The Microchip KSZ8081RNAIA-TR is a 10/100 BASE-TX Physical Layer Transceiver Ethernet IC with integrated IEEE 802.3u, 802.3x, 802.3ab, 802.3z, and 802.3az compliant link operation. It features a twisted-pair physical medium, 10 Mbps (10BASE-T) and 100 Mbps (100BASE-TX) link speeds, and a wide range of integrated PHY functionality. This includes integrated DC, AC, and ESD protection, auto-negotiation, and parity error checking. It also features an SNMP compatible MIB with including status and control, and a pre-emphasis/equalization that adds signal strength and improves system operating performance. The integrated external memory interface allows for the use of an external memory for storing application code. This makes the KSZ8081RNAIA-TR an excellent choice for applications that require a low-cost yet robust Ethernet IC.