Datasheet > 27C256R

27C256R

更新时间： 2024-02-25 02:45:44

品牌	Logo	应用领域
爱特美尔 - ATMEL		可编程只读存储器电动程控只读存储器
页数	文件大小	规格书
9页	254K
描述
256K 32K x 8 OTP CMOS EPROM

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技术参数
数据手册

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27C256R 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.55
Base Number Matches：	1

27C256R 数据手册

AT27C256R

Features

Fast Read Access Time - 45 ns

Low Power CMOS Operation

•

100 µA max. Standby

20 mA max. Active at 5 MHz

JEDEC Standard Packages

•

28-Lead 600-mil PDIP

32-Lead PLCC

28-Lead TSOP and SOIC

5V ± 10% Supply

High Reliability CMOS Technology

2,000V ESD Protection

200 mA Latchup Immunity

Rapid Programming Algorithm - 100 µs/byte (typical)

CMOS and TTL Compatible Inputs and Outputs

•

256K (32K x 8)

OTP

CMOS

•

Integrated Product Identification Code

Commercial and Industrial Temperature Ranges

•

EPROM

•

Description

The AT27C256R is a low-power, high performance 262,144 bit one-time programma-

ble read only memory (OTP EPROM) organized 32K by 8 bits. It requires only one

5V power supply in normal read mode operation. Any byte can be accessed in less

than 45 ns, eliminating the need for speed reducing WAIT states on high performance

microprocessor systems.

Atmel’s scaled CMOS technology provides low active power consumption, and fast

programming. Power consumption is typically only 8 mA in Active Mode and less

than 10 µA in Standby.

(continued)

Pin Configurations

PDIP, SOIC Top View

Pin Name Function

AT27C256R

A0 - A14

O0 - O7

Addresses

Outputs

Chip Enable

Output Enable

No Connect

PLCC Top View

TSOP Top View

Type 1

Note: PLCC Package Pins 1 and

17 are DON’T CONNECT.

0014G

3-125

12 3 4 5 6 7...9

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