The Microchip media independent interface (RMII), includes all the functions of a 10/100BASE-T/TX/FX switch system that combines a switch engine, frame buffer management, address look-up table, queue management, MIB counters, media access controllers (MAC) and PHY transceivers. The device offers comprehensive programmable 2 LED indicators support for link, activity, full-/half-duplex and 10/100 speed operations. This device has two options for a reference clock. These LED pins are directly controllable. This 64 pin device has an industrial temperature range from –40°C to +85°C. The KSZ8463RLI have two options for a reference clock.

Single 3.3V power supply with optional VDD input and output for 1.8 V, 2.5 V, or 3.3 V
Wire-speed Ethernet switching fabric with extensive filtering
Two integrated 10/100BASE-TX PHY transceivers, featuring the industry’s lowest power consumption
Full-featured QoS support
Flexible management options that support common standard interfaces