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features ? 3.3v 10% write, erase and read ? endurance: 10,000 cycles ? fast random access time: 100ns/120ns ? fast pagemode access time: 50ns ? page access depth: 16 bytes/8 words ? sector erase architecture - 32 equal sectors of 64k word each - sector erase time: 200ms typical ? auto erase and auto program algorithms - automatically erases any one of the sectors or the whole chip with erase suspend capability - automatically programs and verifies data at specified addresses ? status register feature for detection of program or erase cycle completion ? low vcc write inhibit is equal to or less than 1.8v ? software data protection ? page program operation - internal address and data latches for 256 bytes/128 words per page - page programming time: 5ms typical ? low power dissipation - 50ma active current - 20ua standby current ? two independently protected sectors ? industry standard surface mount packaging - 44 pin sop (500mil) - 48 tsop(i) general description the mx29l3211 is a 32-mega bit pagemode flash memory organized as either 4m word x 8 or 2m byte x 16. the mx29l3211 includes 32 sectors of 64k words. mxic's flash memories offer the most cost-effective and reliable read/write non-volatile random access memory and fast page mode access. the mx29l3211 is packaged 44-pin sop and 48-pin tsop. it is designed to be reprogrammed and erased in-system or in-standard eprom programmers. the standard mx29l3211 offers access times as fast as 100ns,allowing operation of high-speed microprocessors without wait. to eliminate bus contention, the mx29l3211 has separate chip enable ce, output enable (oe), and write enable (we) controls. mxic's flash memories augment eprom functionality with in-circuit electrical erasure and programming. the mx29l3211 uses a command register to manage this functionality. to allow for simple in-system reprogrammability, the mx29l3211 does not require high input voltages for programming. three-volt-only commands determine the operation of the device. reading data out of the device is similar to reading from an eprom. mxic flash technology reliably stores memory contents even after 10,000 cycles. the mxic's cell is designed to optimize the erase and programming mechanisms. in addition, the combination of advanced tunnel oxide processing and low internal electric fields for erase and programming operations produces reliable cycling. the mx29l3211 uses a 3.3v 10% vcc supply to perform the auto erase and auto program algorithms. the highest degree of latch-up protection is achieved with mxic's proprietary non-epi process. latch-up protection is proved for stresses up to 100 milliamps on address and data pin from -1v to vcc +1v. 1 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 32m-bit [4m x 8/2m x 16] cmos single voltage pagemode flash eeprom advanced information
2 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 pin configurations 44 sop(500mil) pin description symbol pin name a0 - a20 address inputs q0 - q14 data input/output q15/a-1 q15(word mode)/lsb address (byte mode) ce chip enable input oe output enable input we write enable input byte byte/word mode selection vcc power supply gnd ground pin 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 we a18 a17 a7 a6 a5 a4 a3 a2 a1 a0 ce gnd oe q0 q8 q1 q9 q2 q10 q3 q11 a20 a19 a8 a9 a10 a11 a12 a13 a14 a15 a16 byte gnd q15/a-1 q7 q14 q6 q13 q5 q12 q4 vcc mx29l3211 48 tsop (normal type) byte a16 a15 a14 a13 a12 a11 a10 a9 a8 a19 gnd a20 a18 a17 a7 a6 a5 a4 a3 a2 a1 a0 ce 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 gnd gnd q15/a-1 q7 q14 q6 q13 q5 q12 q4 vcc vcc we q11 q3 q10 q2 q9 q1 q8 q0 oe gnd gnd 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 mx29l3211 (normal type)
3 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 block diagram control input logic program/erase high voltage write s tat e machine (wsm) command interface register (cir) mx29l3211 flash array x-decoder address latch and buffer y-pass gate y-decoder array source hv command data decoder command data latch i/o buffer pgm data hv program data latch sense amplifier y-select q0-q15/a-1 q15/a-1 a0-a20 ce we oe byte
4 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 table1.pin descriptions symbol type name and function a0 - a20 input address inputs: for memory addresses. addresses are internally latched during a write cycle. q0 - q7 input/output low-byte data bus: input data and commands during command interface register(cir) write cycles. outputs array,status and identifier data in the appropriate read mode. floated when the chip is de-selected or the outputs are disabled. q8 - q14 input/output high-byte data bus: inputs data during x 16 data-write operations. outputs array, identifier data in the appropriate read mode; not used for status register reads. floated when the chip is de-selected or the outputs are disabled q15/a -1 input/output selects between high-byte data input/output(byte = high) and lsb address(byte = low) ce input chip enable inputs: activate the device's control logic, input buffers, decoders and sense amplifiers. with ce high, the device is deselected and power consumption reduces to standby level upon completion of any current program or erase operations. ce must be low to select the device. oe input output enables: gates the device's data through the output buffers during a read cycle oe is active low. we input write enable: controls writes to the command interface register(cir). we is active low. byte input byte enable: byte low places device in x8 mode. all data is then input or output on q0-7 and q8-14 float. addressq15/a-1 selects between the high and low byte. byte high places the device in x16 mode, and turns off the q15/ a-1 input buffer. address a0, then becomes the lowest order address. vcc device power supply(3.3v 10%) gnd ground
5 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 table2.2 bus operations for byte-wide mode (byte = vil) mode notes ce oe we a0 a1 a9 q0-q7 q8-q14 q15/a-1 read 1 vil vil vih x x x dout highz vil/vih output disable 1 vil vih vih x x x high z high z x standby 1 vih x x x x x high z high z x manufacturer id 2,4 vil vil vih vil vil vid c2h high z vil device id 2,4 vil vil vih vih vil vid f9h high z vil write 1,3 vil vih vil x x x din high z vil/vih table 2.1 bus operations for word-wide mode (byte = vih) mode notes ce oe we a0 a1 a9 q0-q7 q8-q14 q15/a-1 read 1 vil vil vih x x x dout dout dout output disable 1 vil vih vih x x x high z high z highz standby 1 vih x x x x x high z high z highz manufacturer id 2,4 vil vil vih vil vil vid c2h 00h 0b device id 2,4 vil vil vih vih vil vid f9h 00h 0b write 1,3 vil vih vil x x x din din din bus operation flash memory reads, erases and writes in-system via the local cpu . all bus cycles to or from the flash memory conform to standard microprocessor bus cycles. notes : 1. x can be vih or vil for address or control pins. 2. a0 and a1 at vil provide manufacturer id codes. a0 at vih and a1 at vil provide device id codes. a0 at vil, a1 at vih and with appropriate sector addresses provide sector protect code.(refer to table 4) 3. commands for different erase operations, data program operations or sector protect operations can only be successfully completed through proper command sequence. 4. vid = 11.5v- 12.5v.
6 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 write operations commands are written to the command interface register (cir) using standard microprocessor write timings. the cir serves as the interface between the microprocessor and the internal chip operation. the cir can decipher read array, read silicon id, erase and program command. in the event of a read command, the cir simply points the read path at either the array or the silicon id, depending on the specific read command given. for a program or erase cycle, the cir informs the write state machine that a program or erase has been requested. during a program cycle, the write state machine will control the program sequences and the cir will only respond to status reads. during a sector/ chip erase cycle, the cir will respond to status reads and erase suspend. after the write state machine has completed its task, it will allow the cir to respond to its full command set. the cir stays at read status register mode until the microprocessor issues another valid command sequence. device operations are selected by writing commands into the cir. table 3 below defines 32 mbit flash family command. table 3. command definitions command read/ silicon page/byte chip sector erase erase read clear sequence reset id read program erase erase suspend resume status reg. status reg. bus write 4 4 4 6 6 3 3 4 3 cycles req'd first bus addr 5555h 5555h 5555h 5555h 5555h 5555h 5555h 5555h 5555h write cycle data aah aah aah aah aah aah aah aah aah second bus addr 2aaah 2aaah 2aaah 2aaah 2aaah 2aaah 2aaah 2aaah 2aaah write cycle data 55h 55h 55h 55h 55h 55h 55h 55h 55h third bus addr 5555h 5555h 5555h 5555h 5555h 5555h 5555h 5555h 5555h write cycle data f0h 90h a0h 80h 80h b0h d0h 70h 50h fourth bus addr ra 00h/01h pa 5555h 5555h x read/write cycle data rd c2h/f9h pd aah aah srd fifth bus addr 2aaah 2aaah write cycle data 55h 55h sixth bus addr 5555h sa write cycle data 10h 30h
7 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 notes: 1. address bit a15 -- a20 = x = don't care for all address commands except for program address(pa) and sector address(sa). 5555h and 2aaah address command codes stand for hex number starting from a0 to a14. 2. bus operations are defined in table 2. 3. ra = address of the memory location to be read. pa = address of the memory location to be programmed. addresses are latched on the falling edge of the we pulse. sa = address of the sector to be erased. the combination of a16 -- a20 will uniquely select any sector. 4. rd = data read from location ra during read operation. pd = data to be programmed at location pa. data is latched on the rising edge of we. srd = data read from status register. * refer to table 4, figure 12. ** only the top and the bottom sectors have protect- bit feature. sa = (a20,a19,a18,a17,a16) = 00000b or 11111b is valid. table 3. command definitions command sector sector verify sector abort sequence protection unprotect protect bus write 6 6 4 3 cycles req'd first bus addr 5555h 5555h 5555h 5555h write cycle data aah aah aah aah second bus addr 2aaah 2aaah 2aaah 2aaah write cycle data 55h 55h 55h 55h third bus addr 5555h 5555h 5555h 5555h write cycle data 60h 60h 90h e0h fourth bus addr 5555h 5555h * read/write cycle data aah aah c2h* fifth bus addr 2aaah 2aaah write cycle data 55h 55h sixth bus addr sa** sa** write cycle data 20h 40h
8 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 table 4. mx29l3211 silion id codes and verify sector protect code type a 20 a 19 a 18 a 17 a 16 a 1 a 0 code(hex) q 7 q 6 q 5 q 4 q 3 q 2 q 1 q 0 manufacturer code x x x x x vil vil c2h* 1 1 0 0 0 0 1 0 mx29l3211 device code x x x x x vil vih f9h* 1 1 1 1 1 0 0 1 verify sector protect sector address*** vih vil c2h** 1 1 0 0 0 0 1 0 * mx29l3211 manufacturer code = c2h, device code = f9h when byte = vil mx29l3211 manufacturer code = 00c2h, device code = 00f9h when byte = vih ** outputs c2h at protected sector address, 00h at unprotected scetor address. ***only the top and the bottom sectors have protect-bit feature. sector address = (a20, a19, a18,a17,a16) = 00000b or 11111b device operation silicon id read the silicon id read mode allows the reading out of a binary code from the device and will identify its manufacturer and type. this mode is intended for use by programming equipment for the purpose of automatically matching the device to be programmed with its corresponding programming algorithm. this mode is functional over the entire temperature range of the device. to activate this mode, the programming equipment must force vid (11.5v~12.5v) on address pin a9. two identifier bytes may then be sequenced from the device outputs by toggling address a0 from vil to vih. all addresses are don't cares except a0 and a1. the manufacturer and device codes may also be read via the command register, for instances when the mx29l3211 is erased or programmed in a system without access to high voltage on the a9 pin. the command sequence is illustrated in table 3. during the "silicon id read" mode, manufacturer's code (mxic=c2h) can be read out by setting a0=vil and device identifier (mx29l3211=f9h) can be read out by setting a0=vih. to terminate the operation, it is necessary to write the read/reset command sequence into the cir.
9 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 after three-cycle command sequence is given, a byte(word) load is performed by applying a low pulse on the we or ce input with ce or we low (respectively) and oe high. the address is latched on the falling edge of ce or we, whichever occurs last. the data is latched by the first rising edge of ce or we. maximum of 128 words of data may be loaded into each page by the same procedure as outlined in the page program section below. byte-wide load/word-wide load byte(word) loads are used to enter the 128 words(256 bytes) of a page to be programmed or the software codes for data protection. a byte(word load) is performed by applying a low pulse on the we or ce input with ce or we low (respectively) and oe high. the address is latched on the falling edge of ce or we, whichever occurs last. the data is latched by the first rising edge of ce or we. either word-wide load or byte-wide load is determined(byte = vil or vih is latched) on the falling edge of the we (or ce) during the 3rd command write cycle. program any page to be programmed should have the page in the erased state first, i.e. performing sector erase is suggested before page programming can be performed. the device is programmed on a page basis. if a byte(word) of data within a page is to be changed, data for the entire page can be loaded into the device. any byte(word) that is not loaded during the programming of its page will be still in the erased state (i.e. ffh). once the bytes of a page are loaded into the device, they are simultaneously programmed during the internal programming period. after the first data byte (word) has been loaded into the device, successive byte(word) are entered in the same manner. each new byte(word) to be programmed must have its high to low transition on we (or ce) within 30us of the low to high transition of we (or ce) of the preceding byte(word). a7 to a20 specify the page address, i.e., the device is page-aligned on 128 word(256 byte)boundary. the page address must be valid during each high to low transition of we or ce. a- 1 to a6 specify the byte address within the page, a0 to read/reset command the read or reset operation is initiated by writing the read/reset command sequence into the command register. microprocessor read cycles retrieve array data from the memory. the device remains enabled for reads until the cir contents are altered by a valid command sequence. the device will automatically power-up in the read/reset state. in this case, a command sequence is not required for "read operation". standard microprocessor read cycles will retrieve array data. this default value ensures that no spurious alteration of the memory content occurs during the power transition. refer to the ac read characteristics and waveforms for the specific timing parameters. the mx29l3211 is accessed like an eprom. when ce and oe are low and we is high the data stored at the memory location determined by the address pins is asserted on the outputs. the outputs are put in the high impedance state whenever ce or oe is high. this dual line control gives designers flexibility in preventing bus contention. note that the read/reset command is not valid when program or erase is in progress. page read the mx29l3211 offers "fast page mode read" function. the users can take the access time advantage if keeping ce, oe at low and the same page address (a3~a20 unchanged). please refer to figure 5-2 for detailed timing waveform. the system performance could be enhanced by initiating 1 normal read and 7 fast page reads(for word mode a0~a2) or 15 fast page reads(for byte mode altering a-1~a2). page program to initiate page program mode, a three-cycle command sequence is required. there are two "unlock" write cycles. these are followed by writing the page program command-a0h. any attempt to write to the device without the three-cycle command sequence will not start the internal write state machine(wsm), no data will be written to the device.
10 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 sector erase sector erase is a six-bus cycle operation. there are two "unlock" write cycles. these are followed by writing the set-up command-80h. two more "unlock" write cycles are then followed by the sector erase command-30h. the sector address is latched on the falling edge of we, while the command (data) is latched on the rising edge of we. sector erase does not require the user to program the device prior to erase. the system is not required to provide any controls or timings during these operations. the automatic sector erase begins on the rising edge of the last we pulse in the command sequence and terminates when the status on q7 is "1" at which time the device stays at read status register mode. the device remains enabled for read status register mode until the cir contents are altered by a valid command sequence.(refer to table 3,6 and figure 3,4,7,9) erase suspend this command only has meaning while the the wsm is executing sector or chip erase operation, and therefore will only be responded to during sector or chip erase operation. after this command has been executed, the cir will initiate the wsm to suspend erase operations, and then return to read status register mode. the wsm will set the q6 bit to a "1". once the wsm has reached the suspend state,the wsm will set the q7 bit to a "1", at this time, wsm allows the cir to respond to the read array, read status register, abort and erase resume commands only. in this mode, the cir will not resopnd to any other comands. the wsm will continue to run, idling in the suspend state, regardless of the state of all input control pins. erase resume this command will cause the cir to clear the suspend state and set the q6 to a '0', but only if an erase suspend command was previously issued. erase resume will not have any effect in all other conditions. a20 a19 a18 a17 a16 address range[a20,a0] sa0 0 0 0 0 0 000000h--00ffffh sa1 0 0 0 0 1 010000h--01ffffh sa2 0 0 0 1 0 020000h--02ffffh sa3 0 0 0 1 1 030000h--03ffffh sa4 0 0 1 0 0 040000h--04ffffh ... ... ... ... ... ................................ sa31 1 1 1 1 1 1f0000h--1fffffh table 5. mx29l3211 sector address table (word-wide mode) a6 specify the word address withih the page. the byte (word) may be loaded in any order; sequential loading is not required. if a high to low transition of ce or we is not detected whithin 100us of the last low to high transition, the load period will end and the internal programming period will start. the auto page program terminates when status on q7 is '1' at which time the device stays at read status register mode until the cir contents are altered by a valid command sequence.(refer to table 3,6 and figure 1,7,8) chip erase chip erase is a six-bus cycle operation. there are two "unlock" write cycles. these are followed by writing the "set-up" command-80h. two more "unlock" write cycles are then followed by the chip erase command-10h. chip erase does not require the user to program the device prior to erase. the automatic erase begins on the rising edge of the last we pulse in the command sequence and terminates when the status on q7 is "1" at which time the device stays at read status register mode. the device remains enabled for read status register mode until the cir contents are altered by a valid command sequence.(refer to table 3,6 and figure 2,7,9)
11 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 clear status register the erase fail status bit (q5) and program fail status bit (q4) are set by the write state machine, and can only be reset by the system software. these bits can indicate various failure conditions(see table 6). by allowing the system software to control the resetting of these bits, several operations may be performed (such as cumulatively programming several pages or erasing multiple blocks in squence). the status register may then be read to determine if an error occurred during that programming or erasure series. this adds flexibility to the way the device may be programmed or erased. additionally, once the program(erase) fail bit happens, the program (erase) operation can not be performed further. the program(erase) fail bit must be reset by system software before further page program or sector (chip) erase are attempted. to clear the status register, the clear status register command is written to the cir. then, any other command may be issued to the cir. note again that before a read cycle can be initiated, a read command must be written to the cir to specify whether the read data is to come from the array, status register or silicon id. read status register the mxic's 32 mbit flash family contains a status register which may be read to determine when a program or erase operation is complete, and whether that operation completed successfully. the status register may be read at any time by writing the read status command to the cir. after writing this command, all subsequent read operations output data from the status register until another valid command sequence is written to the cir. a read array command must be written to the cir to return to the read array mode. the status register bits are output on q3 - q7(table 6) whether the device is in the byte-wide (x8) or word-wide (x16) mode for the mx29l3211. in the word-wide mode the upper byte, q(8:15) is set to 00h during a read status command. in the byte-wide mode, q(8:14) are tri-stated and q15/a-1 retains the low order address function. q0-q1 is set to 0h in either x8 or x16 mode. it should be noted that the contents of the status register are latched on the falling edge of oe or ce whichever occurs last in the read cycle. this prevents possible bus errors which might occur if the contents of the status register change while reading the status register. ce or oe must be toggled with each subsequent status read, or the completion of a program or erase operation will not be evident. the status register is the interface between the microprocessor and the write state machine (wsm). when the wsm is active, this register will indicate the status of the wsm, and will also hold the bits indicating whether or not the wsm was successful in performing the desired operation. the wsm sets status bits four through seven and clears bits six and seven, but cannot clear status bits four and five. if erase fail or program fail status bit is detected, the status register is not cleared until the clear status register command is written. the mx29l3211 automatically outputs status register data when read after chip erase, sector erase, page program or read status command write cycle. the default state of the status register after powerup and return from deep power-down mode is (q7, q6, q5, q4) = 1000b. q3 = 0 or 1 depends on sector-protect status, can not be changed by clear status register command or write state machine.
12 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 table 6. mx29l3211 status register status notes q7 q6 q5 q4 q3 in progress program 1,2, 6 0 0 0 0 0/1 erase 1,3, 6 0 0 0 0 0/1 suspend (not complete) 1,4, 6 0 1 0 0 0/1 (complete) 1 1 0 0 0/1 complete program 1,2, 6 1 0 0 0 0/1 erase 1,3, 6 1 0 0 0 0/1 fail program 1,5, 6 1 0 0 1 0/1 erase 1,5, 6 1 0 1 0 0/1 after clearing status register 6 1 0 0 0 0/1 notes: 1. q7 : write state machine status 1 = ready, 0 = busy q6 : erase suspend status 1 = suspend, 0 = no suspend q5 : erase fail status 1 = fail in erase, 0 = successful erase q4 : program fail status 1 = fail in program, 0 = successful program q3 : sector-protect status 1 = sector 0 or/and 15 protected 0 = none of sector protected q2 - 0 = reserved for future enhancements. these bits are reserved for future use ; mask them out when polling the status register. 2. program status is for the status during page programming or sector unprotect mode. 3. erase status is for the status during sector/chip erase or sector protection mode. 4. suspend status is for both sector and chip erase mode . 5. fail status bit(q4 or q5) is provided during page program or sector/chip erase modes respectively. 6. q3 = 0 or1 depends on sector-protect status.
13 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 sector unprotect it is also possible to unprotect the sector , same as the first five write command cycles in activating sector protection mode followed by the unprotect sector command -40h, the automatic unprotect operation begins on the rising edge of the last we pulse in the command sequence and terminates when the status on q7 is '1' at which time the device stays at the read status register mode. (refer to table 3,6 and figure 11,12) the device remains enabled for read status register mode until the cir contents are altered by a valid command sequence. abort mode to activate abort mode, a three-bus cycle operation is required. the e0h command (refer to table 3) only stops page program or sector /chip erase operation currently in progress and puts the device in abort mode. so the program or erase operation will not be completed. since the data in some page/sectors is no longer valid due to an incomplete program or erase operation, the program fail (q4) or erase fail (q5)bit will be set. a read array command must be written to bring the device out of the abort state without incurring any wake up latency. note that once device is brought out, clear status register mode is required before a program or erase operation can be executed. sector protection the mx29l3211 features sector protection. this feature will disable both program and erase operations in either the top or the bottom sector (0 or 31). the sector protection feature is enabled using system software by the user(refer to table 3). the device is shipped with both sectors unprotected. alternatively, mxic may protect sectors in the factory prior to shipping the device. to activate this mode, a six-bus cycle operation is required. there are two 'unlock' write cycles. these are followed by writing the 'set-up' command. two more 'unlock' write cycles are then followed by the lock sector command - 20h. sector address is latched on the falling edge of ce or we of the sixth cycle of the command sequence. the automatic lock operation begins on the rising edge of the last we pulse in the command sequence and terminates when the status on q7 is '1' at which time the device stays at the read status register mode. the device remains enabled for read status register mode until the cir contents are altered by a valid command sequence (refer to table 3,6 and figure 10,12 ). verify sector protect to verify the protect status of the top and the bottom sector, operation is initiated by writing silicon id read command into the command register. following the command write, a read cycle from address xxx0h retrieves the manufacturer code of c2h. a read cycle from xxx1h returns the device code f9h. a read cycle from appropriate address returns information as to which sectors are protected. to terminate the operation, it is necessary to write the read/reset command sequence into the cir. (refer to table 3,4 and figure 12) a few retries are required if protect status can not be verified successfully after each operation. data protection the mx29l3211 is designed to offer protection against accidental erasure or programming caused by spurious system level signals that may exist during power transitions. during power up the device automatically resets the internal state machine in the read array mode. also, with its control register architecture, alteration of the memory contents only occurs after successful completion of specific multi-bus cycle command sequences. the device also incorporates several features to prevent inadvertent write cycles resulting from vcc power-up and power-down transitions or system noise.
14 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 low vcc write inhibit to avoid initiation of a write cycle during vcc power-up and power-down, a write cycle is locked out for vcc less than vlko(typically 1.8v). if vcc < vlko, the command register is disabled and all internal program/erase circuits are disabled. under this condition the device will reset to the read mode. subsequent writes will be ignored until the vcc level is greater than vlko. it is the user's responsibility to ensure that the control pins are logically correct to prevent unintentional write when vcc is above vlko. write pulse "glitch" protection noise pulses of less than 10ns (typical) on ce or we will not initiate a write cycle. logical inhibit writing is inhibited by holding any one of oe = vil,ce = vih or we = vih. to initiate a write cycle ce and we must be a logical zero while oe is a logical one.
15 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 1. automatic page program flow chart start write data a0h address 5555h no write data 55h address 2aaah write data aah address 5555h loading end? page program completed yes yes no sr7 = 1 ? wait 100us read status register write program data/address sr4 = 0 ? program error yes no yes to continue other operations, do clear s.r. mode first program another page? operation done, device stays at read s.r. mode note : s.r. stands for status register no
16 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 2. automatic chip erase flow chart start write data 80h address 5555h no write data 55h address 2aaah write data aah address 5555h chip erase completed yes yes no sr7 = 1 ? read status register sr5 = 0 ? erase error write data aah address 5555h write data 55h address 2aaah write data 10h address 5555h erase suspend flow (figure 4.) to execute suspend mode ? yes no operation done, device stays at read s.r. mode to continue other operations, do clear s.r. mode first
17 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 3. automatic sector erase flow chart start write data 80h address 5555h no write data 55h address 2aaah write data aah address 5555h sector erase completed yes yes no sr7 = 1 ? read status register sr5 = 0 ? erase error write data aah address 5555h write data 55h address 2aaah write data 30h sector address erase suspend flow (figure 4.) to execute suspend erase ? yes no operation done, device stays at read s.r. mode to continue other operations, do clear s.r. mode first
18 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 4. erase suspend/erase resume flow chart start write data b0h address 5555h no write data 55h address 2aaah write data aah address 5555h erase has completed yes yes no sr7 = 1 ? read status register sr6 = 1 ? erase error write data aah address 5555h write data 55h address 2aaah write data f0h address 5555h yes no sr5 = 0 ? write data d0h address 5555h write data 55h address 2aaah write data aah address 5555h yes no reading end ? read array continue erase to continue other operations, do clear s.r. mode first operation done, device stays at read s,r, mode erase suspend
19 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 electrical specifications absolute maximum ratings rating value ambient operating temperature 0 c to 70 c storage temperature -65 c to 125 c applied input voltage -0.5v to vcc+0.5v applied output voltage -0.5v to vcc+0.6v vcc to ground potential -0.5v to 4v a9 -0.5v to 12.5v notice: 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. notice: specifications contained within the following tables are subject to change. capacitance ta = 25 c, f = 1.0 mhz symbol parameter min. typ. max. unit conditions cin input capacitance 14 pf vin = 0v cout output capacitance 16 pf vout = 0v switching test circuits switching test waveforms 2.0v 0.8v 2.4v 0.45v test points input 1.5v output ac testing: inputs are driven at 2.4v for a logic "1" and 0.45v for a logic "0". input pulse rise and fall times are < 5ns. device under test diodes = in3064 or equivalent cl = 100 pf including jig capacitance 6.2k ohm 2.7k ohm 3.3v cl
20 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 5.1 dc characteristics vcc = 3.3v 10% symbol parameter notes min. typ. max. units test conditions iil input load 1 1 ua vcc = vcc max current vin = vcc or gnd ilo output leakage 1 10 ua vcc = vcc max current vin = vcc or gnd isb1 vcc standby 1 20 50 ua vcc = vcc max current(cmos) ce = vcc 0.2v isb2 vcc standby 1 2 ma vcc = vcc max current(ttl) ce = vih icc1 vcc read 1 50 80 ma vcc = vcc max current f = 10mhz, iout = 0 ma icc2 vcc erase 1,2 5 ma ce = vih suspend current sector erase suspended icc3 vcc program 1 30 60 ma program in progress current icc4 vcc erase current 1 30 60 ma erase in progress vil input low voltage 3 -0.3 0.6 v vih input high voltage 4 0.7vcc vcc+0.3 v vol output low voltage 0.45 v iol = 2.1ma, vcc = vcc min voh output high voltage 2.4 v ioh = -100ua, vcc = vcc min notes: 1. all currents are in rms unless otherwise noted. typical values at vcc = 3.3v, t = 25 c. these currents are valid for all product versions (package and speeds). 2. icc2 is specified with the device de-selected. if the device is read while in erase suspend mode, current draw is the sum o f icc2 and icc1. 3. vil min. = -1.0v for pulse width is equal to or less than 50ns. vil min. = -2.0v for pulse width is equal to or less than 20ns. 4. vih max. = vcc + 1.5v for pulse width is equal to or less than 20ns. if vih is over the specified maximum value, read opera tion cannot be guaranteed.
21 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 ac characteristics -- read operations 29l3211-10 29l3211-12 symbol descriptions min. max. min. max. unit conditions tacc address to output delay 100 120 ns ce=oe=vil tpa page mode access time 50 50 ns ce= oe = vil tce ce to output delay 100 120 ns oe=vil toe oe to output delay 30 30 ns ce=vil tdf oe high to output delay 0 20 0 20 ns ce=vil toh address to output hold 0 0 ns ce=oe=vil tbacc byte to output delay 100 120 ns ce= oe=vil tbhz byte low to output in high z 20 20 ns ce=vil test conditions: ? input pulse levels: 0.45v/2.4v ? input rise and fall times: 5ns ? output load: page speed output load(including scope and jig) tpa=50ns 1 ttl gate + 100pf tpa=40ns 1 ttl gate + 30pf ? reference levels for measuring timing: 1.5v note: 1. tdf is defined as the time at which the output achieves the open circuit condition and data is no longer driven.
22 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 5-1. normal read timing waveforms addresses tacc tce tdf toh toe addresses stable data out valid vcc 3.3v gnd data out ce oe power-up standby device and address selection outputs enabled data valid standby power-down vcc we vih vil vih vil vih vil vih vil voh vol high z high z vcc 1. for real world application, byte pin should be either static high(word mode) or static low(byte mode); dynamic switching of byte pin is not recommended. note:
23 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 6. byte timing waveforms figure 5-2. page read timing waveforms valid address a3-a20 (a-1), a0~a2 ce oe data out tacc tpa tpa tpa toe toh tdf addresses tacc tce tdf toh data output toe addresses stable data(q0-q7) ce oe byte vih vil vih vil vih vil vih vil voh vol voh vol high z high z data output data output high z tbacc high z tbhz data(q8-q15)
24 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 ac characteristics -- write/erase/program operations 29l3211-10 29l3211-12 symbol description min. max. min. max. unit twc write cycle time 120 120 ns tas address setup time 0 0 ns tah address hold time 60 60 ns tds data setup time 50 50 ns tdh data hold time 10 10 ns toes output enable setup time 0 0 ns tces ce setup time 0 0 ns tghwl read recover timebefore write 0 0 tcs ce setup time 0 0 ns tch ce hold time 0 0 ns twp write pulse width 60 60 ns twph write pulse width high 40 40 ns tbalc byte(word) address load cycle 0.3 30 0.3 30 us tbal byte(word) address load time 100 100 us tsra status register access time 120 120 ns tcesr ce setup before s.r. read 100 100 ns tvcs vcc setup time 2 2 us
25 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 7. command write timing waveforms tas toes tds tah din tdh tch tghwl valid addresses ce oe data high z we (d/q) vcc tcs twph twp twc tvcs 1.byte pin is treated as address pin all timing specifications for byte pin are the same as those for address pin. note: 2.byte pin is sampled on the falling edge of we or ce during the 3rd command write bus cycle; for real world application, byte pin should be either static high(word mode) or static low(byte mode).
26 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 8. automatic page program timing waveforms tas tds tah tdh tbalc a15~a20 ce oe data we twph twp twc aah 55h a0h srd 55h 55h aah 2ah 55h 55h word offset address page address page address a7~a14 a0~a6 tbal tces tsra write data note: low/high byte select a-1 (byte mode only) 1.please refer to page 9 for detail page program operation. last low/high byte select last word offset address last write data
27 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 9. automatic sector/chip erase timing waveforms tas tds tah tdh a16~a20 ce oe data we twph twp twc aah 55h 80h srd 5555h 2aaah 5555h sa/* a0~a14 tcesr tces tsra notes: 5555h 2aaah */5555h aah 55h 30h 1."*" means "don't care" in this diagram. 2."sa" means "sector adddress".
28 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 10. sector protection algorithm start, plscnt=0 write data 60h address 5555h no write data 55h address 2aaah write data aah address 5555h increment plscnt, to protect sector again yes yes no sr7 = 1 ? read status register to verify protect status ? data = c2h ? write data aah address 5555h write data 55h address 2aaah write data 20h, sector address* verify protect status flow (figure 12) device failed yes no protect sector operation terminated sector protected,operation done, device stays at verify sector protect mode device stays at read s.r. mode yes plscnt = 25 ? no write data 60h address 5555h write data 55h address 2aaah write data aah address 5555h yes no sr7 = 1 ? read status register write data aah address 5555h write data 55h address 2aaah write data 20h, sector address* note : *only the top or the bottom sector address is vaild in this feature. i.e. sector address = (a20,a19,a18,a17,a16) = 00000b or 11111b
29 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 11. sector unprotect algorithm start, plscnt=0 write data 60h address 5555h no write data 55h address 2aaah write data aah address 5555h increment plscnt, to unprotect sector again yes yes no sr7 = 1 ? read status register to verify protect status ? data = 00h ? write data aah address 5555h write data 55h address 2aaah write data 40h, sector address* verify protect status flow (figure 12) device failed yes no protect sector operation terminated sector unprotected,operation done, device stays at verify sector protect mode device stays at read s.r. mode yes plscnt = 25 ? no write data 60h address 5555h write data 55h address 2aaah write data aah address 5555h yes no sr7 = 1 ? read status register write data aah address 5555h write data 55h address 2aaah write data 40h, sector address* note : *only the top or the bottom sector address is vaild in this feature. i.e. sector address = (a20,a19,a18,a17,a16) = 00000b or 11111b
30 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 12. verify sector protect flow chart start write data 90h, address 5555h write data 55h, address 2aaah write data aah, address 5555h ptoect status read* * 1. protect status: data outputs c2h as protected sector verified code. data outputs 00h as unprotected sector verified code. 2. sepecified address will be either (a20,a19,a18,a17,a16,a1,a0) = (0000010) or (1111110), the rest of the address pins are don't care. 3. silicon id can be read via this flow chart. refer to table 4.
31 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 13. command write timing waveforms(alternate ce controlled) tas toes tds tah din tdh twh tghwl valid addresses ce oe data high z we (d/q) vcc tws tcph tcp twc tvcs note: 1. byte pin is treated as address pin. all timing specifications for byte pin are the same as those for address pin. 2. byte pin is sampled on the falling edge of we or ce during the 3rd command write bus cycle; for real world applicaton, byte pin should be either static high(word mode) or static low(byte mode).
32 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 figure 14. automatic page program timing waveform(alternate ce controlled) tas tds tah tdh tbalc a15~a20 ce(1) oe data we tcph tcp twc aah 55h a0h srd 55h 55h aah 2ah 55h 55h word offset address page address page address a7~a14 a0~a6 tbal tces tsra write data note: low/high byte select a-1 (byte mode only) 1.please refer to page 9 for detail page program operation. last word offset address last low/high byte select last write data
33 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 latchup characteristics min. max. input voltage with respect to gnd on all pins except i/o pins -1.0v 6.6v input voltage with respect to gnd on all i/o pins -1.0v vcc + 1.0v current -100ma +100ma includes all pins except vcc. test conditions: vcc = 3.3v, one pin at a time. erase and programming performance limits parameter min. typ. max. units chip/sector erase time 200 2000 ms page programming time 5 500 ms chip programming time 80 800 sec byte program time 20 2000 us erase/program cycles 10,000 cycles
34 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 ordering information plastic package part no. access time operating current standby current package (ns) max.(ma) max.(ua) MX29L3211MC-10 100 50 20 44 pin sop mx29l3211tc-10 100 50 20 48 pin tsop
35 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 package information 44-pin plastic sop
36 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 48-pin plastic tsop(normal type)
37 p/n:pm0641 rev. 0.3, nov. 06, 2001 mx29l3211 history story revision description page date 0.1 add 48tsop p1,2 jan/19/2000 add order information p34 add package information p35 0.2 del fast pagemode access time:30ns p1 may/15/2000 modify 29l3211-10 tpa:30-->50 ; 29l3211-12 tpa:40-->50 p21 add tpa=50ns 1 ttl gate + 100pf ; tpa=40ns 1 ttl gate + 30pf p21 0.3 to modify package information p35~36 nov/06/2001
38 mx29l3211 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 japan office: tel:+81-44-246-9100 fax:+81-44-246-9105 singapore office: tel:+65-348-8385 fax:+65-348-8096 taipei office: tel:+886-2-2509-3300 fax:+886-2-2509-2200 m acronix a merica, i nc. tel:+1-408-453-8088 fax:+1-408-453-8488 chicago office: tel:+1-847-963-1900 fax:+1-847-963-1909 http : //www.macronix.com macronix international co., ltd. reserves the right to change product and specifications without notice.

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