XRT72L74IQ160 PDF预览

XRT72L74IQ160

更新时间: 2025-07-19 18:35:55
品牌 Logo 应用领域
艾科嘉 - EXAR ATM异步传输模式电信电信集成电路
页数 文件大小 规格书
104页 598K
描述
ATM Network Interface, 1-Func, CMOS, PBGA352, 35 X 35 MM, PLASTIC, BGA-352

XRT72L74IQ160 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:BGA
包装说明:BGA,针数:352
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.92应用程序:ATM
JESD-30 代码:S-PBGA-B352JESD-609代码:e0
长度:35 mm功能数量:1
端子数量:352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:BGA封装形状:SQUARE
封装形式:GRID ARRAY峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:2.7 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:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:BALL端子节距:1.27 mm
端子位置:BOTTOM处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:35 mmBase Number Matches:1

XRT72L74IQ160 数据手册

 浏览型号XRT72L74IQ160的Datasheet PDF文件第2页浏览型号XRT72L74IQ160的Datasheet PDF文件第3页浏览型号XRT72L74IQ160的Datasheet PDF文件第4页浏览型号XRT72L74IQ160的Datasheet PDF文件第5页浏览型号XRT72L74IQ160的Datasheet PDF文件第6页浏览型号XRT72L74IQ160的Datasheet PDF文件第7页 
áç  
PRELIMINARY  
XRT72L74  
FOUR CHANNEL, DS3 ATM UNI/CLEAR-CHANNEL FRAMER  
DECEMBER 2000  
REV. P1.0.0  
FEATURES  
GENERAL DESCRIPTION  
Compliant with UTOPIA Level 1 and 2 with 8 or 16  
Bit Interface Specification and supports UTOPIA  
Bus speeds of up to 50 MHz  
The XRT72L74 Four Channel DS3 ATM User Net-  
work Interface (UNI)/Clear Channel Framer is de-  
signed to function as either a DS3 ATM UNI or Clear  
channel framer. For ATM UNI applications, this de-  
vice provides the ATM Physical Layer (Physical Medi-  
um Dependent and Transmission Convergence sub-  
layers) interface for both the public and private net-  
works at DS3 rates. For Clear-Channel framer appli-  
cations, this device supports the transmission and re-  
ception of “user data” via the DS3 payload bits.  
Contains on-chip 16 cell FIFO in both the Transmit  
(TxFIFO) and Receive Directions (RxFIFO)  
Contains on-chip 54 byte Transmit OAM Cell buffer  
and a 108 byte Receive OAM cell buffer, for trans-  
mission, reception and processing of OAM cells.  
Supports PLCP or ATM Direct Mapping modes  
Supports M13 and C-Bit Parity Framing Formats  
Supports DS3 Clear Channel Framing Applications  
Includes PRBS Generator and Receiver  
The XRT72L74 incorporates Receive, Transmit, Micro-  
processor Interface, Performance Monitor, Test and Di-  
agnostic and Line Interface Unit Scan Drive sections.  
Supports Local, Remote-Line, Cell, and PLCP  
Loop-backs  
APPLICATIONS  
Private User Network Interfaces  
ATM Switches  
Interfaces to 8 or 16 Bit wide Motorola and Intel µPs  
Low power 3.3V, 5V input tolerant, CMOS  
352 pin PBGA Package  
ATM Concentrators  
DSLAM Equipment  
1 and 3 channel versions also available  
DS3 Frame Relay Equipment  
FIGURE 1. XRT72L74 SIMPLIFIED BLOCK DIAGRAM WITH SYSTEM INTERFACES  
DS3  
UTOPIA BUS  
44.736 MHz  
Level 2  
XRT72L74  
1 of 4 Channels  
TxUClav  
XRT73L04  
4
4
4
TxPOS  
75coax  
TPDATA  
Tx  
UTOPIA  
Interface  
Tx  
Cell  
Processor  
Tx  
PLCP  
Processor  
Tx  
DS3  
Framer  
Tx1  
16  
TxNEG  
TCK  
TNDATA  
TCK  
5
Address  
Tx2  
Ch 2  
Ch 3  
Ch 4  
Rx2  
TxLev  
Reset  
LIU  
Interface  
Drive  
Performance  
Monitor  
LAPD  
Transceiver  
ATM  
Layer  
DMO  
SDOO  
CS  
Tx3  
Rx3  
LLOOP  
and  
Processor  
Scan  
Req  
FEAC  
Processor  
Microprocessor  
Interface  
Tx4  
Rx4  
SCLK  
SDI  
TAOS  
Address  
5
4
4
4
RxPOS  
RxNEG  
75coax  
RPOS  
Rx  
UTOPIA  
Interface  
Rx  
Cell  
Processor  
Rx  
PLCP  
Processor  
Rx  
DS3  
Framer  
16  
RNEG Rx1  
RxLineClk  
RCLK1  
RxUClav  
DS3/E3 LIU  
Host Mode  
WR_RW  
ALE_AS  
RD_DS  
A[10:9]  
Channel  
Select  
ATM Switch  
D[15:0]  
D[7:0]  
4
A[8:0]  
25, 33 or 50  
MHz  
RDY_DTCK  
Intel/Motorola  
µP  
Configuration, Control and Status Monitor  
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com  
 
 
 
 

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