Features

– 100 µA Max Standby

– 40 mA Max Active at 5 MHz

– 32-lead PLCC

– 32-lead PDIP

– 32-lead TSOP

± 10% Supply

– 2,000V ESD Protection

– 200 mA Latchup Immunity

1.

Description

The AT27C080 chip is a low-power, high-performance 8,388,608-bit one-time pro-

grammable read only memory (OTP EPROM) organized as 1M by 8 bits. The

AT27C080 requires only one 5V power supply in normal read mode operation. Any

byte can be accessed in less than 90 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 10 mA in active mode and less than

10 µA in standby mode.

The AT27C080 is available in a choice of packages, including; one-time programma-

ble (OTP) plastic PLCC, PDIP and TSOP. All devices feature two-line control (CE,

OE) to give designers the flexibility to prevent bus contention.

With high density 1-Mbyte storage capability, the AT27C080 allows firmware to be

stored reliably and to be accessed by the system without the delays of mass storage

media.

Atmel’s AT27C080 has additional features to ensure high quality and efficient produc-

tion use. The Rapid Programming Algorithm reduces the time required to program the

part and guarantees reliable programming. Programming time is typically only

50 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.

8-Megabit

(1M x 8) OTP

EPROM

AT27C080

0360L–EPROM–12/07