Datasheet > AT29C432

AT29C432

更新时间： 2024-11-23 22:53:59

品牌	Logo	应用领域
爱特美尔 - ATMEL		闪存存储可编程只读存储器
页数	文件大小	规格书
11页	317K
描述
4 Megabit 5-volt Flash with 256K E2PROM Memory

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数据手册

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AT29C432 数据手册

Features

ConcurrentFlash Memory

•

Unique Architecture Allows the Flash Array

To Be Read During the E²PROM Write Cycle

4 Megabit 5-volt Flash

•

Configured as a 512K x 8 Memory Array

120 ns Read Access Time

Sector Program Operation

Single Cycle Reprogram (No Erase Necessary)

2048 Sectors, 256-Bytes Wide

10 ms Sector Rewrite

4 Megabit

JEDEC Standard Software Data Protection

256K bit Full Feature E²PROM

•

5-volt Flash with

256K E²PROM

Memory

Configured as a 32K x 8 Memory Array

Byte or Page (16 bytes) Write Capability

Write Cycle Time: 10 ms

JEDEC Standard Software Data Protection

Pinout Similar to 32-Pin 4 Mb Flash

Data Memory Endurance: 10,000 cycles

•

Description

AT29C432

ConcurrentFlash

The AT29C432 is a CMOS memory specifically designed for applications requiring

both a high density nonvolatile program memory and a smaller nonvolatile data mem-

ory. The AT29C432 provides this in the form of a 4 megabit Flash array integrated

with a 256K bit full featured E PROM array on the same device. A unique feature of

this device is its concurrent read while writing capability. This provides the host sys-

tem read access to the Flash program memory during the write cycle time of the

E PROM.

Preliminary

The two memory arrays share all I/O lines, Address lines and OE and WE inputs.

Each memory array has its own Chip Enable input: CEF for the Flash array and CEE

for the E PROM array.

Additionally, Software Data Protection has been independently implemented for both

arrays and is always enabled. The AT29C432 has a pinout similar to the AT29C040A

Flash memory. A system designer using a Flash memory for program storage and

another smaller, non volatile memory for data storage can easily replace both memo-

ries with the AT29C432.

TSOP

Type 1

Pin Configurations

Pin Name Function

A0 - A18

Addresses

Output Enable

Write Enable

I/O0 - I/O7 Data Inputs/Outputs

CEE

CEF

Chip Enable E²PROM

Chip Enable Flash

No Connect

12 3 4 5 6 7...11

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与AT29C432相关器件

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AT29C432-12	ATMEL	获取价格	4 Megabit 5-volt Flash with 256K E2PROM Memory
AT29C432-12TC	ATMEL	获取价格	4 Megabit 5-volt Flash with 256K E2PROM Memory
AT29C432-12TI	ATMEL	获取价格	4 Megabit 5-volt Flash with 256K E2PROM Memory
AT29C432-15	ATMEL	获取价格	4 Megabit 5-volt Flash with 256K E2PROM Memory
AT29C432-15TC	ATMEL	获取价格	4 Megabit 5-volt Flash with 256K E2PROM Memory
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