Datasheet > AT27C040

AT27C040

更新时间： 2023-12-06 20:02:17

品牌	Logo	应用领域
美国微芯 - MICROCHIP		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
13页	542K
描述
The Microchip AT27C040 is a low-power, high-performance, 4-megabit One Time Programmable EPROM or

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AT27C040 数据手册

Atmel AT27C040

4Mb (512K x 8) OTP, EPROM

DATASHEET

Features

 Fast read access time – 70ns

 Low-power CMOS operation

 100μA max standby

 30mA max active at 5MHz

 JEDEC standard packages

 32-lead PDIP

 32-lead PLCC

 5V 10% supply

 High-reliability CMOS technology

 2000V ESD protection

 200mA latchup immunity

 Rapid programming algorithm – 100μs/byte (typical)

 CMOS- and TTL-compatible inputs and outputs

 Industrial temperature range

 Green (Pb/halide-free) packaging option

Description

The Atmel^®AT27C040 is a low-power, high-performance, 4,194,304-bit, One-Time

Programmable, Read-Only Memory (OTP EPROM) organized as 512K by 8 bits. The

AT27C040 requires only one 5V power supply in normal Read mode operation. Any

byte can be accessed in less than 70ns, eliminating the need for speed reducing wait

states on high-performance microprocessor systems.

The Atmel scaled CMOS technology provides low active power consumption and fast

programming. Power consumption is typically 8mA in active mode and less than 10μA

in standby mode.

The AT27C040 is available in a choice of industry standard, JEDEC-approved, PDIP

and PLCC packages. The device features two-line control (CE, OE) to eliminate bus

contention in high-speed systems.

The AT27C040 has additional features to ensure high quality and efficient production

use. The rapid programming algorithm reduces the time required to program the part

and guarantees reliable programming. Programming time is typically only 100μs/byte.

The integrated product identification code electronically identifies the device and

manufacturer. This feature is used by industry standard programming equipment to

select the proper programming algorithms and voltages.

0189J–EPROM–10/2012

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