Sequence (Command 02)
CS# 0 SCLK Command 24-Bit Address Data Byte 1 1 2 3 4 5 6 7 8 9 10 28 29 30 31 32 33 34 35 36 37 38 39
SI
02
23 22 21 MSB
3
2
1
0
7
6
5
4
3
2
1
0
MSB
CS# 2072 2073 2074 2075 2076 2077 2 4 5 6 7 2078 1 0 1 2 3 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 SCLK Data Byte 2 Data Byte 3 Data Byte 256 2079 0 4 5 6 7 0 1 2 3
REV. 0.05, MAR. 05, 2009
SI
7
6
5
4
3
2
1
0
7 MSB
6
5
4
3
2
1
0
7
6
5
4
3
MSB
MSB
Figure 27. 4 x I/O Page Program (4PP) Sequence (Command 38)
CS# 0 SCLK Command 6 Address cycles Data Data Data Data Byte 1 Byte 2 Byte 3 Byte 4 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
SI/SIO0 SO/SIO1 WP#/SIO2 NC/SIO3
38
20 16 12 8 4 21 17 13 9 5
22 18 14 10 6 23 19 15 11 7
P/N: PM1466
54
MX25L12855E
Figure 28. Continously Program (CP) Mode Sequence with Hardware Detection (Command AD)
CS#
01 6789 30 31 31 32 47 48 01
6 78
20 21 22 23 24
0
7
0
78
SCLK Command SI
AD (hex) 24-bit address data in Byte 0, Byte1 Valid Command (1) data in Byte n-1, Byte n
04 (hex)
05 (hex)
S0
high impedance
status (2)
Note: (1) During CP mode, the valid commands are CP command (AD hex), WRDI command (04 hex), RDSR command (05 hex), and RDSCUR command (2B hex). (2) Once an internal programming operation begins, CS# goes low will drive the status on the SO pin and CS# goes high will return the SO pin to tri-state. (3) To end the CP mode, either reaching the highest unprotected address or sending Write Disable (WRDI) command (04 hex) may achieve it and then it is recommended to send RDSR command (05 hex) to verify if CP mode is ended. Figure 29. Sector Erase (SE) Sequence (Command 20)
CS# 0 SCLK Command 24 Bit Address 1 2 3 4 5 6 7 8 9 29 30 31
SI
20
23 22 MSB
2
1
0
Note: SE command is 20(hex). Figure 30. Block Erase (BE) Sequence (Command D8)
CS# 0 SCLK Command 24 Bit Address 1 2 3 4 5 6 7 8 9 29 30 31
SI
D8
23 22 MSB
2
1
0
Note: BE command is D8(hex).
P/N: PM1466 REV. 0.05, MAR. 05, 2009
55
MX25L12855E
Figure 31. Chip Erase (CE) Sequence (Command 60 or C7)
CS# 0 SCLK Command SI 60 or C7 1 2 3 4 5 6 7
Note: CE command is 60(hex) or C7(hex).
Figure 32. Deep Power-down (DP) Sequence (Command B9)
CS# 0 SCLK Command SI B9 1 2 3 4 5 6 7 tDP
Stand-by Mode
Deep Power-down Mode
Figure 33. Release from Deep Power-down and Read Electronic Signature (RES) Sequence (Command AB)
CS# 0 SCLK Command 3 Dummy Bytes tRES2 1 2 3 4 5 6 7 8 9 10 28 29 30 31 32 33 34 35 36 37 38
SI
AB High-Z
23 22 21 MSB
3
2
1
0 Electronic Signature Out 7 MSB Deep Power-down Mode Stand-by Mode 6 5 4 3 2 1 0
SO
P/N: PM1466
REV. 0.05, MAR. 05, 2009
56
MX25L12855E
Figure 34. Release from Deep Power-down (RDP) Sequence (Command AB)
CS# 0 SCLK Command SI AB High-Z 1 2 3 4 5 6 7 tRES1
SO
Deep Power-down Mode
Stand-by Mode
Figure 35. Read Electronic Manufacturer & Device ID (REMS) Sequence (Command 90 or EF or DF or CF)
CS# 0 SCLK Command 2 Dummy Bytes 1 2 3 4 5 6 7 8 9 10
SI
90 High-Z
15 14 13
3
2
1
0
SO
CS# 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 SCLK ADD (1)
SI
7
6
5
4
3
2
1
0 Manufacturer ID Device ID 0 7 MSB 6 5 4 3 2 1 0 7 MSB
SO
X
7 MSB
6
5
4
3
2
1
Notes: (1) ADD=00h will output the Manufacturer ID first and ADD=01h will output Device ID first (2) Instruction is either 90(hex) or EF(hex) or DF(hex) or CF(hex).
P/N: PM1466 REV. 0.05, MAR. 05, 2009
57
MX25L12855E
Figure 36. READ ARRAY SEQUENCE (Parallel)
CS# SCLK SI PO7,PO6, ...PO0 CS# SCLK SI PO7,PO6, ...PO0 CS# SCLK SI PO7,PO6, ...PO0
............. Byte N
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Bit7
Bit6
Bit5
Bit4
Hi-Z 1st byte (03h) 2nd byte (AD1)
Bit1
Bit0
Byte 1 Byte 2 .............
4th byte (AD3)
Hi-Z
Notes : 1. 1st Byte='03h' 2. 2nd Byte=Address 1(AD1), AD23=bit7, AD22=bit6, AD21=bit5, AD20=bit4,....AD16=bit0. 3. 3rd Byte=Address 2(AD2), AD15=bit7, AD14=bit6, AD13=bit5, AD12=bit4,....AD8=bit0. 4. 4th Byte=Address 3(AD3), AD7=bit7, AD6=bit6, ....AD0=bit0. 5. From Byte 5, PO7-0 Would Output Array Data. 6. Under parallel mode, the fastest access clock freq. will be changed to 6MHz(SCLK pin clock freq.). 7. To read array in parallel mode requires a parallel mode command (55h) before the read command. To exit parallel mode, it requires a (45h) command or power-off/on sequence.
P/N: PM1466
REV. 0.05, MAR. 05, 2009
58
MX25L12855E
Figure 37. AUTO PAGE PROGRAM TIMING SEQUENCE (Parallel)
CS# SCLK SI PO7,PO6, ...PO0 CS# SCLK SI PO7,PO6, ...PO0 CS# SCLK SI PO7,PO6, ...PO0
............. Byte N
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Bit7
Bit6
Bit5
Bit4
Hi-Z 1st byte (02h) 2nd byte (AD1)
Bit1
Bit0
Byte 1 Byte 2 .............
4th byte (AD3)
Hi-Z
Notes : 1. 1st Byte='02h' 2. 2nd Byte=Address 1(AD1), AD23=bit7, AD22=bit6, AD21=bit5, AD20=bit4,....AD16=bit0. 3. 3rd Byte=Address 2(AD2), AD15=bit7, AD14=bit6, AD13=bit5, AD12=bit4,....AD8=bit0. 4. 4th Byte=Address 3(AD3), AD7=bit7, AD6=bit6, ....AD0=bit0. 5. 5th byte: 1st write data byte. 6. Under parallel mode, the fastest access clock freq. will be changed to 6MHz(SCLK pin clock freq.). 7. To program in parallel mode requires a parallel mode command (55h) before the program command. To exit parallel mode, it requires a (45h) command or power-off/on sequence.
P/N: PM1466
REV. 0.05, MAR. 05, 2009
59
MX25L12855E
Figure 38. Release from Deep Power-down and Read Electronic Signature (RES) Sequence (Parallel)
CS# 0 SCLK Instruction 3 Dummy Bytes tRES2 1 2 3 4 5 6 7 8 9 10 28 29 30 31 32 33 34 35 36 37 38
SI
23 22 21 High Impedance
3
2
1
0 Electronic Signature Out
PO7~0 Byte Output Deep Power-down Mode Stand-by Mode
Notes : 1. Under parallel mode, the fastest access clock freg. will be changed to 6MHz(SCLK pin clock freg.) To release from Deep Power-down mode and read ID in parallel mode, which requires a parallel mode command (55h) before the read status register command. To exit parallel mode, it requires a (45h) command or power-off/on sequence.
P/N: PM1466
REV. 0.05, MAR. 05, 2009
60
MX25L12855E
Figure 39. Read Electronic Manufacturer & Device ID (REMS) Sequence (Parallel)
CS# 0 SCLK Command 2 Dummy Bytes 1 2 3 4 5 6 7 8 9 10
SI
90 High-Z
15 14 13
3
2
1
0
PO7~0
CS# 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 SCLK ADD (1)
SI
7
6
5
4
3
2
1
0 Manufacturer ID
PO7~0 Device ID
Notes : 1. ADD=00h will output the Manufacturer ID first and ADD=01h will output Device ID first. 2. Under parallel mode, the fastest access clock freg. will be changed to 6MHz(SCLK pin clock freg.) To read ID in parallel mode, which requires a parallel mode command (55h) before the read ID command. To exit Parallel mode, it requires a (45h) command or power-off/on sequence.
P/N: PM1466
REV. 0.05, MAR. 05, 2009
61
MX25L12855E
Figure 40. Write Protection Selection (WPSEL) Sequence (Command 68)
CS# 0 SCLK Command SI 68 1 2 3 4 5 6 7
Figure 41. Single Block Lock/Unlock Protection (SBLK/SBULK) Sequence (Command 36/39)
CS# 0 SCLK Command 24 Bit Address 1 2 3 4 5 6 7 8 9 29 30 31
SI
36/39
23 22 MSB
2
1
0
Figure 42. Read Block Protection Lock Status (RDBLOCK) Sequence (Command 3C)
CS# 0 SCLK Command 3 Address Bytes 1 2 3 4 5 6 7 8 9 10 28 29 30 31 32 33 34 35 36 37 38
SI High-Z
3F
23 22 21 MSB
3
2
1
0 Block Protection Lock status out 7 MSB 6 5 4 3 2 1 0
SO
P/N: PM1466
REV. 0.05, MAR. 05, 2009
62
MX25L12855E
Figure 43. Gang Block Lock/Unlock (GBLK/GBULK) Sequence (Command 7E/98)
CS# 0 SCLK Command SI 7E/98 1 2 3 4 5 6 7
Figure 44. Power-up Timing
VCC VCC(max) Chip Selection is Not Allowed VCC(min) tVSL Device is fully accessible
time
Note: VCC (max.) is 3.6V and VCC (min.) is 2.7V.
Table 9. Power-Up Timing Symbol tVSL(1) Parameter VCC(min) to CS# low Min. 300 Max. Unit us
Note: 1. The parameter is characterized only.
INITIAL DELIVERY STATE The device is delivered with the memory array erased: all bits are set to 1 (each byte contains FFh). The Status Register contains 00h (all Status Register bits are 0).
P/N: PM1466
REV. 0.05, MAR. 05, 2009
63
MX25L12855E
RECOMMENDED OPERATING CONDITIONS
At Device Power-Up AC timing illustrated in Figure A is recommended for the supply voltages and the control signals at device power-up. If the timing in the figure is ignored, the device may not operate correctly.
VCC(min)
VCC
GND
tVR
tSHSL
CS#
tCHSL tSLCH tCHSH tSHCH
SCLK
tDVCH tCHDX tCLCH LSB IN tCHCL
SI
MSB IN
SO
High Impedance
Figure A. AC Timing at Device Power-Up
Symbol tVR
Parameter VCC Rise Time
Notes 1
Min. 20
Max. 500000
Unit us/V
Notes : 1. Sampled, not 100% tested. 2. For AC spec tCHSL, tSLCH, tDVCH, tCHDX, tSHSL, tCHSH, tSHCH, tCHCL, tCLCH in the figure, please refer to "AC CHARACTERISTICS" table.
P/N: PM1466
REV. 0.05, MAR. 05, 2009
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MX25L12855E
ERASE AND PROGRAMMING PERFORMANCE
PARAMETER Write Status Register Cycle Time Sector Erase Time (4KB) Block Erase Time (64KB) Block Erase Time (32KB) Chip Erase Time (128Mb) Byte Program Time (via page program command) Page Program Time Erase/Program Cycle Min. TYP. (1) 40 90 0.7 0.5 80 9 1.4 100,000 Max. (2) 100 300 2 2 512 300 5 UNIT ms ms s s s us ms cycles
Note: 1. Typical program and erase time assumes the following conditions: 25C, 3.3V, and checker board pattern. 2. Under worst conditions of 85C and 2.7V. 3. System-level overhead is the time required to execute the first-bus-cycle sequence for the programming command. 4. The maximum chip programming time is evaluated under the worst conditions of 0C, VCC=3.0V, and 100K cycle with 90% confidence level.
LATCH-UP CHARACTERISTICS
Input Voltage with respect to GND on all power pins, SI, CS# Input Voltage with respect to GND on SO Current Includes all pins except VCC. Test conditions: VCC = 3.0V, one pin at a time. MIN. -1.0V -1.0V -100mA MAX. 2 VCCmax VCC + 1.0V +100mA
P/N: PM1466
REV. 0.05, MAR. 05, 2009
65
MX25L12855E
ORDERING INFORMATION
Please contact Macronix sales for specific information regarding 16-pin SOP (300mil) and 24-ball TFBGA (10x13mm) ordering information.
PART NAME DESCRIPTION
Please contact Macronix sales for specific information regarding 16-pin SOP (300mil) and 24-ball TFBGA (10x13mm) part name description.
P/N: PM1466
REV. 0.05, MAR. 05, 2009
66
MX25L12855E
PACKAGE INFORMATION
P/N: PM1466
REV. 0.05, MAR. 05, 2009
67
MX25L12855E
P/N: PM1466
REV. 0.05, MAR. 05, 2009
68
MX25L12855E
REVISION HISTORY
Revision No. 0.01 0.02 0.03 0.04 Description 1. Modified tSLCH, tSHCH (VIO=1.65~2.2V) from 10ns to 20ns 1. Modified the performance enhance mode reset function description 1. Modified statement 2. Created additional instructions description 1. Corrected wording error 2. Removed MX25L6455E 3. Removed VIO function 4. Modified Status Register QE definition 5. Added Block Erase Time (32KB) 6. Added Note for 4xI/O Read Mode Sequence, Fast Quad I/O DT Read sequence and 4xI/O Read Enhance Mode Sequence 7. Added 24-ball TFBGA 8. Renamed Double data rate as Double transfer rate 9. Electrical Specifications: notice/overshoot waveform figure 10. Table 7. DC Characteristics 11. Table 8. AC Characteristics/notes 1. Added WRLCR command completion under "WEL bit is reset by following situation" 2. Modified ICC2 & ICC4 from 20mA to 25mA 3. Modified tCLQV, tCLQV2 and tCLQX 4. Added tPL, tWRLR, tWPS & tWSR 5. Changed tVSL spec from 200us (min.) to 300us (min.) 6. Modified Figure 4. INPUT TEST WAVEFORMS AND MEASUREMENT LEVEL 7. Revised RDSLOCK into RDBLOCK and added BE32K and 4PP 8. Added CFh 9. Changed title from "Advanced Information" to "Preliminary" Page P46 P24,58 All P34,41~43 All All All P17 P65 P51,52 P6,8,66,68 All P38 P40 P41,42 P10,16 P5,40 P41 P42 P63 P39 P13,15,16 P24,25 P27 P5 Date JUN/16/2008 JUN/27/2008 JUL/29/2008 JAN/19/2009
0.05
MAR/05/2009
P/N: PM1466
REV. 0.05, MAR. 05, 2009
69
MX25L12855E
Macronix's products are not designed, manufactured, or intended for use for any high risk applications in which the failure of a single component could cause death, personal injury, severe physical damage, or other substantial harm to persons or property, such as life-support systems, high temperature automotive, medical, aircraft and military application. Macronix and its suppliers will not be liable to you and/or any third party for any claims, injuries or damages that may be incurred due to use of Macronix's products in the prohibited applications. Copyright(c) Macronix International Co. Ltd. 2008~2009. All Rights Reserved. Macronix, MXIC, MXIC Logo, MX Logo, are trademarks or registered trademarks of Macronix International Co., Ltd.. The names and brands of other companies are for identification purposes only and may be claimed as the property of the respective companies.
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