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LXT981QC PDF预览

LXT981QC

更新时间: 2024-09-17 21:18:11
品牌 Logo 应用领域
英特尔 - INTEL 以太网:16GBASE-T电信电信集成电路
页数 文件大小 规格书
80页 1062K
描述
Ethernet Transceiver, CMOS, PQFP208, PLASTIC, QFP-208

LXT981QC 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:QFP包装说明:FQFP, QFP208,1.2SQ,20
针数:208Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.67
JESD-30 代码:S-PQFP-G208JESD-609代码:e0
长度:28 mm功能数量:1
端子数量:208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:FQFP封装等效代码:QFP208,1.2SQ,20
封装形状:SQUARE封装形式:FLATPACK, FINE PITCH
电源:5 V认证状态:Not Qualified
座面最大高度:4.1 mm子类别:Network Interfaces
标称供电电压:5 V表面贴装:YES
技术:CMOS电信集成电路类型:ETHERNET TRANSCEIVER
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.5 mm
端子位置:QUAD宽度:28 mm
Base Number Matches:1

LXT981QC 数据手册

 浏览型号LXT981QC的Datasheet PDF文件第2页浏览型号LXT981QC的Datasheet PDF文件第3页浏览型号LXT981QC的Datasheet PDF文件第4页浏览型号LXT981QC的Datasheet PDF文件第5页浏览型号LXT981QC的Datasheet PDF文件第6页浏览型号LXT981QC的Datasheet PDF文件第7页 
DATA SHEET  
DECEMBER, 1998  
Revision 1.1  
LXT981 Single-Speed, 5-Port Fast Ethernet Repeater  
with Integrated Management Support  
General Description  
Features  
The LXT981 is a 5-port Class II Fast Ethernet Repeater that  
is fully compliant with IEEE 802.3 standards. Four ports  
directly support 100BASE-TX copper media and also  
support 100BASE-FX fiber media via pseudo-ECL  
(PECL) interfaces. The fifth port, a 100 Mbps Media  
Independent Interface (MII), connects to Media Access  
Controllers (MACs) for bridge/switch applications. The  
MII can also be configured to interface to another PHY  
device, such as the LXT970.  
• Four 100 Mbps ports with complete twisted-pair  
PHYs including integrated filters and 100BASE-FX  
PECL interfaces.  
• MII port connection to either MAC or PHY.  
• Cascadable IRBs.  
• Hardware assist for RMON and the Repeater MIB.  
• High-speed SMI.  
The LXT981 provides an Inter-Repeater Backplane (IRB)  
for expansion, operating at 100 Mbps. Up to 240 ports can  
logically be combined into one repeater using this  
backplane. The LXT981 supports SNMP and RMON  
management via on-chip 32- and 64-bit counters. The  
counters and control information are accessible via a high-  
speed Serial Management Interface (SMI). The device  
supports two source address tracking registers per port and  
a source address matching function.  
• Two address-tracking registers per port.  
• Source address matching function.  
• Integrated LED drivers with user-selectable modes.  
• Available in 208-pin QFP package.  
• Case temperature range: 0-115°C.  
The LXT981 enables cost-efficient 100BASE-TX  
intelligent repeater systems for stackable/modular and  
stand-alone applications.  
LXT981  
Block Diagram  
Twisted Pair_I/O  
Fiber_I/O  
100Mbps  
E'net PHY  
100 Mbps  
Backplane  
100BASE-T  
Repeater  
100M IRB  
100Mbps  
E'net PHY  
Twisted Pair_I/O  
Fiber_I/O  
Mode Control  
Twisted Pair_I/O  
Fiber_I/O  
100Mbps  
E'net PHY  
Device  
Management  
Serial  
Management  
Serial Port  
Twisted Pair_I/O  
Fiber_I/O  
100Mbps  
E'net PHY  
RMON &  
SNMP  
Port & Mgmt  
Status Indicators  
Counters  
LED Drivers  
MII  
Reversible MII  
Refer to www.level1.com for most current information.  
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