LAN8720AI-CP-TR Ethernet Transceiver Chip QFN-24

Description

LAN8720AI-CP-TR Ethernet Transceiver Chip QFN-24

The LAN8720A is a low-power 10/100 Mbps Ethernet physical layer transceiver (PHY) with the following specifications:

• Interfaces: RMII (Reduced Media Independent Interface)
• Operating Voltage: 3.3V
• Power Consumption: Low-power design with power-saving modes
• Speed: Supports 10 Mbps and 100 Mbps Ethernet
• Auto-Negotiation: Supports full-duplex and half-duplex modes
• Package: 24-pin QFN or LQFP
• Operating Temperature: -40°C to +85°C
• Applications: Ideal for embedded Ethernet systems such as IoT, industrial, and consumer devices.
• Datasheet

It is widely used in microcontroller-based Ethernet solutions.

To get started with the LAN8720A Ethernet PHY:

1. Connect to a Microcontroller: Use the RMII interface to connect the LAN8720A to a compatible microcontroller (e.g., ESP32 or STM32). Ensure proper wiring for TX, RX, MDC, and MDIO.
2. Power Supply: Provide 3.3V for the LAN8720A.
3. Crystal Oscillator: Use a 25MHz crystal for clock input.
4. Configure Software: Initialize the Ethernet stack in your microcontroller firmware. For example, use an ESP32 Ethernet library or STM32 HAL library.
5. Test Connectivity: Connect an Ethernet cable to the RJ45 jack and test communication.