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What is 29F400T?

This electronic component, produced by the manufacturer "STMicroelectronics", performs the same function as "M29F400T".


29F400T Datasheet PDF - STMicroelectronics

Part Number 29F400T
Description M29F400T
Manufacturers STMicroelectronics 
Logo STMicroelectronics Logo 


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M29F400T
M29F400B
4 Mbit (512Kb x8 or 256Kb x16, Boot Block)
Single Supply Flash Memory
M29F400T and M29F400B are replaced
respectively by the M29F400BT and
M29F400BB
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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 Word-
by-Word basis using only a single 5V VCC supply.
For Program and Erase operations the necessary
high voltages are generated internally. The device
can also be programmed in standard program-
mers.
The array matrix organisation allows each block to
be erased and reprogrammed without affecting
other blocks. Blocks can be protected against pro-
NOT FOR NEW DESIGN
TSOP48 (N)
12 x 20 mm
44
1
SO44 (M)
Figure 1. Logic Diagram
VCC
18
A0-A17
15
DQ0-DQ14
W DQ15A–1
E
M29F400T
M29F400B
BYTE
G RB
RP
VSS
AI01726B
November 1999
This is information on a product stil l in production but not recommended for new designs.
1/34

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29F400T equivalent
M29F400T, M29F400B
Table 3A. M29F400T Block Address Table
Address Range (x8) Address Range (x16) A17 A16 A15 A14 A13 A12
00000h-0FFFFh
00000h-07FFFh
0 0 0XXX
10000h-1FFFFh
08000h-0FFFFh
0 0 1XXX
20000h-2FFFFh
10000h-17FFFh
0 1 0XXX
30000h-3FFFFh
18000h-1FFFFh
0 1 1XXX
40000h-4FFFFh
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50000h-5FFFFh
20000h-27FFFh
28000h-2FFFFh
1 0 0XXX
1 0 1XXX
60000h-6FFFFh
30000h-37FFFh
1 1 0XXX
70000h-77FFFh
38000h-3BFFFh 1 1 1 0 X X
78000h-79FFFh 3C000h-3CFFFh 1 1 1 1 0 0
7A000h-7BFFFh 3D000h-3DFFFh 1 1 1 1 0 1
7C000h-7FFFFh 3E000h-3FFFFh 1 1 1 1 1 X
Table 3B. M29F400B Block Address Table
Address Range (x8) Address Range (x16) A17 A16 A15 A14 A13 A12
00000h-03FFFh
00000h-01FFFh 0 0 0 0 0 X
04000h-05FFFh
02000h-02FFFh 0 0 0 0 1 0
06000h-07FFFh
03000h-03FFFh 0 0 0 0 1 1
08000h-0FFFFh
04000h-07FFFh 0 0 0 1 X X
10000h-1FFFFh
08000h-0FFFFh
0 0 1XXX
20000h-2FFFFh
10000h-17FFFh
0 1 0XXX
30000h-3FFFFh
18000h-1FFFFh
0 1 1XXX
40000h-4FFFFh
20000h-27FFFh
1 0 0XXX
50000h-5FFFFh
28000h-2FFFFh
1 0 1XXX
60000h-6FFFFh
30000h-37FFFh
1 1 0XXX
70000h-7FFFFh
38000h-3FFFFh
1 1 1XXX
5/34


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