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rev. 1.4, nov. 06, 2006 1 p/n: pm1231 mx25l4005a 4m-bit [x 1] cmos serial flash features general ? serial peripheral interface (spi) compatible -- mode 0 and mode 3 4,194,304 x 1 bit structure 128 equal sectors with 4k byte each - any sector can be erased individually 8 equal blocks with 64k byte each - any block can be erased individually single 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 low vcc write inhibit is from 1.5v to 2.5v performance high performance - fast access time: 85mhz serial clock (15pf + 1ttl load) and 66mhz serial clock (30pf + 1ttl load) - fast program time: 1.4ms(typ.) and 5ms(max.)/page (256-byte per page) - fast erase time: 60ms(typ.) and 120ms(max.)/sector (4k-byte per sector) ; 1s(typ.) and 2s(max.)/block (64k-byte per block) low power consumption - low active read current: 12ma(max.) at 85mhz, 8ma(max.) at 66mhz and 4ma(max.) at 33mhz - low active programming current: 15ma (max.) - low active erase current: 15ma (max.) - low standby current: 10ua (max.) - deep power-down mode 1ua (typical) minimum 100,000 erase/program cycles software features input data format - 1-byte command code block lock protection - the bp0~bp2 status bit defines the size of the area to be software protected against program and erase instructions. auto erase and auto program algorithm - 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 widths (any page to be programed should have page in the erased state first) ? status register feature electronic identification - jedec 2-byte device id - res command, 1-byte device id hardware features sclk input - serial clock input si input - serial data input so output - serial data output wp# pin - hardware write protection
2 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a general description the mx25l4005a is a cmos 4,194,304 bit serial flash memory, which is configured as 524,288 x 8 internally. the mx25l4005a feature 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). spi access to the device is enabled by cs# input. the mx25l4005a provide sequential read operation on whole chip. after program/erase command is issued, auto program/ erase algorithms which program/ erase and verify the specified page or byte /sector/block locations will be executed. program command is executed on page (256 bytes) basis, and erase command is executes on chip or sector(4k-bytes) or block(64k-bytes). 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. when the device is not in operation and cs# is high, it is put in standby mode and draws less than 10ua dc current. the mx25l4005a utilize mxic's proprietary memory cell, which reliably stores memory contents even after 100,000 program and erase cycles. pin configurations symbol description cs# chip select si serial data input so serial data output sclk clock input hold# hold, to pause the de vice without deselecting the device wp# write protection vcc + 3.3v power supply gnd ground pin description 8-pin sop (150/200mil) 8-land son (6x5mm) 1 2 3 4 cs# so wp# gnd 8 7 6 5 vcc hold# sclk si 1 2 3 4 cs# so wp# gnd vcc hold# sclk si 8 7 6 5 8-pin pdip (300mil) hold# pin - pause the chip without diselecting the chip package - 8-pin sop (150mil) - 8-pin sop (200mil) - 8-pin pdip (300mil) - 8-land son (6x5mm) - all pb-free devices are rohs compliant 1 2 3 4 cs# so wp# gnd 8 7 6 5 vcc hold# sclk si
3 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a block diagram address generator memory array page buffer y-decoder x-decoder data register sram buffer si sclk clock generator state machine mode logic sense amplifier hv generator output buffer so cs#
4 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a data protection the mx25l4005a are 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 read 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. power-on reset and tpuw: to avoid sudden power switch by system power supply transition, the power-on reset and tpuw (internal timer) may protect the flash. 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) command completion - sector erase (se) command completion - block erase (be) command completion - chip erase (ce) command completion software protection mode (spm): by using bp0-bp2 bits to set the part of flash protected from data change. hardware protection mode (hpm): by using wp# going low to protect the bp0-bp2 bits and srwd bit from data change. 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).
5 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a table 1. protected area sizes status bit protect level 4mb bp2 bp1 bp0 0 0 0 0 (none) none 0 0 1 1 (1 block) block 7 0 1 0 2 (2 blocks) block 6-7 0 1 1 3 (4 blocks) block 4-7 1 0 0 4 (8 blocks) all 1 0 1 5 (all) all 1 1 0 6 (all) all 1 1 1 7 (all) all
6 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a hold feature hold# pin signal goes low to hold any serial communications with the device. the hold feature will not stop the operation of write status register, programming, or erasing in progress. the operation of hold requires chip select(cs#) keeping low and starts on falling edge of hold# pin signal while serial clock (sclk) signal is being low (if serial clock signal is not being low, hold operation will not start until serial clock signal being low). the hold condition ends on the rising edge of hold# pin signal while serial clock(sclk) signal is being low( if serial clock signal is not being low, hold operation will not end until serial clock being low), see figure 1. figure 1. hold condition operation hold# cs# sclk hold condition (standard) hold condition (non-standard) the serial data output (so) is high impedance, both serial data input (si) and serial clock (sclk) are don't care during the hold operation. if chip select (cs#) drives high during hold operation, it will reset the internal logic of the device. to re-start communication with chip, the hold# must be at high and cs# must be at low.
7 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a table 2. command definition command wren wrdi rdid rdsr wrsr read fast read (byte) (write (write (read ident- (read status (write status (read data) (fast read enable) disable) ification) register) register) data) 1st 06 hex 04 hex 9f hex 05 hex 01 hex 03 hex 0b hex 2nd ad1 ad1 3rd ad2 ad2 4th ad3 ad3 5th x action sets the reset the output the to read out to write new n bytes (wel) (wel) manufacturer the status values to the read out write write id and 2-byte register status register until enable enable device id cs# goes latch bit latch bit high command se be ce pp dp rdp res rems (read (byte) (sector (block (chip (page (deep (release (read electronic erase) erase) erase) program) power from deep electronic manufacturer down) power-down) id) & device id) 1st 20 hex 52 or 60 or 02 hex b9 hex ab hex ab hex 90 hex d8 hex c7 hex 2nd ad1 ad1 ad1 x x 3rd ad2 ad2 ad2 x x 4th ad3 ad3 ad3 x add(1) 5th action output the manufacturer id and device id (1) add=00h will output the manufacturer's id first and add=01h will output device id first. (2) it is not recommended to adopt any other code which is not in the above command definition table.
8 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a table 3. memory organization block sector 127 07f000h 07ffffh ?? .. ?? . ?? .. 112 070000h 070fffh 111 06f000h 06ffffh ?? .. ?? . ?? .. 96 060000h 060fffh 95 05f000h 05ffffh ?? .. ?? . ?? .. 80 050000h 050fffh 79 04f000h 04ffffh ?? .. ?? . ?? .. 64 040000h 040fffh 63 03f000h 03ffffh ?? .. ?? . ?? .. 48 030000h 030fffh 47 02f000h 02ffffh ?? .. ?? . ?? .. 32 020000h 020fffh 31 01f000h 01ffffh ?? .. ?? . ?? .. 16 010000h 010fffh 15 00f000h 00ffffh ?? .. ?? . ?? .. 3 003000h 003fffh 2 002000h 002fffh 001000h 001fffh 000000h 000fffh 1 0 address range 7 6 5 4 3 2 1 0
9 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a 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. 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 spi mode 0 and mode 3 is shown as figure 2. figure 2. spi modes supported 5. for the following instructions: rdid, rdsr, read, fast_read, res and rems 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, wrsr, se, be, ce, pp, rdp and dp 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. note: cpol indicates clock polarity of spi 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 spi mode is supported. sclk msb cpha shift in shift out si 0 1 cpol 0 (spi mode 0) (spi mode 3) 1 so sclk msb
10 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a command description (1) write enable (wren) the write enable (wren) instruction is for setting write enable latch (wel) bit. for those instructions like pp, se, be, ce, and wrsr, 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 - page program (pp) instruction completion - sector erase (se) instruction completion - block erase (be) instruction completion - chip erase (ce) instruction 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 20(hex) as the first-byte device id, and the individual device id of second-byte id is as followings: 13(hex) for mx25l4005a. 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) 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.
11 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a (4) read status register (rdsr) the rdsr instruction is for reading status register bits. 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. 14) 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. bp2, bp1, bp0 bits. the block protect (bp2, bp1, bp0) bits, non-volatile bits, indicate the protected area(as defined in table 1) of the device to against the program/erase instruction without hardware protection mode being set. to write the block protect (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) srwd bit. the status register write disable (srwd) bit, non-volatile bit, is operated together with write protection (wp#) pin for providing hardware protection mode. the hardware protection mode requires srwd sets to 1 and wp# 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 (bp2, bp1, bp0) are read only. bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 srwd bp2 bp1 bp0 wel wip status 0 0 the level of the level of the level of (write enable (write in progress register write protected protected protected latch) bit) protect block block block 1= status (note 1) (note 1) (note 1) 1=write enable 1=write operation register write 0=not write 0=not in write disable enable operation note: 1. see the table "protected area sizes". 2. the endurance cycles of protect bits are 100,000 cycles; however, the tw time out spec of protect bits is relaxed as tw = n x 15ms (n is a multiple of 10,000 cycles, ex. n = 2 for 20,000 cycles) after 10,000 cycles on those bits.
12 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a (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 (bp2, bp1, bp0) bits to define the protected area of memory (as shown in table 1). the wrsr also can set or reset the status register write disable (srwd) bit in accordance with write protection (wp#) pin signal. 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 15) the wrsr instruction has no effect on b6, b5, b1, b0 of the status register. 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. table 4. protection modes note: 1. as defined by the values in the block protect (bp2, bp1, bp0) bits of the status register, as shown in table 1. 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# is low or high, the wren instruction may set the wel bit and can change the values of srwd, bp2, bp1, bp0. the protected area, which is defined by bp2, bp1, bp0, is at software protected mode (spm). - when srwd bit=1 and wp# is high, the wren instruction may set the wel bit can change the values of srwd, bp2, bp1, bp0. the protected area, which is defined by bp2, bp1, bp0, is at software protected mode (spm). mode status register condition software protection mode(spm) status register can be written in (wel bit is set to "1") and the srwd, bp0-bp2 bits can be changed wp# and srwd bit status memory wp#=1 and srwd bit=0, or wp#=0 and srwd bit=0, or wp#=1 and srwd=1 the protected area cannot be program or erase. the protected area cannot be program or erase. wp#=0, srwd bit=1 the srwd, bp0-bp2 of status register bits cannot be changed hardware protection mode (hpm)
13 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a note: if srwd bit=1 but wp# is low, it is impossible to write the status register even if the wel bit has previously been set. it is rejected to write the status register and not be executed. hardware protected mode (hpm): - when srwd bit=1, and then wp# is low (or wp# 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 bp2, bp1, bp0 and hardware protected mode by the wp# to against data modification. note: to exit the hardware protected mode requires wp# driving high once the hardware protected mode is entered. if the wp# pin is permanently connected to high, the hardware protected mode can never be entered; only can use software protected mode via bp2, bp1, bp0. (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 code-> 3-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. 16) (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 low-> sending fast_read instruction code-> 3-byte address on si-> 1-dummy byte address on si->data out on so-> to end fast_read operation can use cs# to high at any time during data out. (see figure. 17) 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) sector erase (se) the sector erase (se) instruction is for erasing the data of the chosen sector to be "1". 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 3) 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 19)
14 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a 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 tse timing, and sets 0 when sector erase cycle is completed, and the write enable latch (wel) bit is reset. if the page is protected by bp2, bp1, bp0 bits, the sector erase (se) instruction will not be executed on the page. (9) block erase (be) the block erase (be) instruction is for erasing the data of the chosen block to be "1". 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 3) 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 20) 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 page is protected by bp2, bp1, bp0 bits, the block erase (be) instruction will not be executed on the page. (10) 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). any address of the sector (see table 3) is a valid address for chip erase (ce) 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 ce instruction is: cs# goes low-> sending ce instruction code-> cs# goes high. (see figure 20) 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 protected by bp2, bp1, bp0 bits, the chip erase (ce) instruction will not be executed. it will be only executed when bp2, bp1, bp0 all set to "0". (11) 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). if the eight least significant address bits (a7-a0) are not all 0, all transmitted data which goes beyond the end of the current page are programmed from the start address if the same page (from the address whose 8 least significant address bits (a7-a0) are all 0). the cs# must keep during the whole page program cycle. 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. 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 request 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 si-> at least 1-byte on data on si-> cs# goes high. (see figure 18)
15 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a (12) 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 22) 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. (res instruction to allow the id been read out). when power-down, 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. (13) 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 stand-by power mode. if the device was not previously in the deep power- down mode, the transition to the stand-by power mode is immediate. if the device was previously in the deep power-down mode, though, the transition to the stand-by power mode is delayed by tres2, and chip select (cs#) must remain high for at least tres2(max), as specified in table 6. once in the stand-by power 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 deisng, 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 cycle; there's no effect on the current program/erase/write cycle in progress. the sequence is shown as figure 23,24. 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. 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 bp2, bp1, bp0 bits, the page program (pp) instruction will not be executed.
16 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a (14) read electronic manufacturer id & device id (rems) the rems instruction is an alternative to the release from power-down/device id instruction that provides both the jedec assigned manufacturer id and the specific device id. the rems instruction is very similar to the release from power-down/device id instruction. the instruction is initiated by driving the cs# pin low and shift the instruction code "90h" 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 25. the device id values are listed in table of id definitions on page 16. if the one-byte address is initially set to 01h, then the device 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 of id definitions: rdid command manufacturer id memory type memory density c2 20 13 res command electronic id 12 rems command manufacturer id device id c2 12
17 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a 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. when vcc is lower than vwi (por threshold voltage value), the internal logic is reset and the flash device has no response to any command. for further protection on the device, after vcc reaching the vwi level, a tpuw time delay is required before the device is fully accessible for commands like write enable(wren), page program (pp), sector erase(se), chip erase(ce) and write status register(wrsr). if the vcc does not reach the vcc minimum level, the correct operation is not guaranteed. the write, erase, and program command should be sent after the below time delay: - tpuw after vcc reached vwi level - tvsl after vcc reached vcc minimum level the device can accept read command after vcc reached vcc minimum and a time delay of tvsl, even time of tpuw has not passed. 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) - at power-down stage, the vcc drops below vwi level, all operations are disable and device has no response to any command. the data corruption might occur during the stage while a write, program, erase cycle is in progress.
18 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a notes: 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 to 4.6v or -0.5v for period up to 20ns. 4. all input and output pins may overshoot to vcc+0.5v while vcc+0.5v is smaller than or equal to 4.6v. rating value ambient operating temperature -40 c to 85 c for industrial grade 0 c to 70 c for commercial grade storage temperature -55 c to 125 c applied input voltage -0.5v to 4.6v applied output voltage -0.5v to 4.6v vcc to ground potential -0.5v to 4.6v absolute maximum ratings electrical specifications capacitance ta = 25 c, f = 1.0 mhz symbol parameter min. typ max. unit conditions cin input capacitance 6 pf vin = 0v cout output capacitance 8 pf vout = 0v figure 3.maximum negative overshoot waveform 0v -0.5v 20ns figure 4. maximum positive overshoot waveform 4.6v 3.6v 20ns
19 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 5. input test waveforms and measurement level figure 6. output loading ac measurement level input timing referance level output timing referance level 0.8vcc 0.7vcc 0.3vcc 0.5vcc 0.2vcc note: input pulse rise and fall time are <5ns device under test diodes=in3064 or equivalent cl 6.2k ohm 2.7k ohm +3.3v cl=30pf including jig capacitance (cl=15pf including jig capacitance for 85mhz)
20 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a symbol parameter notes min. typ max. units test conditions ili input load 1 2 ua vcc = vcc max current vin = vcc or gnd ilo output leakage 1 2 ua vcc = vcc max current vin = vcc or gnd isb1 vcc standby 1 10 ua vin = vcc or gnd current cs# = vcc isb2 deep power-down 10 ua vin = vcc or gnd current cs# = vcc icc1 vcc read 1 12 ma f=85mhz sclk=0.1vcc/0.9vcc, so=open 8 ma f=66mhz sclk=0.1vcc/0.9vcc, so=open 4 ma f=33mhz sclk=0.1vcc/0.9vcc, so=open icc2 vcc program 1 15 ma program in progress current (pp) cs# = vcc icc3 vcc write status 15 ma program status register in progress register (wrsr) cs#=vcc current icc4 vcc sector erase 1 15 ma erase in progress current (se) cs#=vcc icc5 vcc chip erase 1 15 ma erase in progress current (ce) cs#=vcc vil input low voltage -0.5 0.3vcc v vih input high voltage 0.7vcc vcc+0.4 v vol output low voltage 0.4 v iol = 1.6ma voh output high voltage vcc-0.2 v ioh = -100ua table 5. dc characteristics (temperature = -40 c to 85 c for industrial grade, temperature = 0 c to 70 c for commercial grade, vcc = 2.7v ~ 3.6v) notes : 1. typical values at vcc = 3.3v, t = 25 c. these currents are valid for all product versions (package and speeds). 2. typical value is calculated by simulation.
21 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a table 6. ac characteristics (temperature = -40 c to 85 c for industrial grade, temperature = 0 c to 70 c for commercial grade, vcc = 2.7v ~ 3.6v) symbol alt. parameter min. typ. max. unit fsclk fc clock frequency for the following instructions: d.c. 85 mhz fast_read, pp, se, be, ce, dp, res,rdp (condition:15pf) wren, wrdi, rdid, rdsr, wrsr 66 mhz (condition:30pf) frsclk fr clock frequency for read instructions d.c. 33 mhz tch(1) tclh clock high time 7 ns tcl(1) tcll clock low time 7 ns tclch(2) clock rise time (3) (peak to peak) 0.1 v/ns tchcl(2) clock fall time (3) (peak to peak) 0.1 v/ns tslch tcss cs# active setup time (relative to sclk) 5 ns tchsl cs# not active hold time (relative to sclk) 5 ns tdvch tdsu data in setup time 2 ns tchdx tdh data in hold time 5 ns tchsh cs# active hold time (relative to sclk) 5 ns tshch cs# not active setup time (relative to sclk) 5 ns tshsl tcsh cs# deselect time 100 ns tshqz(2) tdis output disable time 6 ns tclqv tv clock low to output valid @33mhz 30pf 8 ns @85mhz 15pf or @66mhz 30pf 6 ns tclqx tho output hold time 0 ns thlch hold# setup time (relative to sclk) 5 ns tchhh hold# hold time (relative to sclk) 5 ns thhch hold setup time (relative to sclk) 5 ns tchhl hold hold time (relative to sclk) 5 ns thhqx(2) tlz hold to output low-z 6 ns thlqz(2) thz hold# to output high-z 6 ns twhsl(4) write protect setup time 20 ns tshwl(4) write protect hold time 100 ns tdp(2) cs# high to deep power-down mode 3 us tres1(2) cs# high to standby mode without electronic signature read 3 us tres2(2) cs# high to standby mode with electronic signature read 1.8 us tw write status register cycle time 5 15 ms tpp page program cycle time 1.4 5 ms tse sector erase cycle time 60 120 ms tbe block erase cycle time 1 2 s tce chip erase cycle time 3.5 7.5 s note: 1. tch + tcl must be greater than or equal to 1/ fc 2. value guaranteed by characterization, not 100% tested in production. 3. expressed as a slew-rate. 4. only applicable as a constraint for a wrsr instruction when srwd is set at 1. 5. test condition is shown as figure 3.
22 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a symbol parameter min. max. unit tvsl(1) vcc(min) to cs# low 10 us tpuw(1) time delay to write instruction 1 10 ms vwi(1) write inhibit voltage 1.5 2.5 v 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). note: 1. these parameters are characterized only. table 7. power-up timing and vwi threshold
23 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 7. serial input timing sclk si cs# msb so tdvch high-z lsb tslch tchdx tchcl tclch tshch tshsl tchsh tchsl figure 8. output timing lsb addr.lsb in tshqz tch tcl tqlqh tqhql tclqx tclqv tclqx tclqv sclk so cs# si
24 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 9. hold timing tchhl thlch thhch tchhh thhqx thlqz sclk so cs# hold# * si is "don't care" during hold operation. figure 10. wp# disable setup and hold timing during wrsr when srwd=1 high-z 01 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 twhsl tshwl sclk si cs# wp# so
25 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 11. write enable (wren) sequence (command 06) figure 12. write disable (wrdi) sequence (command 04) figure 13. read identification (rdid) sequence (command 9f) 2 1 3456789101112131415 command 0 manufacturer identification high-z msb 15 1413 3210 device identification msb 765 3210 16 17 18 28 29 30 31 sclk si cs# so 9f 2 1 34567 high-z 0 06 command sclk si cs# so 2 1 34567 high-z 0 04 command sclk si cs# so
26 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 14. read status register (rdsr) sequence (command 05) figure 15. write status register (wrsr) sequence (command 01) figure 16. read data bytes (read) sequence (command 03) 2 1 3456789101112131415 command 0 7 6543210 status register out high-z msb 7 6543210 status register out msb 7 sclk si cs# so 05 2 1 3456789101112131415 status register in 0 765432 0 1 msb sclk si cs# so 01 high-z command sclk si cs# so 23 2 1 345678910 2829303132333435 2221 3210 36 37 38 76543 1 7 0 data out 1 24-bit address 0 msb msb 2 39 data out 2 03 high-z command
27 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 17. read at higher speed (fast_read) sequence (command 0b) 23 2 1 345678910 28293031 2221 3210 high-z 24 bit address 0 32 33 34 36 37 38 39 40 41 42 43 44 45 46 765432 0 1 data out 1 dummy byte msb 7 6543210 data out 2 msb msb 7 47 765432 0 1 35 sclk si cs# so sclk si cs# so 0b command
28 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 18. page program (pp) sequence (command 02) 42 41 43 44 45 46 47 48 49 50 52 53 54 55 40 23 2 1 345678910 2829303132333435 2221 3210 36 37 38 24-bit address 0 765432 0 1 data byte 1 39 51 765432 0 1 data byte 2 765432 0 1 data byte 3 data byte 256 2079 2078 2077 2076 2075 2074 2073 765432 0 1 2072 msb msb msb msb msb sclk cs# si sclk cs# si 02 command
29 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 19. sector erase (se) sequence (command 20) note: se command is 20(hex). figure 20. block erase (be) sequence (command 52 or d8) note: be command is 52 or d8(hex). 24 bit address 2 1 3456789 293031 0 76 21 0 msb sclk cs# si 20 command 24 bit address 2 1 3456789 293031 0 23 22 2 0 1 msb sclk cs# si 52 or d8 command
30 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 21. chip erase (ce) sequence (command 60 or c7) figure 22. deep power-down (dp) sequence (command b9) figure 23. release from deep power-down and read electronic signature (res) sequence (command ab) note: ce command is 60(hex) or c7(hex). 2 1 34567 0 60 or c7 sclk si cs# command 2 1 34567 0 t dp deep power-down mode stand-by mode sclk cs# si b9 command 23 2 1 345678910 2829303132333435 2221 3210 36 37 38 765432 0 1 high-z electronic signature out 3 dummy bytes 0 msb stand-by mode deep power-down mode msb t res2 sclk cs# si so ab command
31 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 24. release from deep power-down (rdp) sequence (command ab) figure 25. read electronic manufacturer & device id (rems) sequence (command 90) notes: (1) add=00h will output the manufacturer's id first and add=01h will output device id first 15 14 13 3 2 1 0 2 1 345678910 2 dummy bytes 0 32 33 34 36 37 38 39 40 41 42 43 44 45 46 765432 0 1 manufacturer id add (1) msb 7 6543210 device id msb msb 7 47 765432 0 1 35 31 30 29 28 sclk si cs# so sclk si cs# so x 90 high-z command 2 1 34567 0 t res1 stand-by mode deep power-down mode high-z sclk cs# si so ab command
32 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a figure 26. power-up timing v cc v cc (min) v wi reset state of the flash chip selection is not allowed program, erase and write commands are ignored tvsl tpuw time read command is allowed device is fully accessible v cc (max)
33 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a 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. figure a. ac timing at device power-up 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. symbol parameter notes min. max. unit tvr vcc rise time 1 0.5 500000 us/v sclk si cs# vcc msb in so tdvch high impedance lsb in tslch tchdx tchcl tclch tshch tshsl tchsh tchsl tvr vcc(min) gnd
34 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a erase and programming performance parameter min. typ. (1) max. (2) unit write status register cycle time 5 15 ms sector erase time 60 120 ms block erase time 1 2 s chip erase time 3.5 7.5 s page program time 1.4 5 ms erase/program cycle 100,000 cycles note: 1. typical program and erase time assumes the following conditions: 25 c, 3.3v, and checker board pattern. 2. under worst conditions of 70 c and 3.0v. 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. min. max. input voltage with respect to gnd on acc -1.0v 12.5v input voltage with respect to gnd on all power pins, si, cs# -1.0v 2 vccmax input voltage with respect to gnd on so -1.0v vcc + 1.0v current -100ma +100ma includes all pins except vcc. test conditions: vcc = 3.0v, one pin at a time. latch-up characteristics
35 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a ordering information part no. clock operating standby temperature package remark (mhz) current(ma) current(ua) MX25L4005AMC-12 85 12 10 0~70 c 8-sop (150mil) MX25L4005AMC-12g 85 12 10 0~70 c 8-sop pb-free (150mil) mx25l4005am2c-12 85 12 10 0~70 c 8-sop (200mil) mx25l4005am2c-12g 85 12 10 0~70 c 8-sop pb-free (200mil) mx25l4005apc-12g 85 12 10 0~70 c 8-pdip pb-free (300mil) mx25l4005azmc-12g 85 12 10 0~70 c 8-land son pb-free (6x5mm) mx25l4005ami-12 85 12 10 -40~85 c 8-sop (150mil) mx25l4005ami-12g 85 12 10 -40~85 c 8-sop pb-free (150mil) mx25l4005am2i-12 85 12 10 -40~85 c 8-sop (200mil) mx25l4005am2i-12g 85 12 10 -40~85 c 8-sop pb-free (200mil) mx25l4005azmi-12g 85 12 10 -40~85 c 8-land son pb-free (6x5mm)
36 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a part name description mx 25 l 12 zm c g option: g: pb-free blank: normal speed: 12: 85mhz, for spi temperature range: c: commercial (0?c to 70?c) i: industrial (-40?c to 85?c) package: zm: son m: 150mil 8-sop m2: 200mil 8-sop p: 300mil 8-pdip density & mode: 4005a: 4mb type: l: 3v device: 25: serial flash 4005a
37 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a package information
38 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a
39 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a
40 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a
41 p/n: pm1231 rev. 1.4, nov. 06, 2006 mx25l4005a revision history revision no. description page date 1.1 1. modified read current:6ma@85mhz/4ma@66mhz/2ma@33mhz p1,20,35 sep/29/2005 --> 12ma@85mhz/8ma@66mhz/4ma@33mhz 2. modified tse:90ms(typ)/270ms(max)-->60ms(typ)/120ms(max) ; p1,21,34 tbe:3s(max)-->2s(max); tce:4.5s(typ)/10s(max)-->3.5s(typ)/7.5s(max) 3. modified operating current max. from 2ma to 12ma p33 4. added description about pb-free device is rohs compliant p1 5. standby current is reduced from 25ua(max) to 10ua(max) p1,2,20,35 6. deep power-down current from 5ua to 10ua p20 1.2 1. format change all jun/08/2006 2. supplemented the footnote for tw of protect/unprotect bits p11 1.3 1. added 8-pin pdip package option p1,2,35,36,39 sep/06/2006 1.4 1. added statement p42 nov/06/2006
mx25l4005a m acronix i nternational c o., l td . headquarters: tel:+886-3-578-6688 fax:+886-3-563-2888 europe office : tel:+32-2-456-8020 fax:+32-2-456-8021 hong kong office : tel:+86-512-6258-0888 fax:+86-512-6258-6799 japan office : kawasaki office : tel:+81-44-246-9100 fax:+81-44-246-9105 technical support center : tel:+81-44-246-9875 fax:+81-44-246-9951 singapore office : tel:+65-6346-5505 fax:+65-6348-8096 taipei office : tel:+886-2-2509-3300 fax:+886-2-2509-2200 m acronix a merica, i nc. tel:+1-408-262-8887 fax:+1-408-262-8810 http : //www.macronix.com macronix international co., ltd. reserves the right to change product and specifications without notice. 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. 42

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