MCHPKSZ9031RNXCC

Overview

The KSZ9031RNXCC is a robust single-port 10/100/1000Mbps Ethernet transceiver featuring the Reduced Gigabit Media Independent Interface (RGMII) for direct connection to processors and FPGAs. It is designed to simplify Gigabit Ethernet implementation in cost-sensitive applications by integrating termination resistors for the differential pairs and providing flexible clocking options. This commercial temperature grade device operates with a typical 210 mA current draw during active 1000BASE-T links.

Why Choose This Part

This transceiver reduces BOM complexity through on-chip termination resistors and integrated LDO controller for single-supply operation. It features diagnostic capabilities such as LinkMD TDR-based cable diagnostics to identify open or short circuits. The RGMII interface includes programmable delay timings to ensure timing margins are met without requiring complex PCB trace length matching.

Applications

Getting Started

Engineers can evaluate this PHY using the EVB-KSZ9031RNX evaluation board which provides access to RGMII headers and RJ45 connectors. Configuration is performed via the MDC/MDIO management interface using standard IEEE 802.3 clause 22 registers. Ensure the 5.1 mm x 5.1 mm ePad is properly soldered to a ground plane for thermal dissipation and signal integrity as per Microchip layout guidelines.

KSZ9031 Family