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DP83905

更新时间： 2024-02-10 03:25:19
品牌 Logo 应用领域
美国国家半导体 - NSC 控制器局域网
页数 文件大小 规格书
80页 1053K
描述
AT Local Area Network Twisted-Pair Interface Controller

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DP83905 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：QFP, QFP160(UNSPEC)Reach Compliance Code：unknown
风险等级：5.89JESD-609代码：e0
端子数量：160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：QFP160(UNSPEC)
封装形式：FLATPACK电源：5 V
认证状态：Not Qualified子类别：Serial IO/Communication Controllers
最大压摆率：170 mA标称供电电压：5 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子位置：QUAD
uPs/uCs/外围集成电路类型：SERIAL IO/COMMUNICATION CONTROLLER, LANBase Number Matches：1

DP83905 数据手册

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PRELIMINARY  
November 1995  
DP83905 AT/LANTICTM  
AT Local Area Network Twisted-Pair  
Interface Controller  
General Description  
The AT/LANTIC AT Local Area Network Twisted-pair Inter-  
face Controller is a CMOS VLSI device designed for easy  
implementation of CSMA/CD local area networks.  
Features  
Y
Controller and integrated bus interface solution for IEEE  
802.3, 10BASE5, 10BASE2, and 10BASE-T  
Y
Software compatible with Novell ’s NE2000/Plus indus-  
É
try standard Ethernet Adapters  
Selectable buffer memory size  
No external bus logic or drivers  
Integrated controller, ENDEC, and transceiver  
Full IEEE 802.3 AUI interface  
Single 5V supply  
Unique to the AT/LANTIC is the integration of the entire bus  
interface for PC-AT ISA (Industry Standard Architecture)  
Y
Y
Y
Y
Y
É
bus based systems. Hardware and software selectable op-  
tions allow the AT/LANTIC’s bus interface to be configured  
software compatible to either an NE2000 or Ethercard  
PLUS16TM. All bus drivers and control logic are integrated  
to reduce board cost and area.  
10BASE-T TRANSCEIVER MODULE:  
Y
Supported network interfaces include 10BASE5 or  
10BASE2 Ethernet via an external transciever connected to  
its AUI port, and Twisted-pair Ethernet (10BASE-T) using  
the on-board transceiver. The AT/LANTIC provides the  
Ethernet Media Access Control (MAC), Encode-Decode  
(ENDEC) with an AUI interface, and 10BASE-T transceiver  
functions in accordance with the IEEE 802.3 standards.  
Integrates transceiver functionality:  
Ð Transmitter and receiver functions  
Ð Collision detect, heartbeat and jabber  
Ð Selectable link integrity test or link disable  
Ð Polarity Detection/Correction  
ENDEC MODULE:  
Y
10 Mbit/s Manchester encoding/decoding  
The AT/LANTIC’s integrated 10BASE-T transceiver fully  
complies with the IEEE standard.This functional block incor-  
porates the receiver, transmitter, collision, heartbeat, Ioop-  
back, jabber, and link integrity blocks as defined in the stan-  
dard. The transceiver when combined with equalization re-  
sistors, transmit/receive filters, and pulse transformers pro-  
vides a complete physical interface from the AT/LANTIC  
Controller’s ENDEC module and the twisted pair medium.  
(Continued)  
Y
Squelch on receive and collision pairs  
MAC/CONTROLLER MODULE:  
Y
Software compatible with DP8390, DP83901, DP83902  
Y
Efficient buffer management implementation  
1.0 System Diagram  
TL/F/11498–1  
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.  
AT/LANTICTM is a trademark of National Semiconductor Corporation.  
PC-ATÉ is a registered trademark of International Business Machines Corp.  
NovellÉ is a registered trademark of Novell, Inc.  
EtherCard PLUSTM and EtherCard PLUS 16TM are trademarks of Standard Microsystems Corp.  
C
1995 National Semiconductor Corporation  
TL/F/11498  
RRD-B30M115/Printed in U. S. A.  
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