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IDT77V1253L25PG8 PDF预览

IDT77V1253L25PG8

更新时间: 2024-02-05 11:18:55
品牌 Logo 应用领域
艾迪悌 - IDT ATM异步传输模式电信电信集成电路
页数 文件大小 规格书
44页 366K
描述
ATM Network Interface, 1-Func, CMOS, PQFP144, 28 X 28 MM, PLASTIC, QFP-144

IDT77V1253L25PG8 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:Active零件包装代码:QFP
包装说明:QFP,针数:144
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.29Is Samacsys:N
JESD-30 代码:S-PQFP-G144JESD-609代码:e0
长度:28 mm功能数量:1
端子数量:144最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:QFP封装形状:SQUARE
封装形式:FLATPACK峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:4.07 mm
标称供电电压:3.3 V表面贴装:YES
技术:CMOS电信集成电路类型:ATM/SONET/SDH NETWORK INTERFACE
温度等级:COMMERCIAL端子面层:TIN LEAD
端子形式:GULL WING端子节距:0.65 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:28 mmBase Number Matches:1

IDT77V1253L25PG8 数据手册

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®
Triple Port PHY (Physical Layer)  
for 25.6 and 51.2 Mbps  
ATM Networks  
PRELIMINARY  
IDT77V1253  
Integrated Device Technology, Inc.  
FEATURES  
DESCRIPTION  
• Performs the PHY-Transmission Convergence (TC) and  
Physical Media Dependent (PMD) Sublayer functions for  
three 25.6 Mbps ATM channels  
• Compliant to ATM Forum (af-phy-040.000) and ITU-T  
I.432.5 specifications for 25.6 Mbps physical interface  
• Also operates at 51.2Mbps  
The IDT77V1253 is a member of IDT's family of products  
supportingAsynchronousTransferMode(ATM)datacommu-  
nications and networking. The IDT77V1253 implements the  
physical layer for 25.6 Mbps ATM, connecting three serial  
copper links (UTP Category 3) to one ATM layer device such  
as a SAR or a switch ASIC. The IDT77V1253 also operates  
at 51.2 Mbps, and is well suited to backplane driving applica-  
tions.  
• UTOPIA Level 1, UTOPIA Level 2, or DPI-4 Interface  
• 3-Cell Transmit & Receive FIFOs  
• LED Interface for status signalling  
• Supports UTP Category 3 physical media  
• Interfaces to standard magnetics  
• Low-Power CMOS  
• 3.3V supply with 5V tolerant inputs  
The 77V1253-to-ATM layer interface is selectable as one  
of three options: 16-bit UTOPIA Level 2, 8-bit UTOPIA Level  
1 Multi-PHY, or triple 4-bit DPI (Data Path Interface).  
The IDT77V1253 is fabricated using IDT's state-of-the-art  
CMOS technology, providing the highest levels of integration,  
performance and reliability, with the low-power consumption  
characteristics of CMOS.  
• 144-pin PQFP Package (28 x 28 mm)  
FUNCTIONAL BLOCK DIAGRAM - UTOPIA LEVEL 2 MODE  
TxCLK  
TxDATA[15:0]  
TxPARITY  
+
Tx 0  
Rx 0  
Driver  
5B/4B  
Encoding/  
Decoding  
Tx/Rx ATM  
Cell FIFO  
Scrambler/  
Descrambler  
P/S and S/P  
NRZI  
TxSOC  
+
Clock/Data  
Recovery  
TxCLAV  
TxADDR[4:0]  
PHY-ATM  
Interface  
(UTOPIA or DPI)  
MODE[1:0]  
RxADDR[4:0]  
RxCLK  
RxDATA[15:0]  
RxPARITY  
RxSOC  
+
Tx 1  
Rx 1  
Driver  
5B/4B  
Encoding/  
Decoding  
Tx/Rx ATM  
Cell FIFO  
Scrambler/  
Descrambler  
P/S and S/P  
NRZI  
+
Clock/Data  
Recovery  
RxCLAV  
+
Microprocessor  
(Utility Bus)  
Interface  
Tx 2  
Rx 2  
Driver  
5B/4B  
Encoding/  
Decoding  
Tx/Rx ATM  
Cell FIFO  
Scrambler/  
Descrambler  
P/S and S/P  
NRZI  
+
Clock/Data  
Recovery  
AD[7:0]  
ALE  
3
3
OSC  
RxLED[2:0] TxLED[2:0]  
4781 drw 01  
The IDT logo is a registered trademark of Integrated Device Technology, Inc.  
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES  
NOVEMBER 1998  
©1998 Integrated Device Technology, Inc.  
DSC-4781/1  
1

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