Datasheet > AT49F040T-12PC

AT49F040T-12PC

更新时间： 2024-11-07 23:00:35

品牌	Logo	应用领域
爱特美尔 - ATMEL		闪存
页数	文件大小	规格书
12页	232K
描述
4-Megabit 512K x 8 5-volt Only CMOS Flash Memory

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中文翻译

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数据手册

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AT49F040T-12PC 数据手册

Features

• Single Voltage Operation

– 5V Read

– 5V Reprogramming

• Fast Read Access Time - 70 ns

• Internal Program Control and Timer

• 16K bytes Boot Block With Lockout

• Fast Erase Cycle Time - 10 seconds

• Byte By Byte Programming - 50 µs/Byte

• Hardware Data Protection

• DATA Polling For End Of Program Detection

• Low Power Dissipation

– 50 mA Active Current

– 100 µA CMOS Standby Current

• Typical 10,000 Write Cycles

4-Megabit

(512K x 8)

5-volt Only

CMOS

Description

The AT49F040 is a 5-volt-only in-system Flash Memory. Its 4 megabits of memory is

organized as 524,288 words by 8 bits. Manufactured with Atmel’s advanced nonvola-

tile CMOS technology, the device offers access times to 70 ns with power dissipation

of just 275 mW over the commercial temperature range. When the device is dese-

lected, the CMOS standby current is less than 100 µA.

Flash Memory

AT49F040

AT49F040T

AT49F040/040T

The device contains a user-enabled “boot block” protection feature. Two versions of

the feature are available: the AT49F040 locates the boot block at lowest order

addresses (“bottom boot”); the AT49F040T locates it at highest order addresses (“top

boot”).

(continued)

DIP Top View

Pin Configurations

Pin Name Function

A0 - A18

Addresses

Chip Enable

Output Enable

Write Enable

AT49F040/040T

I/O0 - I/O7 Data Inputs/Outputs

PLCC Top View

TSOP Top View

Type 1

Rev. 0998A-A–01/98

12 3 4 5 6 7...12

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