©1999 Integrated Device Technology, Inc.

JUNE 1999

DSC 2674/9

1

IDT7052S/L

Functional Block Diagram

HIGH-SPEED

STATIC RAM

Features

x

x

x

x

x

High-speed access

– Military: 25/35ns (max.)

– Commercial: 20/25/35ns (max.)

x

x

x

x

x

Low-power operation

– IDT7052S

Active: 750mW (typ.)

Standby: 7.5mW (typ.)

– IDT7052L

Active: 750mW (typ.)

Standby: 1.5mW (typ.)

x

x

x

x

x

True FourPort memory cells which allow simultaneous

access of the same memory locations

x

x

x

x

x

Fully asynchronous operation from each of the four ports:

P1, P2, P3, P4

x

x

x

x

x

Versatile control for write-inhibit: separate

BUSY input to

control write-inhibit for each of the four ports

x

x

x

x

x

Battery backup operation—2V data retention

MEMORY

ARRAY

COLUMN

I/O

PORT 1

ADDRESS

DECODE

LOGIC

PORT 2

ADDRESS

DECODE

LOGIC

COLUMN

I/O

COLUMN

I/O

PORT 4

ADDRESS

DECODE

LOGIC

PORT 3

ADDRESS

DECODE

LOGIC

COLUMN

I/O

R/

R/

2674 drw 01

R/

R/

x

x

x

x

x

TTL-compatible; single 5V (±10%) power supply

x

x

x

x

x

Available in 120 pin and 132 pin Thin Quad Flatpacks and

108 pin PGA

x

x

x

x

x

Military product compliant to MIL-PRF-38535 QML

x

x

x

x

x

Industrial temperature range (–40°C to +85°C) is available

for selected speeds

Description

The IDT7052 is a high-speed 2K x 8 FourPort™ Static RAM designed

to be used in systems where multiple access into a common RAM is

required.ThisFourPortStaticRAMoffersincreasedsystemperformance

inmultiprocessorsystemsthathaveaneedtocommunicateinrealtimeand

alsooffersaddedbenefitforhigh-speedsystemsinwhichmultipleaccess

is required in the same cycle.

The IDT7052 is also designed to be used in systems where on-chip

hardware port arbitration is not needed. This part lends itself to those