1

PLCC, Top View

Features

– Unregulated Battery Power Supply Range, 2.7V to 3.6V

or Standard 5V

± 10% Supply Range

–20

µA max. (less than 1 µA typical) Standby for V

– 29 mW max. Active at 5 MHz for V

– 32-Lead PLCC

– 32-Lead TSOP (8 x 20mm)

– 32-Lead VSOP (8 x 14mm)

– 42-Ball CBGA (8 x 8mm)

– 2,000V ESD Protection

– 200 mA Latchup Immunity

µs/byte (typical)

– JEDEC Standard for LVTTL and LVBO

Description

The AT27BV020 is a high-performance, low-power, low-voltage 2,097,152-bit one-

time programmable read only memory (OTP EPROM) organized as 256K by 8 bits. It

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

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

power.

AT27BV020

2-Megabit

(256K x 8)

Unregulated

High Speed

OTP EPROM

AT27BV020

TSOP, VSOP Top View

Type 1

0902A-A–10/97

Pin Configurations

Pin Name

Function

A0 - A17

Address

O0 - O7

Outputs

CE

Chip Enable

OE

Output Enable

PGM

Program Strobe

(continued)

CBGA Top View

A

B

C

D

E

F

1

234567

GND

A17

A10

A14

A16

A15

O6

O7

NC

A13

A11

A12

VCC

O4

O5

A9

PGM

A8

VCC

NC

NC

NC

NC

NC

O2

NC

O3

NC

A7

VPP

OE

O0

O1

A6

A4

A5

GND

CE

A0

A3

A1

A2