Datasheet > AT27BV256

AT27BV256

更新时间： 2022-12-13 01:19:26

品牌	Logo	应用领域
爱特美尔 - ATMEL		电池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	257K
描述
256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM

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AT27BV256 数据手册

AT27BV256

Features

Fast Read Access Time - 70 ns

Dual Voltage Range Operation

•

Unregulated Battery Power Supply Range, 2.7V to 3.6V

or Standard 5V ± 10% Supply Range

Pin Compatible with JEDEC Standard AT27C256

Low Power CMOS Operation

•

20 µA max. (less than 1 µA typical) Standby for V_CC= 3.6V

29 mW max. Active at 5 MHz for V_CC= 3.6V

JEDEC Standard Surface Mount Packages

•

256K (32K x 8)

Unregulated

Battery-Voltage

High Speed

OTP

32-Lead PLCC

28-Lead 330-mil SOIC

28-Lead TSOP

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

JEDEC Standard for LVTTL and LVBO

Integrated Product Identification Code

Commercial and Industrial Temperature Ranges

•

CMOS EPROM

Description

The AT27BV256 is a high performance, low power, low voltage 262,144 bit one-time

programmable read only memory (OTP EPROM) organized as 32K by 8 bits. It re-

quires only one supply in the range of 2.7V to 3.6V in normal read mode operation,

making it ideal for fast, portable systems using either regulated or unregulated battery

power.

Atmel’s innovative design techniques provide fast speeds that rival 5V parts while

keeping the low power consumption of a 3V supply. At V = 2.7V, any word can be

accessed in less than 70 ns. With a typical power dissipation of only 18 mW at 5 MHz

and V = 3V, the AT27BV256 consumes less than one fifth the power of a standard

5V EPROM.

AT27BV256

(continued)

SOIC Top View

Pin Configurations

Pin Name

A0 - A14

O0 - O7

Function

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.

0601A

3-3

12 3 4 5 6 7...9

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