Ethernet Shield Network Module – W5100 Replacement with 32KB Buffer, SPI Interface, 3.3V/5V Compatible for Arduino, STM32, 51 MCU

Ethernet Shield LAN Network Module is an upgraded, high-performance replacement for the popular W5100 module, offering enhanced features and improved stability for microcontroller-based networking applications. Based on the WIZnet W5500 chip, this module supports hardwired TCP/IP protocols (TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE) and provides a 32KB internal buffer, ensuring efficient and reliable data communication over Ethernet.

Featuring a standard SPI interface, the module is compatible with a wide range of microcontrollers such as Arduino, STM32, and 8051 (51 series). It supports both 3.3V and 5V logic levels, making it versatile for use across various development boards without the need for external level shifters.

With its robust protocol stack, large memory buffer, and efficient hardware-based packet processing, the W5500 is ideal for projects requiring stable and high-speed Ethernet connectivity.

Key Features:

Chipset: WIZnet W5500 – Hardware TCP/IP stack

Network Protocols: TCP, UDP, IPv4, ICMP, ARP, IGMP, PPPoE

Data Buffer: 32KB internal memory for optimized communication

Interface: SPI (up to 80 MHz clock speed)

Voltage Compatibility: Supports both 3.3V and 5V logic levels

RJ45 Ethernet Port: Integrated with magnetic isolation for safe and stable LAN connection

Low Power Operation: Energy-efficient design for embedded systems

Pin Header Format: Easily integrates with Arduino-style boards and breadboards