Datasheet > IDT728985J8

IDT728985J8

更新时间： 2023-06-15 00:00:00

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
13页	106K
描述
Digital Time Switch, PQCC44, 0.650 X 0.650 INCH, 1.27 MM PITCH, PLASTIC, LCC-44

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中文翻译

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数据手册
替代型号

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IDT728985J8 数据手册

TIME SLOT INTERCHANGE

DIGITAL SWITCH

256 x 256

IDT728985

andwriteaccess toindividualchannels.As animportantfunctionofadigital

switchis tomaintainsequenceintegrityandminimizethroughputdelay,the

IDT728985isanidealsolutionformostswitchingneeds.

ꢀEATURES:

•

256 x 256 channel non-blocking switch

Automatic signal identification (ST-BUS^®, GCI)

8 RX inputs — 32 channels at 64 Kbit/s per serial line

8 TX outputs — 32 channels at 64 Kbit/s per serial line

Three-state serial outputs

Microprocessor Interface (8-bit data bus)

Frame Integrity for data applications

5V Power Supply

Operating Temperature Range -40°C to +85°C

Available in 44-pin Plastic Leaded Chip Carrier (PLCC),

44-pin Plastic Quad Flatpack (PQFP) and 40-pin Plastic Dip

(P-DIP)

ꢀUNCTIONALDESCRIPTION

Framesequence,constantthroughputdelay,andguaranteedminimum

delayarehighpriorityrequirementsintoday’sintegrateddataandmultimedia

networks. TheIDT728985provides thesefunctions onaper-channelbasis

usingastandardmicroprocessorcontrolinterface. Eachoftheeightseriallines

is designed to switch 64 Kbit/s PCM or N x 64 Kbit/s data.

InProcessorMode,themicroprocessorcanaccesstheinputandoutputtime

slotstocontrolotherdevicessuchasISDNtransceiversandtrunkinterfaces.

SupportingbothGCIandST-BUS^®formats,IDT728985hasincorporatedan

internal circuit to automatically identify the polarity and format of the frame

synchronization.

DESCRIPTION:

TheIDT728985isaST-BUS^®/GCIcompatibledigitalswitchcontrolledby

amicroprocessor. TheIDT728985canhandleasmanyas256,64Kbit/sinput

andoutputchannels. Those256channelsaredividedinto8serialinputsand

outputs,eachofwhichconsistsof32channels. TheIDT728985providesper-

channelvariableorconstantthroughputdelaymodesandmicroprocessorread

AfunctionalblockdiagramoftheIDT728985deviceisshownonpage1.

The serial streams operate continuously at 2.048 Mb/s and are arranged in

125µswideframeseachcontaining32,8-bitchannels. Eightinput(RX0-7)and

ꢀUNCTIONAL BLOCK DIAGRAM

ODE

C4i

F0i

VCC GND

TX0

TX1

TX2

TX3

TX4

TX5

TX6

TX7

Timing

Unit

RX0

RX1

RX2

RX3

RX4

RX5

RX6

RX7

Output MUX

Receive

Serial Data

Streams

Transmit

Serial Data

Streams

Data

Memory

Connection

Memory

Control Register

Microprocessor Interface

5708 drw01

CCO

A0/

R/W

D0/

DTA

APRIL 2001

2001 Integrated Device Technology, Inc.

DSC-5708/2

12 3 4 5 6 7...13

中文翻译

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IDT728985J8 替代型号

型号	品牌	替代类型	描述	数据表
MT8986AP1	MICROSEMI	功能相似	Digital Time Switch, CMOS, PQCC44, LEAD FREE, PLASTIC, MS-018AC, LCC-44

与IDT728985J8相关器件

型号	品牌	获取价格	描述	数据表
IDT728985JG	IDT	获取价格	Digital Time Switch, PQCC44, 0.650 X 0.650 INCH, 1.27 MM PITCH, PLASTIC, LCC-44
IDT728985JG8	IDT	获取价格	Digital Time Switch, PQCC44, 0.650 X 0.650 INCH, 1.27 MM PITCH, PLASTIC, LCC-44
IDT728985P	IDT	获取价格	Digital Time Switch, PDIP40, 2.050 X 0.600 INCH, 0.100 INCH PITCH, PLASTIC, DIP-40
IDT7290820	IDT	获取价格	TIME SLOT INTERCHANGE DIGITAL SWITCH 2,048 x 2,048
IDT7290820BC	IDT	获取价格	TIME SLOT INTERCHANGE DIGITAL SWITCH 2,048 x 2,048
IDT7290820BCG	IDT	获取价格	Digital Time Switch, PBGA100, 11 X 11 MM, 1 MM PITCH, BGA-100
IDT7290820J	IDT	获取价格	TIME SLOT INTERCHANGE DIGITAL SWITCH 2,048 x 2,048
IDT7290820J8	IDT	获取价格	Digital Time Switch, PQCC84, 1.150 X 1.150 INCH, 1.27 MM PITCH, PLASTIC, LCC-84
IDT7290820JG8	IDT	获取价格	Digital Time Switch, PQCC84, 1.150 X 1.150 INCH, 1.27 MM PITCH, PLASTIC, LCC-84
IDT7290820PF	IDT	获取价格	TIME SLOT INTERCHANGE DIGITAL SWITCH 2,048 x 2,048

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