W5500 IC-5500 CTLR 3-1 ETH TCP/IP 48LQFP WIZNET The W5500 is a high-quality product offering IC-5500 CTLR 3-1 ETH TCP/IP 48LQFP WIZNET. With a shrink ratio of N/A and -40°C~+85°C operating temperature, it provides reliability in various applications.