Integrated Device Technology, Inc.

MILITARY AND COMMERCIAL TEMPERATURE RANGES

OCTOBER 1996

©1996 Integrated Device Technology, Inc.

DSC-2720/4

IDT7134SA/LA

HIGH-SPEED

4K x 8 DUAL-PORT

STATIC RAM

FEATURES:

• High-speed access

— Military: 25/35/45/55/70ns (max.)

— Commercial: 20/25/35/45/55/70ns (max.)

• Low-power operation

— IDT7134SA

Active: 500mW (typ.)

Standby: 5mW (typ.)

— IDT7134LA

Active: 500mW (typ.)

Standby: 1mW (typ.)

• Fully asynchronous operation from either port

• Battery backup operation—2V data retention

• TTL-compatible; single 5V (

±10%) power supply

• Available in several popular hermetic and plastic packages

• Military product compliant to MIL-STD-883, Class B

• Industrial temperature range (–40

°C to +85°C) is available,

tested to military electrical specifications

systems which cannot tolerate wait states or are designed to

be able to externally arbitrate or withstand contention when

both sides simultaneously access the same Dual-Port RAM

location.

The IDT7134 provides two independent ports with separate

control, address, and I/O pins that permit independent,

asynchronous access for reads or writes to any location in

memory. It is the user’s responsibility to ensure data integrity

when simultaneously accessing the same memory location

from both ports. An automatic power down feature, controlled

by

CE, permits the on-chip circuitry of each port to enter a very

low standby power mode.

Fabricated using IDT’s CMOS high-performance

technology, these Dual-Port typically on only 500mW of

power. Low-power (LA) versions offer battery backup data

retention capability, with each port typically consuming 200

µW

from a 2V battery.

The IDT7134 is packaged on either a sidebraze or plastic

48-pin DIP, 48-pin LCC, 52-pin PLCC and 48-pin Ceramic

Flatpack. Military grade product is manufactured in compliance

with the latest revision of MIL-STD-883, Class B, making it

ideally suited to military temperature applications demanding

the highest level of performance and reliability.

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

1

DESCRIPTION:

The IDT7134 is a high-speed 4K x 8 Dual-Port Static RAM

designed to be used in systems where on-chip hardware port

arbitration is not needed.

This part lends itself to those

FUNCTIONAL BLOCK DIAGRAM

For latest information contact IDT’s web site at www.idt.com or fax-on-demand at 408-492-8391.

6.04

COLUMN

I/O

COLUMN

I/O

MEMORY

ARRAY

LEFT SIDE

ADDRESS

DECODE

LOGIC

RIGHT SIDE

ADDRESS

DECODE

LOGIC

R/

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