Description:  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 Interface(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).    Specification:   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.     Package included:  1 x Ethernet Network Module