Microchip , 1-Channel Ethernet Transceiver 48-Pin TQFP, KSZ8041TL, Трансивер

The KSZ8041 is a single supply 10Base-T/100Base-TX Physical Layer Transceiver, which provides MII/RMII/SMII interfaces to transmit and receive data.

Single-chip 10Base-T/100Base-TX physical layer solution
Low power
Power consumption of <180mW
Power down and power saving modes
Built-in 1.8V regulator for core
Single power supply (3.3V)
HP auto MDI/MDI-X for reliable detection and correction for straight-through and crossover cables with disable and enable option
Robust operation over standard cables
MII interface support (KSZ8041NL only)
RMII Interface Support
External 50MHz system clock (KSZ8041NL or KSZ8041TL/FTL)
25MHz crystal/clock input and 50MHz reference clock output to MAC (KSZ8041RNL)
SMII Interface Support
External 125MHz system clock and 12.5MHz sync clock from MAC (KSZ8041TL/FTL only)
Fiber support 100Base-FX (KSZ8041FTL only)
MIIM (MDC/MDIO) management bus to 6.25MHz for rapid PHY register configuration
Interrupt pin option

Datasheet