AM7992B Datasheet (Advanced Micro Devices) - Serial Interface Adapter (SIA)

AM7992B, Serial Interface Adapter (SIA)

The Am7992B Serial Interface Adapter (SIA) is a Manchester encoder/decoder compatible with IEEE 802.3, Cheapernet, and Ethernet speciﬁcations.

In an IEEE 802.3/Ethernet application, the Am7992B interfaces the Am7990 Local Area Network Controller for Ethernet (LANCE) to the Ethernet transceiver devic

FINAL Am7992B Serial Interface Adapter (SIA) DISTINCTIVE CHARACTERISTICS s Compatible with lEEE 802.3/Ethernet/Cheapernet speciﬁcations s Crystal/TTL oscillator-controlled Manchester encoder s Manchester decoder acquires clock and data within four bit times with an accuracy of ±3 ns s Guaranteed carrier and collision detection squelch threshold limits Carrier/collision detected for inputs greater than 275 mV No carrier/collision for inputs less than 175 mV

AM7992B Features

* 0.01% (no external adjustments are required). Transmission is enabled when T