AM79C98 Datasheet (Advanced Micro Devices) - Twisted-Pair Ethernet Transceiver

AM79C98, Twisted-Pair Ethernet Transceiver

The Am79C98 Twisted-Pair Ethernet Transceiver (TPEX) is an integrated circuit that implements the medium attachment unit (MAU) functions for the twisted-pair medium, as speciﬁed by the IEEE 802.3 standard (Type 10BASE-T).

This device provides the necessary electrical and functional interface between

FINAL Am79C98 Twisted-Pair Ethernet Transceiver (TPEX) DISTINCTIVE CHARACTERISTICS s CMOS device provides compliant operation and low operating current from a single +5 V supply s Power Down mode provides reduced power consumption for battery-powered applications.

Reset capability allows use in remote MAU applications.

s Pin-selectable twisted-pair receive polarity detection and automatic inversion of the receive signal.

Polarity indication output pin can directly drive an LED.

s Pin-selectable

AM79C98 Features

* including pin-selectable TwistedPair Receive Polarity Detection and Automatic Polarity Reversal, Link Status indication, Link Test disable function, and transmit and receive status. The Twisted-Pair Polarity and Link Status pins can be used to drive LEDs directly. The Am79C98 is fabricated in CMOS