29F040 datasheet(1/31 Pages) STMICROELECTRONICS

Part #	29F040

Description	4 Mbit 512Kb x8, Uniform Block Single Supply Flash Memory

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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AI01372

19

A0-A18

W

DQ0-DQ7

VCC

M29F040

G

E

VSS

8

Figure 1. Logic Diagram

M29F040

4 Mbit (512Kb x8, Uniform Block) Single Supply Flash Memory

NOT FOR NEW DESIGN

M29F040 is replaced by the M29F040B

5V

± 10% SUPPLY VOLTAGE for PROGRAM,

ERASE and READ OPERATIONS

FAST ACCESS TIME: 70ns

BYTE PROGRAMMING TIME: 10

µs typical

ERASE TIME

– Block: 1.0 sec typical

– Chip: 2.5 sec typical

PROGRAM/ERASE CONTROLLER (P/E.C.)

– Program Byte-by-Byte

– Data Polling and Toggle bits Protocol for

P/E.C. Status

MEMORY ERASE in BLOCKS

– 8 Uniform Blocks of 64 KBytes each

– Block Protection

– Multiblock Erase

ERASE SUSPEND and RESUME MODES

LOW POWER CONSUMPTION

– Read mode: 8mA typical (at 12MHz)

– Stand-by mode: 25

µA typical

– Automatic Stand-by mode

100,000 PROGRAM/ERASE CYCLES per

BLOCK

20 YEARS DATA RETENTION

– Defectivity below 1ppm/year

ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Device Code: E2h

A0-A18

Address Inputs

DQ0-DQ7

Data Input / Outputs

E

Chip Enable

G

Output Enable

W

Write Enable

VCC

Supply Voltage

VSS

Ground

Table 1. Signal Names

PLCC32 (K)

TSOP32 (N)

8 x 20 mm

November 1999

1/31

This is information on a product still in production but not recommended for new designs.

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