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29F040 Datasheet 4 Mbit 512kb X8 / Uniform Block Single Supply Flash Memory

Manufacturer: STMicroelectronics

Overview: 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: 10µs 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: 25µA 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 Table 1. Signal Names A0-A18 DQ0-DQ7 E G W VCC VSS Address Inputs Data Input / Outputs Chip Enable Output Enable Write Enable Supply Voltage Ground PLCC32 (K) TSOP32 (N) 8 x 20 mm Figure 1. Logic Diagram VCC 19 A0-A18 8 DQ0-DQ7 W E G M29F040 VSS AI01372 November 1999 This is information on a product still in production but not remended for new designs. 1/31 M29F040 Figure 2A. LCC Pin Connections Figure 2B. TSOP Pin Connections 1 32 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 A14 A13 A8 A9 A11 G A10 E DQ7 9 M29F040 25 17 AI01378 A11 A9 A8 A13 A14 A17 W VCC A18 A16 A15 A12 A7 A6 A5 A4 A12 A15 A16 A18 VCC W A17 1 32 8 9 M29F040 (Normal) 25 24 16 17 AI01379 G A10 E DQ7 DQ6 DQ5 DQ4 DQ3 VSS DQ2 DQ1 DQ0 A0 A1 A2 A3 Figure 2C.

General Description

The M29F040 is a non-volatile memory that may be erased electrically at the block level, and programmed Byte-by-Byte.

The interface is directly patible with most microprocessors.

PLCC32 and

Key Features

  • Read Data Polling or Toggle Bit until Program completes. Program Data 5555h AAh 5555h AAh 2AAAh 55h 2AAAh.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Advanced Micro Devices Logo 29F040 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only / Uniform Sector Flash Memory Advanced Micro Devices
AMD Logo 29F040B AM29F040B AMD

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