UTRON

UT62L1024

Rev. 1.7

128K X 8 BIT LOW POWER CMOS SRAM

UTRON TECHNOLOGY INC.

P80033

1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.

TEL: 886-3-5777882 FAX: 886-3-5777919

1



FEATURES

Access time : 35/55/70ns (max.)

Low power consumption :

Operating : 40/35/30 mA (typical)

Standby : 2.5

µA (typical) L-version

0.5

µA (typical) LL-version

Power supply range : 2.7V to 3.6V

All inputs and outputs TTL compatible

Fully static operation

Three state outputs

Data retention voltage : 2V (min.)

Package : 32-pin 600 mil PDIP

32-pin 450 mil SOP

32-pin 8x20 mm TSOP-1

32-pin 8x13.4 mm STSOP

GENERAL DESCRIPTION

The UT62L1024 is a 1,048,576-bit low power

CMOS static random access memory organized

as 131,072 words by 8 bits. It is fabricated using

high

performance,

high

reliability

CMOS

technology.

Easy memory expansion is provided by using

two chip enable input.(

1

CE

,CE2) It is

particularly well suited for battery back-up

nonvolatile memory application.

The UT62L1024 operates from a single 2.7V~

3.6V power supply and all inputs and outputs

are fully TTL compatible.

FUNCTIONAL BLOCK DIAGRAM

DECODER

I/O DATA

CIRCUIT

CONTROL

CIRCUIT

2048 × 512

MEMORY

ARRAY

COLUMN I/O

OE

WE

A0-A16

Vcc

Vss

I/O1-I/O8

CE1

CE2