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HIGH-SPEED

2K x 8 FourPort

TM

STATIC RAM

Features

x

IDT7052S/L

x

x

x

x

x

High-speed access

鈥?Military: 25/35ns (max.)

鈥?Commercial: 20/25/35ns (max.)

Low-power operation

鈥?IDT7052S

Active: 750mW (typ.)

Standby: 7.5mW (typ.)

鈥?IDT7052L

Active: 750mW (typ.)

Standby: 1.5mW (typ.)

True FourPort memory cells which allow simultaneous

access of the same memory locations

Fully asynchronous operation from each of the four ports:

P1, P2, P3, P4

Versatile control for write-inhibit: separate

BUSY

input to

control write-inhibit for each of the four ports

Battery backup operation鈥?V data retention

x

x

x

x

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

Available in 120 pin and 132 pin Thin Quad Flatpacks and

108 pin PGA

Military product compliant to MIL-PRF-38535 QML

Industrial temperature range (鈥?0擄C to +85擄C) is available

for selected speeds

Description

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

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

required. This FourPort Static RAM offers increased system performance

in multiprocessor systems that have a need to communicate in real time and

also offers added benefit for high-speed systems in which multiple access

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

Functional Block Diagram

R/W

P1

CE

P1

OE

P1

I/O

0P1

-I/O

7P1

BUSY

P1

PORT 1

ADDRESS

DECODE

LOGIC

PORT 2

ADDRESS

DECODE

LOGIC

PORT 4

ADDRESS

DECODE

LOGIC

PORT 3

ADDRESS

DECODE

LOGIC

COLUMN

I/O

COLUMN

I/O

R/W

P4

CE

P4

OE

P4

I/O

0P4

-I/O

7P4

BUSY

P4

A

0P1

- A

10P1

A

0P4

- A

10P4

MEMORY

ARRAY

A

0P2

- A

10P2

A

0P3

- A

10P3

BUSY

P2

I/O

0P2

-I/O

7P2

OE

P2

CE

P2

R/W

P2

COLUMN

I/O

COLUMN

I/O

BUSY

P3

I/O

0P3

-I/O

7P3

OE

P3

CE

P3

R/W

P3

2674 drw 01

JUNE 1999

1

漏1999 Integrated Device Technology, Inc.

DSC 2674/9

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