IDT70V657S10BF datasheet(2/24 Pages) IDT

Part #	IDT70V657S10BF

Description	HIGH-SPEED 3.3V 128/64/32K x 36 ASYNCHRONOUS DUAL-PORT STATIC RAM

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Manufacturer	IDT [Integrated Device Technology]

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IDT70V659/58/57S

High-Speed 3.3V 128/64/32K x 36 Asynchronous Dual-Port Static RAM

Industrial and Commercial Temperature Ranges

2

Description

The IDT70V659/58/57 is a high-speed 128/64/32K x 36 Asynchro-

nousDual-PortStaticRAM.TheIDT70V659/58/57isdesignedtobeused

asastand-alone4/2/1MbitDual-PortRAMorasacombinationMASTER/

SLAVE Dual-Port RAM for 72-bit-or-more word system. Using the IDT

MASTER/SLAVE Dual-Port RAM approach in 72-bit or wider memory

systemapplicationsresultsinfull-speed,error-freeoperationwithoutthe

needforadditionaldiscretelogic.

This device provides two independent ports with separate control,

address,andI/Opinsthatpermitindependent,asynchronousaccessfor

reads or writes to any location in memory. An automatic power down

feature controlled by the chip enables (either CE0 or CE1) permit the

on-chip circuitry of each port to enter a very low standby power mode.

The 70V659/58/57 can support an operating voltage of either 3.3V

or2.5Vononeorbothports,controlledbytheOPTpins.Thepowersupply

for the core of the device (VDD) remains at 3.3V.

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