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728985J PDF预览

728985J

更新时间: 2024-09-25 14:46:59
品牌 Logo 应用领域
艾迪悌 - IDT 电信电信集成电路
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

728985J 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:Obsolete零件包装代码:LCC
包装说明:0.650 X 0.650 INCH, 1.27 MM PITCH, PLASTIC, LCC-44针数:44
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.11
Is Samacsys:NJESD-30 代码:S-PQCC-J44
JESD-609代码:e0长度:16.5862 mm
湿度敏感等级:1功能数量:1
端子数量:44最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:QCCJ封装等效代码:LDCC44,.7SQ
封装形状:SQUARE封装形式:CHIP CARRIER
峰值回流温度(摄氏度):225电源:5 V
认证状态:Not Qualified座面最大高度:4.57 mm
子类别:Other Telecom ICs最大压摆率:0.01 mA
标称供电电压:5 V表面贴装:YES
电信集成电路类型:DIGITAL TIME SWITCH温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:J BEND
端子节距:1.27 mm端子位置:QUAD
处于峰值回流温度下的最长时间:20宽度:16.5862 mm
Base Number Matches:1

728985J 数据手册

 浏览型号728985J的Datasheet PDF文件第2页浏览型号728985J的Datasheet PDF文件第3页浏览型号728985J的Datasheet PDF文件第4页浏览型号728985J的Datasheet PDF文件第5页浏览型号728985J的Datasheet PDF文件第6页浏览型号728985J的Datasheet PDF文件第7页 
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  
delayarehighpriorityrequirementsintodaysintegrateddataandmultimedia  
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  
DS  
A0/  
A5  
CS  
R/W  
D0/  
D7  
DTA  
APRIL 2001  
1
2001 Integrated Device Technology, Inc.  
DSC-5708/2  

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