For Arduino W5500 Ethernet Network Modules For Arduino TCP/IP 51/STM32 SPI Interface 3.3V 5V I/O MCU Description: 100% Brand new and high quality! Supports Hardwired TCP/IP Protocols : TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE Supports 8 independent sockets simultaneously Supports Power down mode Supports Wake on LAN over UDP Supports High Speed Serial Peripheral Interfac(SPI MODE 0, 3) Internal 32Kbytes Memory for TX/RX Buffers 10BaseT/100BaseTX Ethernet PHY embedded Supports Auto Negotiation (Full and half duplex, 10 and 100-based ) Not supports IP Fragmentation 3.3V operation with 5V I/O signal tolerance LED outputs (Full/Half duplex, Link, Speed, Active) 48 Pin LQFP Lead-Free Package (7x7mm, 0.5mm pitch) Specifications: Chip type: W5500 Supports both 3.3V & 5V. Hardwired TCP/IP Protocols : TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE 10BaseT/100BaseTX Ethernet PHY embedded Supports automatic response (full duplex / half duplex mode) Supports 8 independent sockets simultaneously Internal 32Kbytes Memory for Tx/Rx Buffers Power off mode: support Network wake: support SPI interface (SPI MODE 0, 3),convenient connection with MCU Size: 55mm x 28mm Color: Blue Package includes: