1、It is an Ethernet module that integrates a full hardware TCP/IP protocol station. 2、o need to write Ethernet low-level codeto implement TCP/IP protocol station, support TCP, UDP, IPv4, ICMP, ARP, IGMP and PPPoE protocols, support 10/100MBPS transmission rate, support sleep mode and network wake-up 3、Internally integrate 32K bytes of on-chip cache for Ethernet packet processing. 4、Support 8 independent port to work simultaneously 5、Support 5V or 3.3V power supply, convenient for users to use different MCU systems, the communication mode between module and MCU is Serial Peripheral Interface protocol Features: 1. It is an Ethernet module that integrates a full hardware TCP/IP protocol station. 2. No need to write Ethernet low-level codeto implement TCP/IP protocol station, support TCP, UDP, IPv4, ICMP, ARP, IGMP and PPPoE protocols, support 10/100MBPS transmission rate, support sleep mode and network wake-up 3. Internally integrate 32K bytes of on-chip cache for Ethernet packet processing. 4. Support 8 independent port to work simultaneously 5. Support 5V or 3.3V power supply, convenient for users to use different MCU systems, the communication mode between module and MCU is Serial Peripheral Interface protocol 6. Supports rates up to 80MHz Specification: Condition: 100% Brand New Chip Type: W5500 Both 3.3V and 5V are Supported. Supports Hard-Wired TCP/IP Protocols: TCP, UDP, ICMP, Ipv4, ARP, IGMP, PPPoE Support 8 Independent Sockets at the same time Support Shutdown Mode Support For Waking Up UDP on the Lan Support For High-Speed Serial Peripheral Interfaces (Serial Peripheral Interface Mode 0, 3) Internal 32Kbytes of Memory For TX/RX Buffers 10BaseT/100BaseTX Ethernet Physical Layer Embedded Support For Automatic Response (Full Duplex And Half Duplex, Based on10 and 100) IP Fragmentation is not Supported 3.3V Operation With 5V I/O Signal Tolerance LED Output (Full/Half Duplex, Link, Speed, Activity) 48-Pin LQFP Lead-Free Package (7x7mm, 0.5mm Pitch) Color: Blue Size: Approx. 55 * 28mm / 2.2 * 1.1in Package List: 1 * Ethernet Network Modules