Datasheet > AM29F400AT-90SI

AM29F400AT-90SI

更新时间： 2024-11-04 05:26:35

品牌	Logo	应用领域
超微 - AMD		闪存
页数	文件大小	规格书
35页	140K
描述
4 Megabit (524,288 x 8-Bit/262,144 x 16-Bit) CMOS 5.0 Volt-only, Sector Erase Flash Memory

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AM29F400AT-90SI 数据手册

PRELIMINARY

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

■ 5.0 V ± 10% for read and write operations

■ Embedded Program Algorithms

— Minimizes system level power requirements

— Automatically programs and veriﬁes data at

speciﬁed address

■ Compatible with JEDEC-standards

■ Data Polling andToggle Bit feature for detection

— Pinout and software compatible with

single-power-supply ﬂash

of program or erase cycle completion

■ Ready/Busy output (RY/BY)

— Superior inadvertent write protection

— Hardware method for detection of program or

erase cycle completion

■ Package options

— 44-pin SO

■ Erase Suspend/Resume

— 48-pin TSOP

— Supports reading data from a sector not being

erased

■ Minimum 100,000 write/erase cycles guaranteed

■ High performance

■ Low power consumption

— 60 ns maximum access time

— 20 mA typical active read current for Byte Mode

— 28 mA typical active read current for Word Mode

— 30 mA typical program/erase current

■ Sector erase architecture

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

seven 64 Kbytes

■ Enhanced power management for standby

— Any combination of sectors can be erased. Also

supports full chip erase.

mode

— 1 µA typical standby current

■ Sector protection

■ Boot Code Sector Architecture

— T = Top sector

— Hardware method that disables any combination

of sectors from write or erase operations.

Implemented using standard PROM

programming equipment.

— B = Bottom sector

■ Hardware RESET pin

■ Embedded Erase Algorithms

— Resets internal state machine to the read mode

— Automatically preprograms and erases the chip

or any sector

GENERAL DESCRIPTION

The Am29F400A is a 4 Mbit, 5.0Volt-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

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.

5.0 Volt V

supply. 12.0 Volt V is not required for

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.

Publication# 20380 Rev: B Amendment/0

Issue Date: April 1997

12 3 4 5 6 7...35

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与AM29F400AT-90SI相关器件

型号	品牌	获取价格	描述	数据表
AM29F400AT-90SIB	AMD	获取价格	4 Megabit (524,288 x 8-Bit/262,144 x 16-Bit) CMOS 5.0 Volt-only, Sector Erase Flash Memory
AM29F400B	AMD	获取价格	4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
AM29F400B_00	AMD	获取价格	4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
AM29F400B_03	AMD	获取价格	4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory-Die
AM29F400B_06	AMD	获取价格	4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
AM29F400B_09	SPANSION	获取价格	4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
AM29F400B-1	AMD	获取价格	4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory-Die
AM29F400B-120EC	ETC	获取价格	x8/x16 Flash EEPROM
AM29F400B-120EE	ETC	获取价格	x8/x16 Flash EEPROM
AM29F400B-120EEB	ETC	获取价格	x8/x16 Flash EEPROM

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