The KSZ9021RL is a completely integrated triple speed (10Base-T/100Base-TX/1000Base-T) Ethernet Physical Layer Transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable. The KSZ9021RL provides the Reduced Gigabit Media Independent Interface (RGMII) for direct connection to RGMII MACs in Gigabit Ethernet Processors and Switches for data transfer at 10/100/1000Mbps speed Product: Ethernet Transceivers Number of Transceivers: 1 Transceiver Data Rate: 10 Mb/s, 100 Mb/s, 1000 Mb/s Operating Supply Voltage: 1.14 V to 3.465 V Minimum Operating Temperature: - 40 C Maximum Operating Temperature: + 85 C Mounting Style: SMD/SMT Package/Case: QFN-48 Packaging: Tray Brand: Microchip Technology / Micrel Supply Current - Max: 563 mA Product Type: Ethernet ICs Standard: 10BASE-T, 100BASE-FX, 100BASE-TX Factory Pack Quantity: 260 Subcategory: Communication & Networking ICs Supply Voltage - Max: 3.465 V Supply Voltage - Min: 1.14 V Unit Weight: 150,500 mg