KSZ9021RN

The KSZ9021RN is a single-port Gigabit Ethernet physical layer transceiver (PHY) from Microchip Technology.

Key Features Interface Type: RGMII (Reduced Gigabit Media Independent Interface) and GMII (Gigabit Media Independent Interface) Data Rate: 10 / 100 / 1000 Mbps Ethernet Standards Compliance: IEEE 802.3, 802.3u, 802.3ab Supply Voltage: Core: 1.2 V I/O: 3.3 V Analog: 2.5 V / 3.3 V Package Type: 48-pin QFN (7 mm × 7 mm) Operating Temperature: –40 °C to +85 °C (industrial) ESD Protection: ±2 kV HBM on all pins Power Consumption: < 400 mW typical (Gigabit mode) < 180 mW typical (10/100 mode) Auto-Negotiation: Full and half-duplex operation supported Auto-MDIX: Automatic cable polarity detection and correction Jumbo Frame Support: Up to 9 KB Loopback Modes: MAC and PHY-level loopbacks for diagnostics Clock Support: 25 MHz external reference clock or crystal Power Management: Multiple low-power and energy-efficient modes (EEE – Energy Efficient Ethernet) RoHS / REACH Compliant Functional Highlights Low-latency, high-performance RGMII interface for efficient data transfer Enhanced transmit and receive signal quality through adaptive equalization Integrated voltage regulators and line termination resistors Compatible with a wide range of microcontrollers and SoCs Internal 1.2 V regulator reduces external component requirements Advanced diagnostic and status registers accessible via MDIO (IEEE 802.3 Clause 22/45) Applications Industrial Ethernet and embedded networking Network switches and routers IP cameras and media converters Automotive Ethernet applications FPGA-based network designs Hot Tags: ksz9021rn, China ksz9021rn suppliers, manufacturers