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DP83906VLJ-AT, DP83907, DP83907VF/NOPB184

Table of contents:
Info of DP83906VLJ-AT
Info of DP83907
Info of DP83907VF/NOPB184

DP83906VLJ-AT, DP83907, DP83907VF/NOPB184 Selling Leads, Datasheet

MFG:NS Package Cooled:QFP D/C:03+

DP83906VLJ-AT, DP83907, DP83907VF/NOPB184 Picture

DP83906VLJ-AT, DP83907, DP83907VF/NOPB184 Datasheet download

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Part Number: DP83906VLJ-AT

MFG: NS

Package Cooled: QFP

D/C: 03+

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DP83907 General Description

The DP83907 Twisted-Pair Enhanced Coaxial Network Interface Controller is a CMOS VLSI device designed for easy implementation of CSMA/CD local area networks. Unique to the DP83907 is the integration of the entire bus interface for PCAT ISA (Industry Standard Architecture) bus based systems. Hardware and software selectable options allow the DP83907's bus interface to be configured in the same manner as an NE2000 Architecture. 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 transceiver connected to its AUl port, and Twisted-pair EthernetÉ (10BASE-T) using the on-board transceiver. The DP83907 provides the Ethernet Media Access Control (MAC), Encode-Decode (ENDEC) with an AUl interface, and 10BASE-T transceiver functions in accordance with the lEEE 802.3 standards.

The DP83907's integrated 10BASE-T transceiver fully complies with the IEEE standard. This functional block incorporates the receiver, transmitter, collision, heartbeat, loopback, jabber, and link integrity blocks as defined in the standard. The transceiver when combined with equalization resistors, transmit/receive filters, and pulse transformers provides a complete physical interface from the DP83907's ENDEC module and the twisted pair medium.

The integrated ENDEC module allows Manchester encoding and decoding via a differential transceiver and phase lock loop decoder at 10 Mbit/sec. Also included are a collision detect translator and diagnostic loopback capability. The ENDEC module interfaces directly to the transceiver module, and also provides a fully IEEE compliant AUI (Attachment Unit Interface) for connection to other media transceivers.

The Media Access Control function which is provided by the Network Interface Control module (NIC) provides simple and efficient packet transmission and reception control by means of off-board memory which can be accessed through an I/O port.

The DP83907 provides a comprehensive solution for 10BASE-T IEEE 802.3 networks. Due to the inherent constraints of CMOS processing, isolation is required at the AUI differential signal interface for 10BASE5 and 10BASE2 applications.

DP83907 Maximum Ratings

Supply Voltage (VCC)                       -0.5V to a7.0V
Storage Temperature (TSTG)          -65 to a150
Package Power Dissipation (PD)                  900 mW
Lead Temperature (TL)                                  260
    (Soldering, 10 seconds)

DP83907 Features

· Controller and integrated bus interface solution for IEEE 802.3, 10BASE5, 10BASE2, and 10BASE-T
· Software compatible with industry standard Ethernet Adapters: NovellÉ's NE2000
· No external bus logic or drivers needed
· Supports jumpered or jumperless configuration
· Provides EEPROM interface for non-volatile storage of configuration data, user-defined data and Ethernet Physical Address
· Allows in-situ programming of EEPROM
· Integrated controller, ENDEC, and transceiver
· Full IEEE 802.3 compliant AUI interface
· Single 5V supply

10BASE-T TRANSCEIVER MODULE:
· Integrates transceiver functionality
· Transmitter and receiver functions
· Collision detect, heartbeat and jabber
· Selectable link integrity test or link disable
· Polarity Detection/Correction
· Auto switch
· On chip filter
ENDEC MODULE:
· 10 Mbit/s Manchester encoding/decoding
· Squelch on receive and collision pairs MAC/CONTROLLER MODULE:
· Software compatible with DP8390, DP83901, DP83902
· Efficient buffer management implementation IN-CIRCUIT TEST

DP83907 Connection Diagram

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