Flash memory. M29W400DB Datasheet

M29W400DB memory. Datasheet pdf. Equivalent

Part M29W400DB
Description 3V supply Flash memory
Feature M29W400DT M29W400DB 4 Mbit (512 Kb x 8 or 256 Kb x 16, boot block) 3 V supply Flash memory Features.
Manufacture Numonyx
Datasheet
Download M29W400DB Datasheet



M29W400DB
M29W400DT
M29W400DB
4 Mbit (512 Kb x 8 or 256 Kb x 16, boot block)
3 V supply Flash memory
Features
„ Supply voltage
– VCC = 2.7 V to 3.6 V for Program, Erase
and Read
„ Access time: 45, 55, 70 ns
„ Programming time
– 10 μs per byte/word typical
„ 11 memory blocks
– 1 boot block (top or bottom location)
– 2 parameter and 8 main blocks
„ Program/Erase controller
– Embedded byte/word program algorithms
„ Erase Suspend and Resume modes
– Read and Program another block during
Erase Suspend
„ Unlock bypass program command
– Faster production/batch programming
„ Temporary block unprotection mode
„ Low power consumption
– Standby and Automatic Standby
„ 100,000 Program/Erase cycles per block
„ Electronic signature
– Manufacturer code: 0020h
– Top device code M29W400DT: 00EEh
– Bottom device code M29W400DB: 00EFh
– RoHS packages
„ Automotive Device Grade 3
– Temperature: –40 to 125 °C
– Automotive grade certified
SO44 (M)(1)
TSOP48 (N)
12 x 20 mm
FBGA
TFBGA48 (ZA)(1)
6 x 9 mm
FBGA
TFBGA48 (ZE)
6 x 8 mm
1. These packages are no more in mass production.
April 2009
Rev 8
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www.numonyx.com
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M29W400DB
Contents
Contents
M29W400DT, M29W400DB
1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 Address inputs (A0-A17) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 Data inputs/outputs (DQ0-DQ7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3 Data inputs/outputs (DQ8-DQ14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.4 Data input/output or Address input (DQ15A-1) . . . . . . . . . . . . . . . . . . . . 13
2.5 Chip Enable (E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6 Output Enable (G) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7 Write Enable (W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.8 Reset/Block Temporary Unprotect (RP) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.9 Ready/Busy output (RB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.10 Byte/Word Organization Select (BYTE) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.11 VCC supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.12 VSS ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3 Bus operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.1 Bus Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2 Bus Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3 Output Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4 Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5 Automatic Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.6 Special bus operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.7 Electronic signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.8 Block protection and blocks unprotection . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Command interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Read/Reset command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Auto Select command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.3 Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.4 Unlock Bypass command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.5 Unlock Bypass Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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