Item Type: Ethernet Networks Module_x000D_Material: PCB_x000D_Purpose: Suitable for operation learning and development of college students, engineers, technicians, factories, DIY, electronic enthusiasts, etc._x000D_Simultaneous Support: 3.3V & 5V_x000D_Support Hard-Wired TCP/IP Protocol: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE_x000D_10BaseT/100BaseTX Ethernet PHY Embedded System_x000D_Automatic Response (full duplex/half duplex mode): Support_x000D_8 Independent Sockets at the Same Time: Support_x000D_Internal 32Kbytes memory for Tx/Rx buffer_x000D_Shutdown Mode: Support_x000D_Wake on LAN: Support_x000D_Interface: for SPI interface (for SPI MODE 0.3) to facilitate the connection with the microcontroller_x000D_for SPI Clock Frequency Maximum: 80M_x000D_Size: Approx. 55 x 28mm/2.2 x 1.1in_x000D_Pin Definition:_x000D_Pin HeaderFunction DescriptionPin HeaderFunction Description_x000D_3.3V3.3V power input pin 5V5V power input pin_x000D_ MISOfor SPI master input slave output pin GNDPower ground pin_x000D_ MOSIfor SPI master output slave input pin RSTW5500 hardware initialization pin (active low)_x000D_ SCSfor SPI SLAVE selection pin (active low) INTW5500 interrupt pin (active low)_x000D_ SCLKfor SPI clock pin NCSuspend 1The module integrates the full hardware TCP/IP protocol stacks, no codes is required to implement the TCP/IP protocol stacks. 2Support 10/100MBPS transfer rate, support sleep mode and wake on networks. 3The internal integrated 32K TX/RX buffer, supports 8 independent ports to run simultaneously. 4The module supports 3.3V or 5V power supply, which is convenient for users to use in different microcontroller systems. 5The communication method between the module and the microcontroller system is for SPI protocol, which supports for SPI clock frequencies up to 80M.1 x Ethernet Networks Module