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DP83905AVQB Datasheet

  • DP83905AVQB

  • AT Local Area Network Twisted-Pair Interface Controller

  • 1053.47KB

  • 80頁

  • NSC

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DP83905 AT LANTIC AT Local Area Network Twisted-Pair Interface Controller
PRELIMINARY
November 1995
DP83905 AT LANTIC
TM
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
Unique to the AT LANTIC is the integration of the entire bus
interface for PC-AT ISA (Industry Standard Architecture)
bus based systems Hardware and software selectable op-
tions allow the AT LANTIC鈥檚 bus interface to be configured
software compatible to either an NE2000 or Ethercard
PLUS16
TM
All bus drivers and control logic are integrated
to reduce board cost and area
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
The AT LANTIC鈥檚 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鈥檚 ENDEC module and the twisted pair medium
(Continued)
Features
Controller and integrated bus interface solution for IEEE
802 3 10BASE5 10BASE2 and 10BASE-T
Y
Software compatible with
Novell 鈥檚 NE2000 Plus
indus-
try standard Ethernet Adapters
Y
Selectable buffer memory size
Y
No external bus logic or drivers
Y
Integrated controller ENDEC and transceiver
Y
Full IEEE 802 3 AUI interface
Y
Single 5V supply
10BASE-T TRANSCEIVER MODULE
Y
Integrates transceiver functionality
Transmitter and receiver functions
Collision detect heartbeat and jabber
Selectable link integrity test or link disable
Polarity Detection Correction
ENDEC MODULE
Y
10 Mbit s Manchester encoding decoding
Y
Squelch on receive and collision pairs
MAC CONTROLLER MODULE
Y
Software compatible with DP8390 DP83901 DP83902
Y
Efficient buffer management implementation
Y
1 0 System Diagram
TL F 11498 鈥?1
TRI-STATE is a registered trademark of National Semiconductor Corporation
AT LANTIC
TM
is a trademark of National Semiconductor Corporation
PC-AT is a registered trademark of International Business Machines Corp
Novell is a registered trademark of Novell Inc
EtherCard PLUS
TM
and EtherCard PLUS 16
TM
are trademarks of Standard Microsystems Corp
C
1995 National Semiconductor Corporation
TL F 11498
RRD-B30M115 Printed in U S A

DP83905AVQB 產(chǎn)品屬性

  • 24

  • 集成電路 (IC)

  • 接口 - 控制器

  • AT/LANTIC™

  • AT，LAN 雙絞線接口控制器

  • -

  • 4.75 V ~ 5.25 V

  • 100mA

  • 0°C ~ 70°C

  • 表面貼裝

  • 160-BFQFP

  • 160-PQFP（28x28）

  • 托盤

  • *DP83905AVQB

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