AM29F400AB-70EC Advanced Micro Devices, AM29F400AB-70EC Datasheet

AM29F400AB-70EC

Manufacturer Part Number

AM29F400AB-70EC

Description

Manufacturer

Advanced Micro Devices

Datasheets

1.AM29F400AT-90EE.pdf (35 pages)

2.AM29F400AT-70FC.pdf (35 pages)

Specifications of AM29F400AB-70EC

Case

TSOP48

Date_code

2006+

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

AM29F400AB-70EC

Manufacturer:

AMD

Quantity:

6 100

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Am29F400AT/Am29F400AB

4 Megabit (524,288 x 8-Bit/262,144 x 16-Bit) CMOS 5.0 Volt-only,

Sector Erase Flash Memory

DISTINCTIVE CHARACTERISTICS

GENERAL DESCRIPTION

The Am29F400A is a 4 Mbit, 5.0 Volt-only Flash memory

organized as 512 Kbytes of 8 bits each or 256 Kwords

of 16 bits each. The 4 Mbits of data is divided into 11

sectors of one 16 Kbyte, two 8 Kbyte, one 32 Kbyte,

and seven 64 Kbytes, for ﬂexible erase capability. The

8 bits of data will appear on DQ0–DQ7 or 16 bits on

DQ0–DQ15. The Am29F400A is offered in 44-pin SO

and 48-pin TSOP packages. This device is designed

to be programmed in-system with the standard system

5.0 Volt V

program or erase operations. The device can also be re-

programmed in standard EPROM programmers.

This document contains information on a product under development at Advanced Micro Devices. The information

is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed

product without notice.

5.0 V

— Minimizes system level power requirements

Compatible with JEDEC-standards

— Pinout and software compatible with

— Superior inadvertent write protection

Package options

— 44-pin SO

— 48-pin TSOP

Minimum 100,000 write/erase cycles guaranteed

High performance

— 60 ns maximum access time

Sector erase architecture

— One 16 Kbyte, two 8 Kbytes, one 32 Kbyte, and

— Any combination of sectors can be erased. Also

Sector protection

— Hardware method that disables any combination

Embedded Erase

— Automatically preprograms and erases the chip

single-power-supply ﬂash

seven 64 Kbytes

supports full chip erase.

of sectors from write or erase operations.

Implemented using standard PROM

programming equipment.

or any sector

PRELIMINARY

10% for read and write operations

supply. 12.0 Volt V

Algorithms

is not required for

The standard Am29F400A offers access times of

60 ns, 70 ns, 90 ns, 120 ns and 150 ns, allowing high

speed microprocessors to operate without wait states.

To eliminate bus contention the device has sepa-

rate chip enable (CE), write enable (WE) and output

enable (OE) controls.

The Am29F400A is entirely command set compatible

with the JEDEC single-power-supply Flash standard.

Commands are written to the command register using

standard microprocessor write timings. Register con-

tents serve as input to an internal state-machine

which controls the erase and programming circuitry.

Embedded Program

— Automatically programs and veriﬁes data at

Data Polling and Toggle Bit feature for detection

of program or erase cycle completion

Ready/Busy output (RY/BY)

— Hardware method for detection of program or

Erase Suspend/Resume

— Supports reading data from a sector not being

Low power consumption

— 20 mA typical active read current for Byte Mode

— 28 mA typical active read current for Word Mode

— 30 mA typical program/erase current

Enhanced power management for standby

mode

— 1 A typical standby current

Boot Code Sector Architecture

— T = Top sector

— B = Bottom sector

Hardware RESET pin

— Resets internal state machine to the read mode

speciﬁed address

erase cycle completion

erased

Publication# 20380

Issue Date: April 1997

Algorithms

Rev: B Amendment/0

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