5PCS W5500 Ethernet Network Modules TCP/IP 51/STM32 SPI Interface 3.3V 5V I/O MCU Microcontroller Program over W5100

80MHz high-speed SPI interface<br> Built-in hardware TCP/IP protocol stack, requiring almost no knowledge of complex network protocols from the user<br> Supports up to 8 socket connections<br> Supports TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPPoE protocols<br> Integrates data link layer and physical layer<br> Supports power-down wake-up<br> Supports high-speed serial peripheral interface (SPI mode 0~3)<br> Internal 32KB transmit/receive buffer<br> Embedded 10BaseT/100BaseTX Ethernet physical layer (PHY)<br> Supports auto-negotiation (10/100-Based full-duplex/half-duplex)<br> Does not support IP fragmentation<br> 3.3V operating voltage, 5V withstand voltage for I/O signals<br> LED status display (full-duplex/half-duplex, network connection, network speed, activity status)<br> Ultra-small pin-type package, convenient for embedded applications<br> Product Features:<br> Power supply: 3.3V external power supply, current should be greater than 200mA<br> Control interface: 3.3V TTL level, SPI interface; 2*single row pins<br> Color: Blue<br> Material: PCB+Metal<br> Package Contents:<br> 5 * W5500 Ethernet network module<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.