W5500 SPI to Ethernet TCP/IP Network Module
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Prices updated: 13 Oct 2026
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About this product
A module built around the WIZnet W5500 hardwired TCP/IP Ethernet controller, which integrates the TCP/IP stack, a 10/100 Mbps Ethernet MAC and PHY in one chip. It connects to a microcontroller over SPI, letting Arduino and other embedded projects reach the internet or a local network without implementing the protocol stack in software.
Specifications
- Chip
- WIZnet W5500
- Interface
- SPI
- Ethernet speed
- 10/100 Mbps
- Protocol stack
- Hardware TCP/IP
- Internal buffer
- 32 KB
- Power modes
- Sleep mode and Wake on LAN
Frequently asked questions
Does it work with Arduino?
Yes, through the SPI bus. Connect MOSI, MISO, SCK and a chip-select pin, plus reset if the module exposes it, and use a library that supports the W5500.
Does my code need to implement TCP/IP?
No. The W5500 handles the TCP/IP stack in hardware, so your code uses socket functions provided by the library instead of writing the protocol itself.
