Datasheet > IDT72V821L15PFGI

IDT72V821L15PFGI

更新时间： 2024-11-06 10:41:39

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
16页	193K
描述
Bi-Directional FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, GREEN, PLASTIC, TQFP-64

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IDT72V821L15PFGI 数据手册

IDT72V801

IDT72V811

IDT72V821

IDT72V831

IDT72V841

IDT72V851

3.3 VOLT DUAL CMOS SyncFIFO™

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

EachofthetwoFIFOs(designatedFIFOAandFIFOB)containedinthe

IDT72V801/72V811/72V821/72V831/72V841/72V851hasa9-bitinputdata

port (DA0 - DA8, DB0 - DB8) and a 9-bit output data port (QA0 - QA8,

QB0 - QB8).Eachinputportis controlledbya free-runningclock(WCLKA,

WCLKB), and two Write Enable pins (WENA1, WENA2, WENB1, WENB2).

DataiswrittenintoeachofthetwoarraysoneveryrisingclockedgeoftheWrite

Clock (WCLKA, WCLKB) when the appropriate Write Enable pins are

asserted.

TheoutputportofeachFIFObankiscontrolledbyitsassociated clockpin

(RCLKA, RCLKB) and two Read Enable pins (RENA1, RENA2, RENB1,

RENB2).TheReadClockcanbetiedtotheWriteClockforsingleclockoperation

orthetwoclockscanrunasynchronousofoneanotherfordualclockoperation.

AnOutputEnablepin(OEA,OEB)is providedonthereadportofeachFIFO

forthree-stateoutputcontrol.

EachofthetwoFIFOshastwofixedflags,Empty(EFA,EFB)andFull(FFA,

FFB). Twoprogrammableflags,Almost-Empty(PAEA,PAEB)andAlmost-Full

(PAFA,PAFB),areprovidedforeachFIFObanktoimprovememoryutilization.

Ifnotprogrammed,theprogrammableflagsdefaulttoEmpty+7forPAEAand

PAEB, and Full-7 for PAFA and PAFB.

TheIDT72V801/72V811/72V821/72V831/72V841/72V851architecture

lendsitselftomanyflexibleconfigurationssuchas:

• 2-levelprioritydatabuffering

FEATURES:

• The IDT72V801 is equivalent to two IDT72V201 256 x 9 FIFOs

• The IDT72V811 is equivalent to two IDT72V211 512 x 9 FIFOs

• The IDT72V821 is equivalent to two IDT72V221 1,024 x 9 FIFOs

• The IDT72V831 is equivalent to two IDT72V231 2,048 x 9 FIFOs

• The IDT72V841 is equivalent to two IDT72V241 4,096 x 9 FIFOs

• The IDT72V851 is equivalent to two IDT72V251 8,192 x 9 FIFOs

• Offers optimal combination of large capacity, high speed,

design flexibility and small footprint

• Ideal for prioritization, bidirectional, and width expansion

applications

• 10 ns read/write cycle time

• 5V input tolerant

• Separate control lines and data lines for each FIFO

• Separate Empty, Full, programmable Almost-Empty and

Almost-Full flags for each FIFO

• Enable puts output data lines in high-impedance state

• Space-saving 64-pin plastic Thin Quad Flat Pack (TQFP/

STQFP)

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

• Green parts available, see ordering information

• Bidirectionaloperation

• Widthexpansion

• Depthexpansion

ThisFIFOisfabricatedusingIDT'shigh-performancesubmicronCMOS

technology.

DESCRIPTION:

TheIDT72V801/72V811/72V821/72V831/72V841/72V851/72V851are

dualsynchronous(clocked)FIFOs. Thedeviceisfunctionallyequivalentto

twoIDT72V201/72V211/72V221/72V231/72V241/72V251FIFOsinasingle

packagewithallassociatedcontrol,data,andflaglinesassignedtoseparate

pins.

FUNCTIONAL BLOCK DIAGRAM

EFA

PAEA

PAFA

FFA

WCLKB

WCLKA

WENA1

WENA2

WENB1

DA0 - DA8

DB0 - DB8

LDA

LDB

WENB2

INPUT REGISTER

OFFSET REGISTER

INPUT REGISTER

OFFSET REGISTER

EFB

FLAG

LOGIC

FLAG

LOGIC

WRITE CONTROL

LOGIC

WRITE CONTROL

LOGIC

PAEB

PAFB

FFB

RAM ARRAY

256 x 9, 512 x 9,

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

4,096 x 9, 8,192 x 9

RAM ARRAY

256 x 9, 512 x 9,

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

4,096 x 9, 8,192 x 9

WRITE POINTER

READ POINTER

WRITE POINTER

READ POINTER

READ CONTROL

LOGIC

READ CONTROL

LOGIC

OUTPUT REGISTER

RESET LOGIC

4093 drw 01

RCLKB

RENB1

RENB2

RSA

OEA

RSB

RCLKA

OEB

QB0 - QB8

QA0 - QA8

RENA1

RENA2

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FEBRUARY 2006



DSC-4093/3

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IDT72V821L15PFGI 替代型号

型号	品牌	替代类型	描述	数据表
72821L25PFG	IDT	功能相似	DUAL CMOS SyncFIFO
72V821L15PFG	IDT	功能相似	Bi-Directional FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, GREEN, PLASTIC, TQFP-64
IDT72821L15PF	IDT	功能相似	DUAL CMOS SyncFIFO

与IDT72V821L15PFGI相关器件

型号	品牌	获取价格	描述	数据表
IDT72V821L15PFI	IDT	获取价格	FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, PLASTIC, TQFP-64
IDT72V821L15PFI9	IDT	获取价格	FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, PLASTIC, TQFP-64
IDT72V821L15TF	IDT	获取价格	3.3 VOLT DUAL CMOS SyncFIFO⑩
IDT72V821L15TF9	IDT	获取价格	FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, PLASTIC, SLIM, TQFP-64
IDT72V821L15TFG	IDT	获取价格	Bi-Directional FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, GREEN, PLASTIC, STQFP-64
IDT72V821L15TFGI	IDT	获取价格	Bi-Directional FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, GREEN, PLASTIC, STQFP-64
IDT72V821L15TFI	IDT	获取价格	FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, PLASTIC, SLIM, TQFP-64
IDT72V821L15TFI8	IDT	获取价格	FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, PLASTIC, SLIM, TQFP-64
IDT72V821L15TFI9	IDT	获取价格	FIFO, 1KX9, 10ns, Synchronous, CMOS, PQFP64, PLASTIC, SLIM, TQFP-64
IDT72V821L20PF	IDT	获取价格	3.3 VOLT DUAL CMOS SyncFIFO⑩

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