MCHPLAN8720AI-CP-ABC
Overview
The LAN8720AI-CP-ABC is a high-performance, small-footprint 10/100 Ethernet physical layer transceiver (PHY) designed for industrial applications. It utilizes the Reduced Media Independent Interface (RMII) to communicate with a MAC, significantly reducing the pin count required for network connectivity. This specific variant supports an extended industrial temperature range from -40 to +85 degrees Celsius.
Why Choose This Part
It features a highly integrated design with a built-in 1.2V regulator, allowing it to operate from a single 1.62V to 3.6V supply range. The 4x4mm QFN package is ideal for space-constrained PCB layouts, and its HP Auto-MDIX support automatically corrects for crossed cables without external configuration.
Applications
Getting Started
When designing with this PHY, ensure the REF_CLK signal is clean and satisfies the strict RMII timing requirements. Microchip provides the EVB8720 evaluation board to test the transceiver, and most modern RTOS stacks like lwIP or FreeRTOS-TCP include mature drivers for the LAN8720 family.
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