W5500 Ethernet Network Module Hardware TCP/IP Protocol SPI Interface LAN Ethernet Shield Board For Arduino STM32 IoT Project

W5500 Ethernet Network Module

📌 Product Overview The W5500 Ethernet module adopts W5500 hardware TCP/IP controller chip with built‑in complete hardware TCP/IP protocol stack, MAC and PHY layer. It is not necessary for MCU to process complex network protocols, greatly reducing the development difficulty of embedded network projects. Equipped with 32KB high‑speed buffer for network data transmission and reception, it supports 8 independent hardware sockets for simultaneous communication. Communicate with the main control chip through the high‑speed SPI interface up to 80MHz. It supports 3.3V / 5V power supply, compatible with STM32, 51 and other single‑chip microcomputer systems. With RJ45 network port and working status indicator LED, it is a cost‑effective embedded Ethernet expansion solution. ✨ Core Features

• On‑board W5500 hardware TCP/IP Ethernet chip, LQFP48 package
• Built‑in full hardware protocol stack: TCP, UDP, IPv4, ICMP, ARP, IGMP, PPPoE
• 10/100Mbps adaptive Ethernet transmission rate
• 32KB built‑in memory for transmit‑receive buffer
• Support 8 independent hardware sockets for multi‑connection communication
• SPI communication interface, the highest clock frequency reaches 80MHz
• Support sleep mode and network wake‑up function
• Working voltage: 3.3V, compatible with 5V power supply system
• With link and activity indicator LED for network status observation
• Provide Client, Server, UDP sample code for STM32 & 51 MCU

📋 Product Parameters

Item	Specification
Chip Model	W5500
Chip Package	LQFP48
Working Voltage	3.3V
Typical Operating Current	128mA
Transmission Buffer	32KB
Number of Independent Sockets	8
Communication Interface	SPI (Max 80MHz)
Network Rate	10 / 100 Mbps
Dimension	55mm × 28mm
Net Weight	12.5g
Supported Protocols	TCP, UDP, IPv4, ICMP, ARP, IGMP, PPPoE

📐 Dimension Info PCB size: 55mm × 28mm Net weight: 12.5g W5500‑LITE mini version size: 25mm × 23mm ⚠ Important Usage Notice

1. The module core chip works at 3.3V, do not directly connect high‑voltage power to avoid chip burnout.
2. Stable power supply is required for high‑speed data transmission.
3. Actual communication speed is affected by MCU SPI speed and program optimization.
4. This product only provides hardware module and open‑source routine reference, without customized technical development support.

🛠 Application Scenarios Embedded network data transmission, industrial Ethernet control, remote data monitoring, network relay equipment, STM32 single‑chip network development, Internet of Things equipment, DIY network acquisition system