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LAN83C183

10/100 Mbps TX/FX/10BT Fast Ethernet Physical Layer Device (PHY)

SMSC -> Microchip 

LAN83C183

PRELIMINARY

10/100 Mbps TX/FX/10BT

Fast Ethernet Physical Layer Device (PHY)

Features

• Single-Chip 100BASE-TX/FX/10BASE-T Fast

Ethernet Physical Layer Solution

• Dual-Speed - 10/100 Mbits/sec

• Half-Duplex And Full-Duplex Support

• MII Interface to Ethernet Controller

• MI Interface for Configuration and Status

• Optional Repeater Interface

• AutoNegotiation: 10/100, Full/Half-Duplex

• Meets All Applicable IEEE 802.3 Standards

• On-Chip Wave Shaping - No External Filters

Required

• Adaptive Equalizer

• Baseline Wander Correction

• Interface to External 100BASE-T4 PHY

• LED Outputs

– Link

– Activity

– Collision

– Full Duplex

– 10/100

– User-Programmable

• Many User Features and Options

• Few External Components

• 3.3V Supply with 5V-Tolerant I/O

• 64-Pin TQFP Package (1.4-mm Body

Thickness)

GENERAL DESCRIPTION

The SMSC LAN83C183 is a highly integrated analog interface IC for twisted pair Ethernet applications.

The LAN83C183 can be configured for either 100-Mbps (100BASE-TX or 100 BASE-FX) or 10-Mbps

(10BASE-T) Ethernet operation. The 100BASE-FX is packaged in a 64-Pin TQFP pack-age.

The LAN83C183 consists of a 4B5B/Manchester encoder/decoder, scrambler/descrambler, transmitter

with wave shaping and output driver, twisted pair receiver with on-chip equalizer and baseline wander

correction, clock and data recovery, AutoNegotiation, controller interface (MII), and serial port (MI).

The addition of internal output waveshaping circuitry and on-chip filters eliminates the need for external

filters normally required in 100BASE-TX and 10BASE-T applications.

The LAN83C183 can automatically configure itself for 100- or 10-Mbps and full- or half-duplex operation

with the on-chip AutoNegotiation algorithm.

The eleven 16-bit registers of the LAN83C183 can be accessed through the Management Interface (MI)

serial port. These registers contain configuration inputs, status outputs, and device capabilities.

The LAN83C183 is ideal as a media interface for 100BASE-TX/10BASE-T adapter cards, PC Cards,

motherboards, mobile applications, repeaters, switching hubs, and external PHYs.

The LAN83C183 operates from a single 3.3V supply. All inputs and outputs are 5V-tolerant and can

directly interface to other 5V devices.

SMSC DS – LAN83C183

Rev. 12/14/2000

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