Datasheet > AT27C020-55PJ

AT27C020-55PJ

更新时间： 2022-12-01 19:48:56

品牌	Logo	应用领域
美国微芯 - MICROCHIP		OTP只读存储器光电二极管
页数	文件大小	规格书
14页	359K
描述
OTP ROM, 256KX8, 55ns, CMOS, PDIP32

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AT27C020-55PJ 数据手册

Features

• Fast Read Access Time – 55 ns

• Low-power CMOS Operation

– 100 µA Max Standby

– 25 mA Max Active at 5 MHz

• JEDEC Standard Packages

– 32-lead PDIP

– 32-lead PLCC

– 32-lead TSOP

2-megabit

(256K x 8)

OTP EPROM

• 5V ± ± 10% Supply

• High-reliability CMOS Technology

– 2,000V ESD Protection

– 200 mA Latch-up Immunity

• Rapid Programming Algorithm – 100 µs/Byte (Typical)

• CMOS- and TTL-compatible Inputs and Outputs

• Integrated Product Identification Code

• Industrial and Automotive Temperature Ranges

• Green (Pb/Halide-free) Packaging Option

AT27C020

1. Description

The AT27C020 is a low-power, high-performance, 2,097,152-bit, one-time program-

mable read-only memory (OTP EPROM) organized as 256K by 8 bits. It requires only

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

in less than 55 ns, eliminating the need for speed-reducing WAIT states on high-

performance microprocessor systems.

In read mode, the AT27C020 typically consumes 8 mA. Standby mode supply current

is typically less than 10 µA.

The AT27C020 is available in a choice of industry-standard JEDEC-approved one-

time programmable (OTP) plastic PDIP, PLCC and TSOP packages. All devices fea-

ture two-line control (CE, OE) to give designers the flexibility to prevent bus

contention.

With 256K bytes storage capability, the AT27C020 allows firmware to be stored reli-

ably and to be accessed by the system without the delays of mass storage media.

Atmel’s AT27C020 has additional features to ensure high quality and efficient produc-

tion use. The RapidProgramming Algorithm reduces the time required to program the

part and guarantees reliable programming. Programming time is typically only

100 µs/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.

0570G–EPROM–12/07

12 3 4 5 6 7...14

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型号	品牌	描述	获取价格	数据表
AT27C020-55PU	MICROCHIP	IC OTP 2MBIT 55NS 32DIP	获取价格
AT27C020-55PU	ATMEL	2-megabit (256K x 8) OTP EPROM	获取价格
AT27C020-55TC	ATMEL	2-Megabit 256K x 8 OTP EPROM	获取价格
AT27C020-55TI	ATMEL	2-Megabit 256K x 8 OTP EPROM	获取价格
AT27C020-55TJ	MICROCHIP	OTP ROM, 256KX8, 55ns, CMOS, PDSO32, 8 X 20 MM, PLASTIC, MO-142BD, TSOP1-32	获取价格
AT27C020-55TU	ATMEL	2-megabit (256K x 8) OTP EPROM	获取价格