The W5500 chip is a Hardwired TCP/IP integrated Ethernet controller that makes it easier for embedded systems to connect to the Internet. W5500 allows customers to integrate Internet access into their applications using a single chip that includes a TCP/IP stack, a 10/100 Ethernet MAC, and a PHY.
The W5500 is ideal for consumers that require reliable internet connectivity, as it combines TCP /IP Stack, 10/100 Ethernet MAC, and PHY on a single chip, TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE are all supported by the hardwired TCP/IP stack, which has been demonstrated in several applications over the years. The data transmission memory of the W5500 is a 32Kbyte internal buffer.