Datasheet > 存储 > SRAM> IDT71V547S85PF

IDT71V547S85PF

更新时间： 2024-09-17 22:15:31

品牌	Logo	应用领域
艾迪悌 - IDT		计数器静态存储器
页数	文件大小	规格书
19页	164K
描述
128K X 36, 3.3V Synchronous SRAM with ZBT Feature, Burst Counter and Flow-Through Outputs

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IDT71V547S85PF 数据手册

128K X 36, 3.3V Synchronous

IDT71V547

SRAM with ZBT™ Feature, Burst

Counter and Flow-Through Outputs

Features

◆

128K x 36 memory configuration, flow-through outputs

TheIDT71V547containsaddress,data-inandcontrolsignalregisters.

Theoutputsareflow-through(nooutputdataregister).Outputenableis

theonlyasynchronoussignalandcanbeusedtodisabletheoutputsat

anygiventime.

◆

Supports high performance system speed - 95 MHz

(8ns Clock-to-Data Access)

ZBT^TMFeature - No dead cycles between write and read

◆

cycles

A Clock Enable (CEN) pin allows operation of the IDT71V547 to

be suspended as long as necessary. All synchronous inputs are

ignored when CENis high and the internal device registers will hold

their previous values.

Therearethreechipenablepins(CE1,CE2,CE2)thatallowtheuser

todeselectthedevicewhendesired. Ifanyoneofthesethreeisnotactive

whenADV/LDislow,nonewmemoryoperationcanbeinitiatedandany

burstinprogressisstopped.However,anypendingdatatransfers(reads

orwrites)willbecompleted.Thedatabuswilltri-stateonecycleafterthe

chipwasdeselectedorwriteinitiated.

◆

Internally synchronized signal eliminates the need to

control OE

Single R/W (READ/WRITE) control pin

4-word burst capability (Interleaved or linear)

Individual byte write (BW1 - BW4) control (May tie active)

Three chip enables for simple depth expansion

Single 3.3V power supply (±5%)

Packaged in a JEDEC standard 100-pin TQFP package

◆

TheIDT71V547hasanon-chipburstcounter. Intheburstmode,the

IDT71V547canprovidefourcyclesofdataforasingleaddresspresented

totheSRAM.TheorderoftheburstsequenceisdefinedbytheLBOinput

pin. TheLBOpinselectsbetweenlinearandinterleavedburstsequence.

The ADV/LDsignalis usedtoloada newexternaladdress (ADV/LD=

LOW)orincrementtheinternalburstcounter(ADV/LD=HIGH).

TheIDT71V547SRAMutilizesIDT'shigh-performance,high-volume

3.3V CMOS process, and is packaged in a JEDEC Standard 14mm x

20mm100-pinthinplasticquadflatpack(TQFP)forhighboarddensity.

Description

The IDT71V547 is a 3.3V high-speed 4,718,592-bit (4.5 Megabit)

synchronousSRAMorganizedas128Kx36bits. Itisdesignedtoeliminate

deadbuscycleswhenturningthebusaroundbetweenreadsandwrites,

orwritesandreads.ThusithasbeengiventhenameZBT^TM,orZeroBus

Turn-around.

AddressandcontrolsignalsareappliedtotheSRAMduringoneclock

cycle,andonthenextclockcycle,itsassociateddatacycleoccurs,beit

read or write.

PinDescriptionSummary

A - A

Address Inputs

Input

I/O

Synchronous

Asynchronous

Synchronous

N/A

Three Chip Enables

Output Enable

CE , CE , CE

R/W

Read/Write Signal

Clock Enable

CEN

Individual Byte Write Selects

Clock

BW , BW , BW , BW

CLK

ADV/LD

Advance Burst Address / Load New Address

Linear / Interleaved Burst Order

Data Input/Output

3.3V Power

Synchronous

Static

LBO

I/O - I/O , I/O -

Synchronous

Static

I/O

Supply

Ground

Static

3822 tbl 01

ZBT and Zero Bus Turnaround are trademarks of Integrated Device Technology, Inc. and the architecture is supported by Micron Technology and Motorola Inc.

DECEMBER 1999

DSC-3822/03

12 3 4 5 6 7...19

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与IDT71V547S85PF相关器件

型号	品牌	获取价格	描述	数据表
IDT71V547S85PF8	IDT	获取价格	ZBT SRAM, 128KX36, 8.5ns, CMOS, PQFP100, 14 X 20 MM, PLASTIC, TQFP-100
IDT71V547S85PF9	IDT	获取价格	ZBT SRAM, 128KX36, 8.5ns, CMOS, PQFP100, 14 X 20 MM, PLASTIC, TQFP-100
IDT71V547S85PFG	IDT	获取价格	ZBT SRAM, 128KX36, 8.5ns, CMOS, PQFP100, 14 X 20 MM, PLASTIC, TQFP-100
IDT71V547S85PFGI8	IDT	获取价格	ZBT SRAM, 128KX36, 8.5ns, CMOS, PQFP100, 14 X 20 MM, PLASTIC, TQFP-100
IDT71V547S85PFI	IDT	获取价格	128K X 36, 3.3V Synchronous SRAM with ZBT Feature, Burst Counter and Flow-Through Outputs
IDT71V547S85PFI8	IDT	获取价格	ZBT SRAM, 128KX36, 8.5ns, CMOS, PQFP100, 14 X 20 MM, PLASTIC, TQFP-100
IDT71V547S85PFI9	IDT	获取价格	ZBT SRAM, 128KX36, 8.5ns, CMOS, PQFP100, 14 X 20 MM, PLASTIC, TQFP-100
IDT71V547S85PFIG	IDT	获取价格	ZBT SRAM, 128KX36, 8.5ns, CMOS, PQFP100, 14 X 20 MM, PLASTIC, TQFP-100
IDT71V547S90PF	IDT	获取价格	128K X 36, 3.3V Synchronous SRAM with ZBT Feature, Burst Counter and Flow-Through Outputs
IDT71V547S90PF8	IDT	获取价格	ZBT SRAM, 128KX36, 9ns, CMOS, PQFP100, 14 X 20 MM, PLASTIC, TQFP-100

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