ai02074 19 a0-a18 w dq0-dq7 v cc m29w040 g e v ss 8 logic diagram m29w040 4 mbit (512kb x8, uniform block) low voltage single supply flash memory data briefing 2.7v to 3.6v supply voltage for program, erase and read operations fast access time: 100ns byte programming time: 12 m s typical erase time block: 1.5 sec typical chip: 2.5 sec typical program/erase controller (p/e.c.) program byte-by-byte data polling and toggle bits protocol for p/e.c. status memory erase in blocks 8 uniform blocks of 64 kbytes each block protection multiblock erase erase suspend and resume modes low power consumption read mode: 8ma typical (at 12mhz) stand-by mode: 20 m a typical automatic stand-by mode power down software command power-down mode: 1 m a typical 100,000 program/erase cycles per block 20 years data retention defectivity below 1ppm/year electronic signature manufacturer code: 20h device code: e3h description the m29w040 is a non-volatile memory that may be erased electrically at the block level, and pro- grammed byte-by-byte. the interface is directly compatible with most mi- croprocessors. plcc32, tsop32 (8 x 20mm)and tsop32 (8 x 14mm) packages are available. both normal and reverse pin outs are available for the tsop32 (8 x 20mm) package. b29w040/807 1/3 complete data available on data-on-disc cd-rom or at www.st.com plcc32 (k) tsop32 (n) 8 x 20mm tsop32 (nz) 8 x 14mm
a1 a0 dq0 a7 a4 a3 a2 a6 a5 a13 a10 a8 a9 dq7 a14 a11 g e dq5 dq1 dq2 dq3 dq4 dq6 a17 w a16 a12 a18 v cc a15 ai02076 m29w040 (normal) 8 1 9 16 17 24 25 32 v ss tsop pin connections ai02075 a17 a13 a10 dq5 17 a1 a0 dq0 dq1 dq2 dq3 dq4 a7 a4 a3 a2 a6 a5 9 w a8 1 a16 a9 dq7 a12 a14 32 a18 v cc m29w040 a15 a11 dq6 g e 25 v ss lcc pin connections 2/3 a0-a18 address inputs dq0-dq7 data input / outputs e chip enable g output enable w write enable v cc supply voltage v ss ground signal names a1 a0 dq0 a7 a4 a3 a2 a6 a5 a13 a10 a8 a9 dq7 a14 a11 g e dq5 dq1 dq2 dq3 dq4 dq6 a17 w a16 a12 a18 v cc a15 ai02077 m29w040 (reverse) 8 1 9 16 17 24 25 32 v ss tsop reverse pin connections m29w040
3/3 m29w040 ordering information scheme note: 1. this speed is obtained with a supply voltage range of v cc = 3.3v 0.3v and a load capacitance at 30pf. device are shipped from the factory with the memory content erased (to ffh). for a list of available options (speed, package, etc...) or for further informationon any aspect of this device, please contact the stmicroelectronics sales office nearest to you. operating voltage w 2.7v to 3.6v speed -100 (1) 100ns -120 120ns -150 150ns -200 200ns package k plcc32 n tsop32 8 x 20mm nz tsop32 8 x 14mm temp. range 1 0 to 70 c 5 20 to 85 c 6 40 to 85 c option r reverse pinout tr tape & reel packing example: m29w040 -120 n 1 tr
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