Microchip Technology, Inc. Interface - Drivers, Receivers, Transceivers KSZ9131RNXC-TR

The KSZ9131RNXC-TR is a single-chip Gigabit Ethernet transceiver designed for IEEE 802.3 applications, supporting data rates of 10/100/1000 Mbps. It features RGMII timing with on-chip delay adjustments, making it suitable for various applications requiring precise timing control. The device operates with I/O voltage tolerances of 3.3V, 2.5V, or 1.8V and includes an on-chip LDO controller for single 3.3V supply operation, requiring only one external FET to generate the necessary core voltage of 1.2V. This transceiver supports auto-negotiation for optimal link speed and duplex settings, and it can handle jumbo frames up to 16 KB. It incorporates energy-efficient features such as Energy-Detect power-down mode and Energy Efficient Ethernet (EEE) support, which includes low-power idle modes. Additional functionalities include Wake-On-LAN support, programmable LED outputs, and advanced diagnostic capabilities like LinkMD® for cable diagnostics and loopback modes. The KSZ9131RNXC-TR is packaged in a 48-pin QFN format, making it suitable for space-constrained designs. It is qualified for automotive applications under AEC-Q100 Grade 3, ensuring reliability in demanding environments. Target applications include network printers, NAS devices, routers, and automotive in-vehicle networking, making it a versatile choice for engineers looking for a robust Ethernet transceiver solution.