The Microchip LAN83C185 is a low-power， highly integrated analog interface IC for high-performance embedded Ethernet applications. The LAN83C185 requires only a single +3.3V supply.

　　The LAN83C185 consists of an encoder/decoder， scrambler/descrambler， transmitter with wave-shaping and output driver， twisted-pair receiver with on-chip adaptive equalizer and baseline wander （BLW） correction， clock and data recovery， and Media Independent Interface （MII）。

　　The LAN83C185 is fully compliant with IEEE 802.3/802.3u standards and supports both 802.3u-compliant and vendor-specific register functions. It contains a full-duplex 10BASE-T/100BASE-TX transceiver and supports 10 Mbps （10BASE-T） operation on Category 3 and Category 5 unshielded twisted-pair cable， and 100 Mbps （100BASE-TX） operation on Category 5 unshielded twisted-pair cable.