Datasheet > IDT7281L12PAI

IDT7281L12PAI

更新时间： 2024-09-15 22:23:47

品牌	Logo	应用领域
艾迪悌 - IDT		先进先出芯片
页数	文件大小	规格书
12页	153K
描述
CMOS DUAL ASYNCHRONOUS FIFO DUAL 256 x 9, DUAL 512 x 9,DUAL 1,024 x 9, DUAL 2,048 x 9,DUAL 4,096 x 9, DUAL 8,192 x 9

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IDT7281L12PAI 数据手册

IDT7280

IDT7281

IDT7282

IDT7283

IDT7284

IDT7285

CMOS DUAL ASYNCHRONOUS FIFO

DUAL 256 x 9, DUAL 512 x 9,

DUAL 1,024 x 9, DUAL 2,048 x 9,

DUAL 4,096 x 9, DUAL 8,192 x 9

DESCRIPTION:

FEATURES:

The IDT7280/7281/7282/7283/7284/7285 are dual-FIFO memories that

loadandemptydataonafirst-in/first-outbasis.Thesedevicesarefunctional

andcompatibletotwoIDT7200/7201/7202/7203/7204/7205FIFOsinasingle

packagewithallassociatedcontrol,data,andflaglinesassignedtoseparate

pins. The devices use Full and Empty flags to prevent data overflow and

underflowandexpansionlogictoallowforunlimitedexpansioncapabilityinboth

word size and depth.

•

The IDT7280 is equivalent to two IDT7200 256 x 9 FIFOs

The IDT7281 is equivalent to two IDT7201 512 x 9 FIFOs

The IDT7282 is equivalent to two IDT7202 1,024 x 9 FIFOs

The IDT7283 is equivalent to two IDT7203 2,048 x 9 FIFOs

The IDT7284 is equivalent to two IDT7204 4,096 x 9 FIFOs

The IDT7285 is equivalent to two IDT7205 8,192 x 9 FIFOs

Low power consumption

Thereadsandwritesareinternallysequentialthroughtheuseofringpointers,

withnoaddressinformationrequiredtoloadandunloaddata.Dataistoggled

inandoutofthedevices throughtheuseoftheWrite(W)andRead(R)pins.

Thedevicesutilizea9-bitwidedataarraytoallowforcontrolandparitybits

attheuser’soption.Thisfeatureis especiallyusefulindatacommunications

applicationswhereitisnecessarytouseaparitybitfortransmission/reception

errorchecking.ItalsofeaturesaRetransmit(RT)capabilitythatallowsforreset

of the read pointer to its initial position when RT is pulsed LOW to allow for

retransmissionfromthebeginningofdata.AHalf-FullFlagisavailableinthe

singledevicemodeandwidthexpansionmodes.

— Active: 685 mW (max.)

— Power-down: 83 mW (max.)

Ultra high speed—12 ns access time

Asynchronous and simultaneous read and write

Offers optimal combination of data capacity, small foot print

and functional flexibility

Ideal for bi-directional, width expansion, depth expansion,

bus-matching, and data sorting applications

Status Flags: Empty, Half-Full, Full

Auto-retransmit capability

High-performance CMOS technology

Space-saving TSSOP

Industrial temperature range (–40°C to +85°C) is available

•

These FIFOs are fabricated using IDT’s high-speed CMOS technology.

Theyaredesignedforthoseapplicationsrequiringasynchronousandsimul-

taneousread/writesinmultiprocessingandratebufferapplications.

FUNCTIONAL BLOCK DIAGRAM

DATA INPUTS

(DA0-DA8)

(DB0-DB8)

RSA

RSB

WRITE

CONTROL

WRITE

CONTROL

RAM

ARRAY A

256 x 9

ARRAY B

256 x 9

512 x 9

1,024 x 9

2,048 x 9

4,096 x 9

8,192 x 9

1,024 x 9

2,048 x 9

4,096 x 9

8,192 x 9

WRITE

POINTER

WRITE

POINTER

READ

POINTER

READ

POINTER

THREE-

STATE

BUFFERS

THREE-

STATE

BUFFERS

READ

CONTROL

READ

CONTROL

RESET

LOGIC

RESET

LOGIC

FLAG

LOGIC

FLAG

LOGIC

EXPANSION

LOGIC

EXPANSION

LOGIC

XIA

FFA EFA

XIB

XOA/HFA

FLA/RTA

FFB EFB

FLB/RTB

DATA

OUTPUTS

(QA0-QA8)

XOB/HFB

DATA

OUTPUTS

(QB0-QB8)

3208 drw 01

IDTandtheIDTlogoareregisteredtrademarksofIntegratedDeviceTechnology,Inc

COMMERCIALANDINDUSTRIALTEMPERATURERANGES

SEPTEMBER 2002

DSC-3208/5

12 3 4 5 6 7...12

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与IDT7281L12PAI相关器件

型号	品牌	获取价格	描述	数据表
IDT7281L12SO	IDT	获取价格	FIFO, 512X9, 12ns, Asynchronous, CMOS, PDSO28, SOIC-28
IDT7281L12TP	IDT	获取价格	FIFO, 512X9, 12ns, Asynchronous, CMOS, PDIP28, PLASTIC, DIP-28
IDT7281L15	IDT	获取价格	CMOS DUAL ASYNCHRONOUS FIFO DUAL 256 x 9, DUAL 512 x 9,DUAL 1,024 x 9, DUAL 2,048 x 9,DUAL
IDT7281L15JI	IDT	获取价格	FIFO, 512X9, 15ns, Asynchronous, CMOS, PQCC32, PLASTIC, LCC-32
IDT7281L15PA	IDT	获取价格	CMOS DUAL ASYNCHRONOUS FIFO DUAL 256 x 9, DUAL 512 x 9,DUAL 1,024 x 9, DUAL 2,048 x 9,DUAL
IDT7281L15PA8	IDT	获取价格	FIFO, 512X9, 15ns, Asynchronous, CMOS, PDSO56, TSSOP-56
IDT7281L15PAG8	IDT	获取价格	FIFO, 512X9, 15ns, Asynchronous, CMOS, PDSO56, TSSOP-56
IDT7281L15PAGI8	IDT	获取价格	暂无描述
IDT7281L15PAI	IDT	获取价格	CMOS DUAL ASYNCHRONOUS FIFO DUAL 256 x 9, DUAL 512 x 9,DUAL 1,024 x 9, DUAL 2,048 x 9,DUAL
IDT7281L15PAI8	IDT	获取价格	FIFO, 512X9, 15ns, Asynchronous, CMOS, PDSO56, TSSOP-56

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