LAN8710A 10/100 Base-T/TX Ethernet Transceiver Microchip LAN8710A 10/100 Base-T/TX Ethernet Transceiver is a small-footprint, low-power Ethernet Physical Layer (PHY) with variable I/O voltage that is compliant with the IEEE 802.3-2005 standards. The LAN8710A supports communication with an Ethernet MAC via a standard MII (IEEE 802.3u)/RMII interface. It contains a full-duplex 10-BASE-T/100BASE-TX transceiver and supports 10Mbps (10BASE-T) and 100Mbps (100BASE-TX) operation. The LAN8710A implements auto-negotiation to automatically determine the best possible speed and duplex mode of operation. HP Auto-MDIX support allows the use of direct connect or cross-over LAN cables.