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  features ? serial peripheral interface (spi) compatible  supports spi modes 0 (0,0) and 3 (1,1) ? datasheet describes mode 0 operation  50 mhz clock rate  byte mode and page mode progra m (1 to 256 bytes) operations  sector/block/page architecture ? sixteen 256 byte pages per sector ? sixteen 4 kbyte sectors per block ? eight uniform 64 kbyte blocks  self-timed sector, block and chip erase  product identification mo de with jedec standard  low-voltage operation ?2.7v (v cc = 2.7v to 3.6v)  hardware and software write protection ? device protection with write protect ( wp ) pin ? write enable and write disable instructions ? software write protection: upper 1/64, 1/32, 1/16, 1/8, 1/4, 1/2 or entire array  flexible op codes for maximum compatibility  self-timed program cycle ? 30 s/byte typical  single cycle reprogramming (erase and program) for status register  high reliability ? endurance: 10,000 write cycles typical  8-lead jedec 150mil soic and 8- lead small array package (sap) description the at25fs040 provides 4,194,304 bits of serial reprogrammable flash memory organized as 524,288 words of 8 bits each. the device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. the at25fs040 is available in a space-saving 8-lead jedec soic and 8-lead sap packages. table 1. pin configuration pin name function cs chip select sck serial data clock si serial data input so serial data output gnd ground vcc power supply wp write protect hold suspends serial input high speed small sectored spi flash memory 4m (524,288 x 8) at25fs040 advance information 5107b?sflsh?12/05 8-lead jedec soic 1 2 3 4 8 7 6 5 cs so wp gnd vcc hold sck si 8-lead sap 1 2 3 4 8 7 6 5 vcc hold sck si cs so wp gnd ___ ___ _____ bottom view
absolute maximum ratings* 2 at25fs040 5107b?sflsh?12/05 the at25fs040 is enabled through the chip select pin (cs ) and accessed via a 3-wire interface consisting of serial data input (si) , serial data output (so), and serial clock (sck). all write cycles ar e completely self-timed. block write protection for upper 1/64, 1/32, 1/16, 1/8, 1/4, 1/2 or the entire memory array is enabled by programming the status register. separate write enable and write disable instructions are provided for additi onal data protection. hardware data protec- tion is provided via the wp pin to protect against inadvertent write attempts to the status register. the hold pin may be used to suspend any serial communication without resetting the serial sequence. figure 1. block diagram operating temperature....................................?40 q c to +85 q c *notice: stresses beyond those listed under ?absolute maximum ratings? may cause permanent dam- age to the device. this is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. storage temperature .....................................?65 q c to +150 q c voltage on any pin  with respect to ground .................................... ?1.0v to +5.0v maximum operating voltage ............................................ 4.2v dc output current........................................................ 5.0 ma 524,288 x 8
table 2. pin capacitance (1) c out output capacitance (so) 8 pf v out = 0v c in input capacitance ( cs , sck, si, wp , hold ) 6 pf v in = 0v 3 at25fs040 5107b?sflsh?12/05 note: 1. this parameter is characterized and is not 100% tested. note: 1. v il and v ih max are reference only and are not tested. applicable over recommended operating range from t a = 25 q c, f = 1.0 mhz, v cc = +3.6v (unless otherwise noted) symbol test conditions max units conditions table 3. dc characteristics (prelimin ary ? subject to change) applicable over recommended operating range from: t ai = ? 40 q c to +85 q c, v cc = +2.7v to +3.6v,  t ac = 0 q c to +70 q c, v cc = +2.7v to +3.6v (unless otherwise noted) symbol parameter test co ndition min typ max units v cc supply voltage 2.7 3.6 v i cc1 supply current v cc = 3.6v at 20 mhz, so = open read 10.0 17.0 ma i cc2 supply current v cc = 3.6v at 20 mhz, so = open write 15.0 45.0 ma i sb standby current v cc = 2.7v, cs = v cc 2.0 10.0 a i il input leakage v in = 0v to v cc -3.0 3.0 a i ol output leakage v in = 0v to v cc , t ac = 0 q c to 70 q c -3.0 3.0 a v il (1) input low voltage -0.6 v cc x 0.3 v v ih (1) input high voltage v cc x 0.7 v cc + 0.5 v v ol output low voltage 2.7v d v cc d 3.6v i ol = 0.15 ma 0.2 v v oh output high voltage i oh = -100 a v cc - 0.2 v
table 4. ac characteristics (preliminary ? subject to change) 0 50 mhz 5 ns 5 ns 9 ns 9 ns 100 ns 5 ns 5 ns 5 ns 5 ns 5 ns 5 ns 9 ns 0 ns 9 ns 9 ns 9 ns 1.1 s 60 ms 30 50 s 10k write cycles (3) 4 at25fs040 5107b?sflsh?12/05 notes: 1. the programming time for n bytes will be equal to n x t bpc . 2. this parameter is characterized at 3.0v. 3. one write cycle consists of erasing a sector , followed by programming the same sector. applicable over recommended operating range from t a = ? 40 q c to +85 q c, v cc = +2.7v to +3.6v  c l = 1 ttl gate and 30 pf (unless otherwise noted) symbol parameter min typ max units f sck sck clock frequency t ri input rise time t fi input fall time t wh sck high time t wl sck low time t cs cs high time t css cs setup time t csh cs hold time t su data in setup time t h data in hold time t hd hold setup time t cd hold hold time t v output valid t ho output hold time t lz hold to output low z t hz hold to output high z t dis output disable time t ec erase cycle time per sector/block t sr status register write cycle time t bpc byte program cycle time (1) endurance (2)
5 at25fs040 5107b?sflsh?12/05 serial interface description master: the device that generates the serial clock. slave: because the serial clock pin (sck) is always an input, the at25fs040 always operates as a slave. transmitter/receiver: the at25fs040 has separate pins designated for data transmission (so) and reception (si). msb: the most significant bit (msb) is the first bit transmitted and received. serial op-code: after the device is selected with cs going low, the first byte will be received. this byte contains the op-code t hat defines the operations to be performed. invalid op-code: if an invalid op-code is received , no data will be shifted into the at25fs040, and the serial out put pin (so) will remain in a high impedanc e state until the falling edge of cs is detected again. this will rein itialize the serial communication. chip select: the at25fs040 is selected when the cs pin is low. when the device is not selected, data will not be accepted via the si pin, and the serial output pin (so) will remain in a high impedance state. hold: the hold pin is used in conjunction with the cs pin to select the at25fs040. when the device is selected and a serial sequence is underway, hold can be used to pause the serial communication with the master device without resetting the serial sequence. to pause, the hold pin must be brought low while the sck pin is low. to resume serial comm unication, the hold pin is brought high while the sck pin is low (sck may still toggle during hold ). inputs to the si pin will be ignored while the so pin is in the high impedance state. write protect: the at25fs040 has a write lockout feature that can be activated by asserting the write protect pin (wp ). when the lockout feature is activated, locked-out sectors will be read only. the write protect pin will allow normal read/write operations when held high. when the wp is brought low and wpen bit is ?1?, all write operations to the status register are inhibited. wp going low while cs is still low will inte rrupt a write to the status register. if the internal status re gister write cycle has already been initiated, wp going low will have no effect on any write operation to the status register. the wp pin function is blocked when the wpen bit in the status register is ?0?. this will allow the user to install the at25fs040 in a system with the wp pin tied to ground and still be able to write to the status register. all wp pin functions are enabled when the wpen bit is set to ?1?.
6 at25fs040 5107b?sflsh?12/05 figure 2. spi serial interface master: microcontroller slave: at25fs040 data out (mosi) data in (miso) serial clock (spi ck) ss0 ss1 ss2 ss3 si so sck cs si so sck cs si so sck cs si so sck cs
7 at25fs040 5107b?sflsh?12/05 functional description the at25fs040 is designed to interface directly with the synchronous serial peripheral interface (spi) of the 6800 type series of microcontrollers. the at25fs040 utilizes an 8-bit instruction regi ster. the list of instructions and their operation codes are contained in table 5. all instructions, addresses, and data are transferred with the msb first and start with a high-to-low transition. write is defined as program and/or erase in this specification. the following commands, program, sector erase, block erase, chip erase, and wrsr are write instructions for at25fs040. note: 1. either one of the op codes will execute the instruction. write enable (wren): the device will power up in the write disable state when v cc is applied. all write instructions must therefore be preceded by the wren instruction. write disable (wrdi): to protect the device against inadvertent writes, the wrdi instruction disables all write commands. the wrdi instruction is independent of the sta- tus of the wp pin. read status register (rdsr): the rdsr instruction provides access to the sta- tus register. the ready/busy and write enable status of the device can be determined by the rdsr instruction. similarly, the block write protection bits indicate the extent of table 5. instruction set for the at25fs040 instruction name one byte opcode operation binary hex wren 0000 x110 06 set write enable latch wrdi 0000 x100 04 reset write enable latch rdsr 0000 x101 05 read status register wrsr 0000 x001 01 write status register read 0000 0011 03 read data from memory array fast read 0000 1011 0b read data from memory array (with dummy cycles) program 0000 x010 02 program data into memory array sector erase (1) 0010 0000 20 erase one 4kbyte sector in memory array 1101 0111 d7 block erase (1) 0101 0010 52 erase one 64kbyte block in memory array 1101 1000 d8 chip erase (1) 0110 0000 60 erase all memory array 1100 0111 c7 rdid (1) 1001 1111 9f read manufacturer and product id 1010 1011 ab
8 at25fs040 5107b?sflsh?12/05 protection employed. these bits are set by using the wrsr instruction. during internal write cycles, all other commands will be ignored except the rdsr instruction. read product id (rdid): the rdid instruction allows the user to read the manufac- turer id byte followed by two device id bytes. the manufacturer id is assigned by jedec and is 1fh for atmel (see table 8). th e first device id byte indicates the mem- ory type (66h=at25fs040) followed by the device memory capacity byte (04h). for maximum compatibility and flexibility, two rdid opcodes (9fh and abh) are supported and will perform the same operation. the device is first selected by driving chip select (cs ) low then the rdid opcode is shifted in on serial in (si) during rising edge of clock. the 24-bit manufacturer and device identification codes stored in memo ry are clocked out on serial output (so) starting on the falling edge of clock (see figure 15). if cs stays low after the last bit of second device id byte is sh ifted out, the manufacturer id and 2 byte device id will con- tinue to be clocked out until cs goes high. the rdid sequence is terminated any time cs is driven high and the dev ice will go into standby mode. write status register (wrsr): the wrsr instruction allows the user to select one of eight levels of protection for the at25fs040. the at25fs040 is divided into eight blocks where the top 1/64, 1/32, 1/16, 1/8, top quarter (1/4), top half (1/2), or all of the memory blocks can be protected (locked out) from write. any of the locked-out blocks will therefore be read only. the lo cked-out sector/block and the corresponding status register control bits are shown in table 9 on page 9. table 6. status register format bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 wpen bp4 bp3 bp2 bp1 bp0 wen rdy table 7. read status register bit definition bit definition bit 0 (rdy ) bit 0 = 0 (rdy ) indicates the device is ready. bit 0 = 1 indicates the write cycle is in progress. bit 1 (wen) bit 1 = 0 indicates the device is not write enabled. bit 1 = 1 indicates the device is write enabled. bit 2 (bp0) see table 9. bit 3 (bp1) see table 9. bit 4 (bp2) see table 9. bit 5 (bp3) see table 9. bit 6 (bp4) see table 9. bit 7 (wpen) see table 10. bits 0-7 are 1s during an internal write cycle. table 8. read product id (rdid) manufacturer id device id memory type memory capacity 1fh 66h 04h
9 at25fs040 5107b?sflsh?12/05 the six bits, bp0, bp1, bp2, bp3, bp4 and wpen, are nonvolatile cells that have the same properties and functions as the regular memory cells. note: 1. x = don?t care the wrsr instruction also allows the user to enable or disable the write protect (wp ) pin through the use of the write protect enable (wpen) bit. hardware write protection is enabled when the wp pin is low and the wpen bit is ?1?. hardware write protection is disabled when either the wp pin is high or the wpen bit is ?0.? when the device is hard- ware write protected, writes to the status register, including the block protect bits and the wpen bit, and the locked-out sectors in the memory array are disabled. write is only allowed to sectors of the memory which are not locked out. the wrsr instruction is self-timed to automatically erase an d program bp0, bp1, bp2, bp3, bp4 and wpen bits. in order to write the status register, two separate instructions must be executed. first, the device must be write enabled via the wren instruction. then, cs must be low and the wrsr instruction and data for the six bits are entered. the wrsr write cycle will begin once cs goes high. during the internal writ e cycle, all instructions will be ignored except rdsr instructions. the at25fs 040 will automatically return to write dis- able state at the completion of the wrsr cycle. the status register is factory programmed to all 0?s. note: when the wpen bit is hardware write protec ted, it cannot be changed back to ?0?, as long as the wp pin is held low. table 9. sector/block write protect bits level status register bits at25fs040 bp4 bp3 bp2 bp1 bp0 array address locked out locked-out blocks 0(none) 0 0 0 0 0 none none 1(1/64) 0 1 0 0 0 07e000h - 07ffffh sector 15-16 of block 8 2(1/32) 1 0 0 0 0 07c000h - 07ffffh sector 13-16 of block 8 3(1/16) 1 1 0 0 0 078000h - 07ffffh sector 9-16 of block 8 4(1/8) x x 0 0 1 070000h - 07ffffh all sectors of block 8 5(1/4) x x 0 1 0 060000h - 07ffffh all sectors of block 7,8 6(1/2) x x 0 1 1 040000h - 07ffffh a ll sectors of block 5,6,7,8 7(all) x x 1 x x 000000h - 07ffffh all sectors of all blocks (1-8) table 10. wpen operation wpen wp wen protectedblocks unpr otectedblocks status register 0 x 0 protected protected protected 0 x 1 protected writable writable 1 low 0 protected protected protected 1 low 1 protected writable protected x high 0 protected protected protected x high 1 protected writable writable
10 at25fs040 5107b?sflsh?12/05 read (read): the read instruction sequence reads the memory array up to the max- imum speed of 50mhz. reading the at25fs040 via the so (serial output) pin requires the following sequence. after the cs line is pulled low to select the device, the read instruction is clocked in on the si line, followed by the byte address to be read. upon completion, any data on the si line will be ignored. the data (d7- d0) at the specified address is then shifted out onto the so line (see figure 8). if only one byte is to be read, the cs line should be driven high after the least significant data bit. to continue read operation and sequentially read subsequent byte addresses from the device by simply keeping cs low and provide a clock signal. the device incorporates an internal address counter that automatically increments to next byte address during sequential read oper- ation. the read instruction can be conti nued since the byte address is automatically incremented and data will continue to be shif ted out of th e at25fs040 unt il the highest byte address is reached. when the last bit of the memory has been read, the device will continue reading back at the beginning of the array (000000h) without delay. the data is always output from the device with the most significant bit (msb) of a byte first. the read sequence is terminated any time cs is driven high and the device will go into standby mode. fast read (fast read): the fast read instruction sequence reads the memory array up to the maximum speed of 50mhz (same as standard read sequence). the fast read is an alternate command for the read and allows for fast read instruc- tion compatibility support. the difference between the two is fast read requires a ?dummy byte? and read does not. reading the at25fs040 via the so (serial output) pin requires the following sequence. after the cs line is pulled low to select the device, the fast read instruction is clocked in on the si line, followed by the byte address to be read and the dummy byte (the so line output will be high z state). upon completion, any data on the si line will be ignored. the data (d7-d0) at th e specified address is then shifted out onto the so line (see figure 9). if only one byte is to be read, the cs line should be driven high after the least signific ant data bit. to continue read operation and sequentially read subsequent byte addresses from the device by simply keeping cs low and provide a clock signal. the device incorporates an internal address counter that automatically increments to next byte address during sequential read operation. the fast read instruction can be continued sinc e the byte address is automatically incre- mented and data will continue to be shifted out of the at 25fs040 until the highest address is reached. when the last bit of the memory has been read, the device will con- tinue reading back at the beginning of the array (000000h) without delay. the data is always output from the device with the most significant bit (msb) of a byte first. the fast read sequence is terminated any time cs is driven high and the device will go into standby mode. program (program): the program instruction allows up to 256 data bytes to be written to each page in the memory in one-operation changing data bits from a logic 1 to 0 state. the at25fs040 memory array contains 524,288 programmable data bytes internally organized into 256 bytes per page with a total of 2048 pages in the memory. in order to program the at25fs040, two separate instructions must be executed. first, the device must be write enabled via t he wren instruction. then the program instruction can be executed and requires the following sequence. after the cs line is pulled low to select the device, the program instruction is clocked in via the si line followed by the byte address (see figure 10) and the data byte(s) to be programmed. programming will start after cs pin is brought high. please note: the low to high transi- tion of the cs pin must occur during the sck low time immediately after clocking in the d0 (lsb) data bit to initiate programming cycle. also, a wren instruction must precede each and every program instruction. the ready/busy status of the device can be determined by initiating a rds r instruction. if bit 0=1, the program cycle is still in
11 at25fs040 5107b?sflsh?12/05 progress. if bit 0=0, the programming cycl e has ended. only the rdsr instruction is enabled during the programming cycle and all other opcode instructions are ignored until programming cycle has completed. a single program instruction programs 1 to 256 consecutive bytes within a page if it is not write protected. the starting byte address can be anywhere within the page. when the end of the page is reached, the address will wrap around to the beginning of the same page. if the data to be programmed is less than a full page, the data of all other bytes on the same page will remain unchanged meaning that the unwritten address locations within the page will not be changed. if more than 256 bytes of data are provided, the addre ss counter will roll over on the sa me page and the previous data provided will be replaced. t he same byte cannot be repr ogrammed without erasing the whole sector or block first. the at25fs040 will automatically return to the write disable state at the completion of the programming cycle. note: if the device is not write enabled (wren), the device will ignore the write instruction and will return to the standby state when cs is brought high. a new cs falling edge is required to re-initiate the serial communication. erase operation: the at25fs040 memory array is internally organized into uni- form 4k byte sectors or uniform 64k byte uniform blocks (see table 12). before data can be reprogrammed, the sector or block that contains the data must be erased first. in order to erase the at25fs040, there are three flexible erase instructions that can be executed as follows: sector erase, block erase and chip erase instructions. a sector erase instruction allows erasing an y individual 4k sect or without changing data in rest of memory. the block erase instruction allows erasing any individual block and chip erase allows erasing the entire memory array. sector erase (sector erase): the sector erase instruction sets all 4k bytes in the selected sector to logic 1 or erased state. in order to sector erase the at25fs040, two separate instructions must be executed. first, the device must be write enabled via the wren instruction. then the sector erase instruction can be exe- cuted and will erase every by te in the selected sector if t he sector is not locked out. the sector address is automatically determined if any address within the sector is selected (see figure 12). the sector erase instruction is interna lly controlled and self timed to completion. during this time, all command s will be ignored except rdsr instruction. the progress or completion of the erase operation can be determined by reading ready/busy bit (bit 0) through rdsr instruction. if bit 0=1, sector erase cycle is in progress. if bit 0=0, the er ase operation has been comple ted. the at25fs040 will auto- table 11. address key address at25fs040 a n a 18 - a 0 don?t care bits a 23 - a 19
12 at25fs040 5107b?sflsh?12/05 matically return to the write disable state at the completion of the sector erase cycle. table 12. sector and block address block 8 1/8 1/16 1/32 1/64 sector 16 07ffffh 07f000h sector 15 07efffh 07e000h sector 14 07dfffh 07d000h sector 13 07cfffh 07c000h sector 12 07bfffh 07b000h sector 11 07afffh 07a000h sector 10 079fffh 079000h sector 9 078fffh 078000h sector 8 077fffh 077000h sector 7 076fffh 076000h sector 6 075fffh 075000h sector 5 074fffh 074000h sector 4 073fffh 073000h sector 3 072fffh 072000h sector 2 071fffh 071000h sector 1 070fffh 070000h block 7 06ffffh 060000h
13 at25fs040 5107b?sflsh?12/05 block erase (block erase): the block erase instruction sets all 64k bytes in the selected block to logic 1 or erased state. in order to block erase the at25fs040, two separate instructions must be executed. first, the device must be write enabled via the wren instruction. then the block erase instruction can be executed and will erase every byte in the selected block if the block is not locked out. the block address is automatically determined if any address within the block is selected (see figure 13). the block erase instruction is internally contro lled and self timed to completion. during this time, all commands will be ignored exce pt rdsr instruction. the progress or com- pletion of the erase operation can be determined by reading ready/busy bit (bit 0) through rdsr instruction. if bit 0=1, block erase cycle is in progress. if bit0=0, the erase operation has been completed. the at 25fs040 will automatically return to the write disable state at the completion of the block erase cycle. chip erase (chip erase): as an alternative to the sector erase/block erase, the chip erase instruction will erase every byte in all sectors that are not locked out. first, the device must be write enabled via the wren instruction. then the chip erase instruction can be executed. the chip erase instruction is internally controlled; it will automatically be timed to completion. the chip erase cycle time typ- ically is 8 seconds. during t he internal erase cycle , all instructions will be ignored except rdsr. the at25fs040 will automatically return to the write disable state at the comple- tion of the chip erase cycle. block 6 05ffffh 050000h block 5 04ffffh 040000h block 4 03ffffh 030000h block 3 02ffffh 020000h block 2 01ffffh 010000h block 1 00ffffh 000000h table 12. sector and block address (continued)
14 at25fs040 5107b?sflsh?12/05 timing diagrams (for spi mode 0 (0, 0)) figure 3. synchronous data timing figure 4. wren timing figure 5. wrdi timing so v oh v ol hi-z hi-z t v valid in si v ih v il t h t su t dis sck v ih v il t wh t csh cs v ih v il t css t cs t wl t ho
15 at25fs040 5107b?sflsh?12/05 figure 6. rdsr timing figure 7. wrsr timing figure 8. read timing cs sck 0123456789101112131415 si so 76543210 data out msb high impedance rdsr op-code wrsr op-code read op-code 3 1
16 at25fs040 5107b?sflsh?12/05 figure 9. fast read timing figure 10. program timing figure 11. hold timing cs si sck high impedance 3-byte address 01234 4 5 5 6 6 7 7 8 9 10 11 28 23 22 21 3 ... 21 321 0 0 29 30 31 32 33 34 35 36 37 38 39 so 4 5 6 7 3210 dummy byte fast read op-code 40 41 42 43 44 45 46 47 cs sck si so 3-byte address 1st byte data-in 256th byte data-in high impedance 0123456789101128 23 22 21 3 1 0 6 5 4 3 2 1 0 7 2 29 30 31 32 33 34 2075 2076 2078 2077 2079 program op-code so sck hold t cd t hd t hz t lz t cd t hd cs
17 at25fs040 5107b?sflsh?12/05 figure 12. sector erase timing figure 13. block erase timing sector erase op-code block era s e op-code
18 at25fs040 5107b?sflsh?12/05 figure 14. chip erase timing figure 15. rdid timing chip era s e op-code 12 13 14 15 16 17 18 31 cs sck si so 0 1 2 3 4 5 6 7 8 910 11 high impedance 28 29 30 data out 15 14 3 21 0 device identification manufacturer code (atmel = 1fh) rdid op-code
ordering information ordering code at25fs040n-su-2.7 at25fs040y4-yh-2.7 lead-free/halogen-free/ industrial temperature (?40 q c to 85 q c) 19 at25fs040 5107b?sflsh?12/05 package operation range 8s1 8y4 package type 8s1 8-lead, 0.150? wide, plastic gull wing small outline (jedec soic) 8y4 8-lead, 6.00 mm x 4.90 mm body, dual footpr int, non-leaded, small array package (sap) options ?2.7 low voltage (2.7v to 3.6v)
20 at25fs040 5107b?sflsh?12/05 package information 8s1 ? jedec soic 1150 e. cheyenne mtn. blvd. color a do s pring s , co 8 0906 title drawing no. r rev. note: 10/7/0 3 8s 1 , 8 -le a d (0.150" wide body), pl as tic g u ll wing s m a ll o u tline (jedec s oic) 8s 1 b common dimen s ion s (unit of me asu re = mm) s ymbol min nom max note a1 0.10 ? 0.25 the s e dr a wing s a re for gener a l inform a tion only. refer to jedec dr a wing m s -012, v a ri a tion aa for proper dimen s ion s , toler a nce s , d a t u m s , etc. a 1. 3 5 ? 1.75 b 0. 3 1 ? 0.51 c 0.17 ? 0.25 d 4. 8 0 ? 5.00 e1 3 . 8 1 ? 3 .99 e 5.79 ? 6.20 e 1.27 b s c l 0.40 ? 1.27 ? ?
21 at25fs040 5107b?sflsh?12/05 8y4 ? sap 1150 e. cheyenne mtn. blvd. color a do s pring s , co 8 0906 title drawing no. r rev. 8 y4 , 8 -le a d (6.00 x 4.90 mm body) s oic arr a y p a ck a ge ( s ap) y4 a 8 y4 5/24/04 common dimen s ion s (unit of me asu re = mm) s ymbol min nom max note a ? ? 0.90 a1 0.00 ? 0.05 d 5. 8 0 6.00 6.20 e 4.70 4.90 5.10 d1 2. 8 5 3 .00 3 .15 e1 2. 8 5 3 .00 3 .15 b 0. 3 5 0.40 0.45 e 1.27 typ e1 3 . 8 1 ref l 0.50 0.60 0.70 a e a1 b pin 1 index area d a pin 1 id e1 d1 l e e1
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