Microchip LAN9115-MT, Ethernet Controller, 10Mbps MII, 3.3 V, 100-Pin TQFP
4mm, Maximum Operating Temperature: +70 °C.Microchip LAN9115-MT, Ethernet Controller, 10Mbps MII, 3.3 V, 100-Pin TQFP, Physical Network Type: 100BaseTX, 10BaseT, IC Type: Controller IC, Communication Mode: Full Duplex, Half Duplex, Data Rate: 10 Mbps, 100Mbps, Loopback Mode: Internal, Standard Supported: IEEE 802.3u, Mounting Type: Surface Mount, Auto-Negotiation: Yes, Dimensions: 14 x 14 x 1.