Product Summary

The Integrated Multiport Repeater Plus (IMR+) chip is a VLSI circuit that provides a system-level solution to designing
a compliant 802.3 repeater incorporating 10BASE-T transceivers. The device integrates theRepeater functions specified by Section 9 of the IEEE 802.3 standard and Twisted-Pair Transceiver functions complying with the 10BASE-T standard. The Am79C981 provides eight integral twisted-pair medium attachment
units (MAUs) and an attachment unit interface (AUI) port in an 84-pin plastic leaded chip carrier (PLCC).

Features