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©2015 Integrated Device Technology, Inc.

FEBRUARY 2015

DSC 3241/13

IDT7054S/L

Features

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– Commercial: 20/25/35ns (max.)

– Industrial:25ns(max.)

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– IDT7054S

Active: 750mW (typ.)

Standby: 7.5mW (typ.)

– IDT7054L

Active: 750mW (typ.)

Standby: 1.5mW (typ.)

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access of the same memory locations

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P1, P2, P3, and P4

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for selected speeds

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Description

TheIDT7054isahigh-speed4Kx8FourPort™StaticRAMdesigned

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 IDT7054 is also designed to be used in systems where on-chip

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

systems which cannot tolerate wait states or are designed to be able to

externally arbitrated or withstand contention when all ports simulta-

neously access the same FourPort RAM location.

TheIDT7054providesfourindependentportswithseparatecontrol,

Functional Block Diagram

HIGH-SPEED

STATIC RAM

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

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