Ethernet ICs

Ethernet Integrated Circuits (ICs) are semiconductor devices used to enable Ethernet communication in embedded systems, networking equipment, and computers.

Common Types:

• PHY (Physical Layer) ICs: Handle analog signaling over Ethernet cables (e.g., DP83848, LAN8720)
• MAC + PHY Controllers: Combine data link and physical layer functions (e.g., ENC28J60, W5500)
• Embedded Ethernet Controllers: Built into MCUs (e.g., STM32Fxx, ESP32, NXP LPC)

Key Features:

• Support for 10/100 Mbps or Gigabit Ethernet
• Interfaces: MII, RMII, RGMII
• Low power modes and energy-efficient Ethernet (EEE)
• Integrated magnetics (in some packages)

Applications:

Industrial control, IoT gateways, routers, switches, smart meters, and embedded web servers.