Microchip, 32-Pin QFN, Ethernet Transceiver, 3.3 V 100 Mbps RMII 3.3V KSZ8091RNBCA, 10Base-T, 100Base-TX

The KSZ8081 is a single-supply 10Base-T/100Base-TX Ethernet physical-layer transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable.

• Single-chip 10Base-T/100Base-TX Ethernet transceiver
• MII Interface support (KSZ8081MNX)
• RMII v1.2 Interface support with a 50MHz reference clock output to MAC, and an option to input a 50MHz reference clock (KSZ8081RNB)
• RMII back-to-back mode support for a 100Mbps copper repeater
• MDC/MDIO management Interface for PHY register configuration
• Programmable interrupt output
• LED outputs for link and activity status indication
• On-chip termination resistors for the differential pairs
• Baseline wander correction
• HP Auto MDI/MDI-X to reliably detect and correct straight-through and crossover cable connections with disable and enable option
• Auto-negotiation to automatically select the highest linkup speed