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M29W400BB fiches techniques PDF

ST Microelectronics - 4 Mbit 512Kb x8 or 256Kb x16 / Boot Block Low Voltage Single Supply Flash Memory

Numéro de référence M29W400BB
Description 4 Mbit 512Kb x8 or 256Kb x16 / Boot Block Low Voltage Single Supply Flash Memory
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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M29W400BB fiche technique
M29W400BT
M29W400BB
4 Mbit (512Kb x8 or 256Kb x16, Boot Block)
Low Voltage Single Supply Flash Memory
s SINGLE 2.7 to 3.6V SUPPLY VOLTAGE for
PROGRAM, ERASE and READ OPERATIONS
s ACCESS TIME: 55ns
s PROGRAMMING TIME
– 10µs per Byte/Word typical
s 11 MEMORY BLOCKS
– 1 Boot Block (Top or Bottom Location)
– 2 Parameter and 8 Main Blocks
s PROGRAM/ERASE CONTROLLER
– Embedded Byte/Word Program algorithm
– Embedded Multi-Block/Chip Erase algorithm
– Status Register Polling and Toggle Bits
– Ready/Busy Output Pin
s ERASE SUSPEND and RESUME MODES
– Read and Program another Block during
Erase Suspend
s UNLOCK BYPASS PROGRAM COMMAND
– Faster Production/Batch Programming
s TEMPORARY BLOCK UNPROTECTION
MODE
s LOW POWER CONSUMPTION
– Standby and Automatic Standby
s 100,000 PROGRAM/ERASE CYCLES per
BLOCK
s 20 YEARS DATA RETENTION
– Defectivity below 1 ppm/year
s ELECTRONIC SIGNATURE
– Manufacturer Code: 0020h
– Top Device Code M29W400BT: 00EEh
– Bottom Device Code M29W400BB: 00EFh
44
TSOP48 (N)
12 x 20mm
1
SO44 (M)
Figure 1. Logic Diagram
VCC
18
A0-A17
15
DQ0-DQ14
W DQ15A–1
M29W400BT
E M29W400BB BYTE
G RB
RP
VSS
AI02934
April 2000
1/22

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