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M29F400BT45N3E Datasheet(PDF) 2 Page - STMicroelectronics

Part # M29F400BT45N3E
Description  4 Mbit (512Kb x8 or 256Kb x16, Boot Block) single supply Flash memory
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29F400BT45N3E Datasheet(HTML) 2 Page - STMicroelectronics

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Contents
M29F400BT, M29F400BB
2/40
Contents
1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
Signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1
Address inputs (A0-A17) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2
Data inputs/outputs (DQ0-DQ7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3
Data inputs/outputs (DQ8-DQ14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.4
Data input/output or address input (DQ15A-1) . . . . . . . . . . . . . . . . . . . . . 10
2.5
Chip Enable (E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6
Output Enable (G) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.7
Write Enable (W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.8
Reset/Block Temporary Unprotect (RP) . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.9
Ready/Busy output (RB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10
Byte/Word organization select (BYTE) . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.11
VCC supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.12
VSS ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3
Bus operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1
Bus Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2
Bus Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3
Output Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4
Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.5
Automatic Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.6
Special bus operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.6.1
Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.6.2
Block Protection and Blocks Unprotection . . . . . . . . . . . . . . . . . . . . . . . 14
4
Command interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1
Read/Reset command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2
Auto Select command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3
Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.4
Unlock Bypass command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.5
Unlock Bypass Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17


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