Datasheet > 72V3612

72V3612

更新时间： 2024-09-17 14:58:15

品牌	Logo	应用领域
瑞萨 - RENESAS		先进先出芯片
页数	文件大小	规格书
25页	285K
描述
64 x 36 x 2 SyncBiFIFO, 3.3V

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中文翻译

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数据手册

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72V3612 数据手册

3.3 VOLT CMOS SyncBiFIFO^TM

64 x 36 x 2

72V3612

• Passive parity checking on each port

• Parity generation can be selected for each port

• Available in space saving 120-pin thin quad flat package (TQFP)

• Green parts available, see ordering information

FEATURES:

• Two independent clocked FIFOs (64 x 36 storage capacity each)

buffering data in opposite directions

• Supports clock frequencies up to 83 MHz

• Fast access times of 8ns

DESCRIPTION:

• Free-running CLKA and CLKB can be asynchronous or

coincident (simultaneous reading and writing of data on a

single clock edge is permitted)

• Mailbox bypass Register for each FIFO

• Programmable Almost-Full and Almost-Empty Flags

• Microprocessor interface control logic

TheIDT72V3612isdesignedtorunoffa3.3Vsupplyforexceptionallylow-

powerconsumption. Thisdeviceisamonolithichigh-speed,low-powerCMOS

bi-directionalclockedFIFOmemory. Itsupportsclockfrequenciesupto83MHz

andhasreadaccesstimesasfastas8ns. TheFIFOoperatesinIDTStandard

mode. Two independent 64 x 36 dual-port SRAM FIFOs on board the chip

bufferdatainoppositedirections. EachFIFOhasflagstoindicateemptyand

fullconditionsandtwoprogrammableflags(Almost-FullandAlmost-Empty)to

• EFA , FFA , AEA , and AFA flags synchronized by CLKA

• EFB , FFB , AEB , and AFB flags synchronized by CLKB

FUNCTIONAL BLOCK DIAGRAM

CLKA

CSA

W/RA

ENA

Port-A

Control

Logic

MBF1

PEFB

MBA

Parity

Gen/Check

Mail 1

PGB

RAM

ARRAY

64 x 36

RST

Device

Control

ODD/

EVEN

Read

Pointer

Write

Pointer

EFB

AEB

Status Flag

Logic

FFA

AFA

FIFO1

FS0

FS1

Programmable Flag

Offset Register

B0 - B36

A0 - A35

FIFO2

FFB

AFB

EFA

AEA

Status Flag

Logic

Write

Pointer

Read

Pointer

RAM

ARRAY

64 x 36

PGA

Mail 2

Parity

Gen/Check

PEFA

MBF2

CLKB

Port-B

Control

Logic

CSB

W/RB

ENB

MBB

4659 drw 01

COMMERCIAL TEMPERATURE RANGE

Feb.19.20

12 3 4 5 6 7...25

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