Datasheet > 72221L25PF8

72221L25PF8

更新时间： 2023-04-15 00:00:00

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
14页	126K
描述
TQFP-32, Reel

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

72221L25PF8 数据手册

CMOSSyncFIFO^™

64 x 9, 256 x 9, 512 x 9,

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

4,096 x 9 and 8,192 x 9

IDT72421,IDT72201

IDT72211,IDT72221

IDT72231,IDT72241

IDT72251

FEATURES:

DESCRIPTION:

•

64 x 9-bit organization (IDT72421)

The IDT72421/72201/72211/72221/72231/72241/72251 SyncFIFO™

256 x 9-bit organization (IDT72201)

512 x 9-bit organization (IDT72211)

1,024 x 9-bit organization (IDT72221)

2,048 x 9-bit organization (IDT72231)

4,096 x 9-bit organization (IDT72241)

8,192 x 9-bit organization (IDT72251)

10 ns read/write cycle time

Read and Write Clocks can be independent

Dual-Ported zero fall-through time architecture

Empty and Full Flags signal FIFO status

Programmable Almost-Empty and Almost-Full flags can be set

to any depth

are very high-speed, low-power First-In, First-Out (FIFO) memories with

clockedreadandwrite controls. These devices have a 64, 256, 512, 1,024,

2,048,4,096,and8,192x9-bitmemoryarray,respectively. TheseFIFOsare

applicableforawidevarietyofdatabufferingneedssuchasgraphics,localarea

networksandinterprocessorcommunication.

TheseFIFOshave9-bitinputandoutputports.Theinputportiscontrolled

bya free-runningclock(WCLK), andtwowrite enable pins (WEN1, WEN2).

DataiswrittenintotheSynchronousFIFOoneveryrisingclockedgewhenthe

writeenablepinsareasserted.Theoutputportiscontrolledbyanotherclock

pin (RCLK) and two read enable pins (REN1, REN2). The Read Clock can

betiedtotheWriteClockforsingleclockoperationorthetwoclocks canrun

asynchronous ofoneanotherfordual-clockoperation.Anoutputenablepin

(OE)is providedonthe readportforthree-state controlofthe output.

The Synchronous FIFOs have twofixedflags, Empty(EF)andFull(FF).

Two programmable flags, Almost-Empty (PAE) and Almost-Full (PAF), are

provided for improved system control. The programmable flags default to

Empty+7andFull-7forPAE andPAF,respectively.Theprogrammableflag

offsetloadingiscontrolledbyasimplestatemachineandisinitiatedbyasserting

•

Programmable Almost-Empty and Almost-Full flags default to

Empty+7, and Full-7, respectively

•

Output enable puts output data bus in high-impedance state

Advanced submicron CMOS technology

Available in the 32-pin plastic leaded chip carrier (PLCC) and

32-pin Thin Quad Flat Pack (TQFP)

•

For through-hole product please see the IDT72420/72200/72210/ the load pin (LD).

72220/72230/72240 data sheet

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

technology.

•

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

Green parts available, see ordering information

FUNCTIONAL BLOCK DIAGRAM

D0 - D8

WCLK

WEN1

WEN2

OFFSET REGISTER

INPUT REGISTER

FLAG

LOGIC

WRITE CONTROL

LOGIC

PAE

PAF

RAM ARRAY

64 x 9, 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

READ CONTROL

LOGIC

OUTPUT REGISTER

RESET LOGIC

RCLK

REN1

REN2

2655 drw01

Q0 - Q8

C^IDTO^andM^theM^IDTE^logR^oaC^rerI^egA^isteL^redtrA^adeN^maD^rksofI^InN^tegrD^ateU^dDS^eviT^ceTR^ecI^hnA^oloL^gy,InT^c.TE^heM^SynP^cFE^IFOR^isaA^reT^gistU^ereR^dtraE^demaR^rkoA^fInN^tegG^rateE^dDS^{eviceTechnology,Inc.}

OCTOBER 2008

DSC-2655/5

12 3 4 5 6 7...14

中文翻译

下载PDF

72221L25PF8 替代型号

型号	品牌	替代类型	描述	数据表
72221L10PFG8	IDT	类似代替	CMOS SyncFIFO

与72221L25PF8相关器件

型号	品牌	获取价格	描述	数据表
72221L25PFG	IDT	获取价格	FIFO, 1KX9, 15ns, Synchronous, CMOS, PQFP32, GREEN, TQFP-32
72221L25PFG8	IDT	获取价格	CMOS SyncFIFO
72221L25PFGI	IDT	获取价格	FIFO, 1KX9, 15ns, Synchronous, CMOS, PQFP32, GREEN, TQFP-32
72221L25PFGI8	IDT	获取价格	CMOS SyncFIFO
72221L25PFI8	IDT	获取价格	TQFP-32, Reel
72221L50LB	IDT	获取价格	FIFO, 1KX9, 25ns, Synchronous, CMOS, CQCC32
72222-45	MOLEX	获取价格	Barrier Strip Terminal Block, 25A, 1 Row(s), 1 Deck(s)
7222-25.00M	CONNOR-WINFIELD	获取价格	2.5V SURFACE MOUNT 5x3.2mm LVCMOS FIXED FREQUENCY OSCILLATOR OSCILLATOR
72222-50	MOLEX	获取价格	Barrier Strip Terminal Block, 25A, 1 Row(s), 1 Deck(s)
72222-59	MOLEX	获取价格	Barrier Strip Terminal Block, 25A, 1 Row(s), 1 Deck(s)

与72221L25PF8相关文章

LTM4644/LTM4644-1：创新的四输出同步降压微模块调节器
2024-07-02

2
2N3500：一款多用途NPN硅晶体管的全面解析
2024-07-02

3
最详细资料解析：BA5917AFP参数说明、引脚说明
2024-07-02

5
MAX232IDR数据手册：产品特性、电气参数、替代型号推荐
2024-07-02

3

产品中心

服务支持

精选活动

关于我们

帮助中心

72221L25PF8

72221L25PF8 数据手册

72221L25PF8 替代型号

与72221L25PF8相关器件

与72221L25PF8相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

72221L25PF8

72221L25PF8 数据手册

72221L25PF8 替代型号

与72221L25PF8相关器件

与72221L25PF8相关文章

您还可以找

您在本页遇到什么问题？