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DP83840A PDF预览

DP83840A

更新时间: 2024-01-04 16:54:55
品牌 Logo 应用领域
美国国家半导体 - NSC 以太网局域网(LAN)标准
页数 文件大小 规格书
89页 433K
描述
10/100 Mb/s Ethernet Physical Layer

DP83840A 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:QFP, QFP100,.7X.9Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.82
数据速率:100000 MbpsJESD-30 代码:R-PQFP-G100
JESD-609代码:e3长度:20 mm
湿度敏感等级:3功能数量:1
端子数量:100收发器数量:1
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
封装等效代码:QFP100,.7X.9封装形状:RECTANGULAR
封装形式:FLATPACK峰值回流温度(摄氏度):260
电源:5 V认证状态:Not Qualified
座面最大高度:3.4 mm子类别:Network Interfaces
最大压摆率:335 mA标称供电电压:5 V
表面贴装:YES技术:BICMOS
电信集成电路类型:TELECOM CIRCUIT温度等级:COMMERCIAL
端子面层:TIN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:14 mm
Base Number Matches:1

DP83840A 数据手册

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March 1997  
DP83840A  
10/100 Mb/s Ethernet Physical Layer  
Features  
General Description  
The DP83840A is a Physical Layer device for Ethernet  
10BASE-T and 100BASE-X using category 5 Unshielded,  
Type 1 Shielded and Fiber Optic cables.  
IEEE 802.3 10BASE-T compatible--ENDEC and UTP/  
STP transceivers and filters built-in  
IEEE 802.3u 100BASE-X compatible--support for 2 pair  
Category 5 UTP (100m), Type 1 STP and Fiber Optic  
Transceivers--Connects directly to the DP83223 Twisted  
Pair Transceiver  
This VLSI device is designed for easy implementation of  
10/100 Mb/s Ethernet LANs. It interfaces to the PMD sub-  
layer through National Semiconductor's DP83223 Twisted  
Pair Transceiver, and to the MAC layer through a Media  
Independent Interface (MII), ensuring interoperability  
between products from different vendors.  
ANSI X3T12 TP-PMD compatible  
IEEE 802.3u Auto-Negotiation for automatic speed  
selection  
IEEE 802.3u compatible Media Independent Interface  
(MII) with Serial Management Interface  
The DP83840A is designed with National Semiconductor's  
BiCMOS process. Its system architecture is based on the  
integration of several of National Semiconductor's industry  
proven core technologies:  
Integrated high performance 100 Mb/s clock recovery  
circuitry requiring no external filters  
Full Duplex support for 10 and 100 Mb/s  
10BASE-T ENDEC/Transceiver module to provide the 10  
Mb/s IEEE 802.3 functions  
MII Serial 10 Mb/s output mode  
Clock Recovery/Generator Modules from National  
Semiconductor's leading FDDI product  
Fully configurable node and repeater modes--allows  
operation in either application  
FDDI Stream Cipher (Cyclone)  
Programmable loopback modes for easy system  
diagnostics  
100BASE-X physical coding sub-layer (PCS) and control  
logic that integrate the core modules into a dual speed  
Ethernet physical layer controller  
Flexible LED support  
IEEE 1149.1 Standard Test Access Port and Boundary-  
Scan compatible  
Small footprint 100-pin PQFP package  
Individualized scrambler seed for multi-PHY applications  
System Diagram  
10BASE-T  
MII  
10 AND/OR 100 Mb/s  
DP83840A  
ETHERNET MAC OR  
10/100 Mb/s  
REPEATER/SWITCH  
DP83223  
RJ-45  
ETHERNET PHYSICAL LAYER  
PORT  
100BASE-TX  
TRANSCEIVER  
10BASE-T  
OR  
100BASE-TX  
STATUS  
100BASE-FX  
TRANSCEIVER  
CLOCKS  
LEDS  
Version A  
National Semiconductor  
1

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