RMII Ethernet PHY for 10/100Base-TX
The KSZ8081RNDCA-TR is a single-port 10/100Base-TX Ethernet physical-layer transceiver from Microchip Technology, using the Reduced Media Independent Interface (RMII) to connect directly to an RMII-capable MAC. It operates in full duplex mode with one driver and one receiver (1/1), handling both transmit and receive paths simultaneously. The supply voltage accepts 1.8V, 2.5V, or 3.3V, allowing the PHY to match the I/O voltage of the host MAC without a separate level translator.
Package and layout: 24-QFN with exposed pad
Surface-mount assembly with tape-and-reel (TR) or cut-tape (CT) packaging is standard.
Active production and sourcing status
The part is ROHS3 compliant, meeting EU Directive 2011/65/EU.