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M29F400B

ST Microelectronics
Part Number M29F400B
Manufacturer ST Microelectronics
Description 4 Mbit 512Kb x8 or 256Kb x16 / Boot Block Single Supply Flash Memory
Published Apr 26, 2005
Detailed Description M29F400T M29F400B 4 Mbit (512Kb x8 or 256Kb x16, Boot Block) Single Supply Flash Memory NOT FOR NEW DESIGN M29F400T and...
Datasheet PDF File M29F400B PDF File

M29F400B
M29F400B

Overview
M29F400T M29F400B 4 Mbit (512Kb x8 or 256Kb x16, Boot Block) Single Supply Flash Memory NOT FOR NEW DESIGN M29F400T and M29F400B are replaced respectively by the M29F400BT and M29F400BB 5V±10% SUPPLY VOLTAGE for PROGRAM, ERASE and READ OPERATIONS FAST ACCESS TIME: 55ns FAST PROGRAMMING TIME – 10µs by Byte / 16µs by Word typical PROGRAM/ERASE CONTROLLER (P/E.
C.
) – Program Byte-by-Byte or Word-by-Word – Status Register bits and Ready/Busy Output MEMORY BLOCKS – Boot Block (Top or Bottom location) – Parameter and Main blocks BLOCK, MULTI-BLOCK and CHIP ERASE MULTI-BLOCK PROTECTION/TEMPORARY UNPROTECTION MODES ERASE SUSPEND and RESUME MODES – Read and Program another Block during Erase Suspend LOW POWER CONSUMPTION – Stand-by and Automatic Stand-by 100,000 PROGRAM/ERASE CYCLES per BLOCK 20 YEARS DATA RETENTION – Defectivity below 1ppm/year ELECTRONIC SIGNATURE – Manufacturer Code: 0020h – Device Code, M29F400T: 00D5h – Device Code, M29F400B: 00D6h DESCRIPTION The M29F400 is a non-volatile memory that may be erased electrically at the block or chip level and programmed in-system on a Byte-by-Byte or Wordby-Word basis using only a single 5V V CC supply.
For Program and Erase operations the necessary high voltages are generated internally.
The device can also be programmed in standard programmers.
The array matrix organisation allows each block to be erased and reprogrammed without affecting other blocks.
Blocks can be protected against proNovember 1999 44 1 TSOP48 (N) 12 x 20 mm SO44 (M) Figure 1.
Logic Diagram VCC 18 A0-A17 W E G RP M29F400T M29F400B 15 DQ0-DQ14 DQ15A–1 BYTE RB VSS AI01726B 1/34 This is information on a product stil l in production but not recommended for new designs.
M29F400T, M29F400B Figure 2A.
TSOP Pin Connections A15 A14 A13 A12 A11 A10 A9 A8 NC NC W RP NC NC RB NC A17 A7 A6 A5 A4 A3 A2 A1 1 48 A16 BYTE VSS DQ15A–1 DQ7 DQ14 DQ6 DQ13 DQ5 DQ12 DQ4 VCC DQ11 DQ3 DQ10 DQ2 DQ9 DQ1 DQ8 DQ0 G VSS E A0 Figure 2B.
TSOP Reverse Pin Connections A1...


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