Datasheet > 72245LB25JG8

72245LB25JG8

更新时间： 2024-11-15 00:43:31

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	338K
描述
CMOS SyncFIFO

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

72245LB25JG8 数据手册

CMOS SyncFIFO^TM

256 x 18, 512 x 18, 1,024 x 18,

2,048 x 18, and 4,096 x 18

IDT72205LB, IDT72215LB,

IDT72225LB, IDT72235LB,

IDT72245LB

writecontrols.TheseFIFOsareapplicableforawidevarietyofdatabuffering

needs, such as optical disk controllers, Local Area Networks (LANs), and

interprocessorcommunication.

FEATURES:

• 256 x 18-bit organization array (IDT72205LB)

• 512 x 18-bit organization array (IDT72215LB)

• 1,024 x 18-bit organization array (IDT72225LB)

• 2,048 x 18-bit organization array (IDT72235LB)

• 4,096 x 18-bit organization array (IDT72245LB)

• 10 ns read/write cycle time

TheseFIFOshave18-bitinputandoutputports.Theinputportiscontrolled

byafree-runningclock(WCLK),andaninputenablepin(WEN).Dataisread

intothesynchronousFIFOoneveryclockwhenWENisasserted.Theoutput

portiscontrolledbyanotherclockpin(RCLK)andanotherenablepin(REN).

Thereadclockcanbetiedtothewriteclockforsingleclockoperationorthe

twoclockscanrunasynchronousofoneanotherfordual-clockoperation. An

OutputEnablepin(OE)isprovidedonthereadportforthree-statecontrolof

theoutput.

ThesynchronousFIFOshavetwofixedflags, Empty (EF)andFull(FF),

andtwoprogrammableflags,Almost-Empty(PAE)andAlmost-Full(PAF).The

offsetloadingoftheprogrammableflagsiscontrolledbyasimplestatemachine,

andisinitiatedbyassertingtheLoadpin(LD). AHalf-Fullflag(HF)isavailable

when the FIFO is used in a single device configuration.

ThesedevicesaredepthexpandableusingaDaisy-Chaintechnique.The

XI and XO pins are used to expand the FIFOs. In depth expansion configu-

ration, First Load (FL) is grounded on the first device and set to HIGH for all

other devices in the Daisy Chain.

The IDT72205LB/72215LB/72225LB/72235LB/72245LB is fabricated

usinghigh-speedsubmicronCMOStechnology.

• Empy and Full flags signal FIFO status

• Easy expandable in depth and width

• Asynchronous or coincident read and write clocks

• Programmable Almost-Empty and Almost-Full flags with

default settings

• Half-Full flag capability

• Dual-Port zero fall-through time architecture

• Output enable puts output data bus in high-impedence state

• High-performance submicron CMOS technology

• Available in a 64-lead thin quad flatpack (TQFP/STQFP)

and plastic leaded chip carrier (PLCC)

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

• Green parts available, see ordering information

DESCRIPTION:

The IDT72205LB/72215LB/72225LB/72235LB/72245LB are very high

speed,low-powerFirst-In,First-Out(FIFO)memorieswithclockedreadand

FUNCTIONAL BLOCK DIAGRAM

WCLK

D0-D17

INPUT REGISTER

OFFSET REGISTER

FLAG

WRITE CONTROL

LOGIC

•

LOGIC

RAM ARRAY

256 x 18, 512 x 18

1,024 x 18, 2,048 x 18

4,096 x 18

)

READ POINTER

WRITE POINTER

•

READ CONTROL

LOGIC

EXPANSION LOGIC

(

OUTPUT REGISTER

RESET LOGIC

2766 drw 01

RCLK

Q0-Q17

IDTandtheIDTlogoareregisteredtrademarksofIntegratedDeviceTechnology, Inc. SyncFIFOisatrademarkofIntegratedDeviceTechnology, Inc.

MARCH 2013

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

DSC-2766/3

12 3 4 5 6 7...16

中文翻译

下载PDF

与72245LB25JG8相关器件

型号	品牌	获取价格	描述	数据表
72245LB25JGI	IDT	获取价格	CMOS SyncFIFO
72245LB25JGI8	IDT	获取价格	CMOS SyncFIFO
72245LB25PF	IDT	获取价格	TQFP-64, Tray
72245LB25PFG	IDT	获取价格	CMOS SyncFIFO
72245LB25PFG8	IDT	获取价格	CMOS SyncFIFO
72245LB25PFGI	IDT	获取价格	FIFO, 4KX18, 15ns, Synchronous, CMOS, PQFP64, GREEN, PLASTIC, TQFP-64
72245LB25PFGI8	IDT	获取价格	FIFO, 4KX18, 15ns, Synchronous, CMOS, PQFP64, GREEN, PLASTIC, TQFP-64
72245LB25PFI8	IDT	获取价格	TQFP-64, Reel
72245LB25PFI9	IDT	获取价格	FIFO, 4KX18, 15ns, Synchronous, CMOS, PQFP64, PLASTIC, TQFP-64
72245LB25TF	IDT	获取价格	TQFP-64, Tray

与72245LB25JG8相关文章

国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

28
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

11
AMD宣布全球裁员约1000人，调整战略聚焦增长
2024-11-14

13
英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

34

产品中心

服务支持

精选活动

关于我们

帮助中心

72245LB25JG8

72245LB25JG8 数据手册

与72245LB25JG8相关器件

与72245LB25JG8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

72245LB25JG8

72245LB25JG8 数据手册

与72245LB25JG8相关器件

与72245LB25JG8相关文章

您还可以找

您在本页遇到什么问题？