From Makers Electronics's description

The W5500 chip is a Hardwired TCP/IP embedded Ethernet controller that provides easier Internet connection to embedded systems. W5500 enables users to have the Internet connectivity in their applications just by using the single chip in which TCP/IP stack, 10/100 Ethernet MAC and PHY embedded. The SPI to Ethernet Hardware TCP/IP W5500 Ethernet Network Module based on Ethernet WIZNET new type of chip W5500, module integrates the whole hardware TCP/IP protocol stack, no need code implements the TCP/IP protocol stack. The module Supports transmission rate of 10/100MBPS. Also, support sleep mode and wake on LAN, Within the integrated 32K TX/RX cache. SPI to Ethernet Hardware TCP/IP W5500 Ethernet Network Module has 8 independent ports run at the same time, Module supports 3.3V or 5V power supply, convenient for the user to use in the SCM system different, module and MCU system communication mode is SPI protocol. Support SPI clock frequencies up to 80M, provide STM32 and 51 SCM client, server, three modes of UDP routines. Applications: Home Network Devices: Set-Top Boxes, PVRs, Digital Media Adapters Serial-to-Ethernet: Access Controls, LED displays, Wireless AP relays, etc. Parallel-to-Ethernet: POS / Mini Printers, Copiers USB-to-Ethernet: Storage Devices, Network Printers GPIO-to-Ethernet: Home Network Sensors Security Systems: DVRs, Network Cameras, Kiosks Factory and Building Automation Medical Monitoring Equipment Embedded Servers Features: 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. W5500 Features: Supports following 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 Support Auto Negotiation (Full and half duplex, 10 and 100-based) Not support 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 Input Voltage (V) 3.3 ~ 5 Supports Hardwired TCP/IP Protocols TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE Internal Memory (KByte) 32 Length (mm) 60 Width (mm) 28 Height (mm) 17

From Micro Ohm's description

The W5500 chip is a Hardwired TCP/IP embedded Ethernet controller that provides easier Internet connection to embedded systems. W5500 enables users to have the Internet connectivity in their applications just by using the single chip in which TCP/IP stack, 10/100 Ethernet MAC and PHY embedded. The SPI to Ethernet Hardware TCP/IP W5500 Ethernet Network Module based on Ethernet WIZNET new type of chip W5500, module integrates the whole hardware TCP/IP protocol stack, no need code implements the TCP/IP protocol stack. The module Supports transmission rate of 10/100MBPS. Also, s upport sleep mode and wake on LAN, Within the integrated 32K TX/RX cache. SPI to Ethernet Hardware TCP/IP W5500 Ethernet Network Module has 8 independent ports run at the same time, Module supports 3.3V or 5V power supply, convenient for the user to use in the SCM system different, module and MCU system communication mode is SPI protocol. Support SPI clock frequencies up to 80M, provide STM32 and 51 SCM client, server, three modes of UDP routines. Applications: Home Network Devices: Set-Top Boxes, PVRs, Digital Media Adapters Serial-to-Ethernet: Access Controls, LED displays, Wireless AP relays, etc. Parallel-to-Ethernet: POS / Mini Printers, Copiers USB-to-Ethernet: Storage Devices, Network Printers GPIO-to-Ethernet: Home Network Sensors Security Systems: DVRs, Network Cameras, Kiosks Factory and Building Automation Medical Monitoring Equipment Embedded Servers Features of SPI to Ethernet Hardware TCP/IP W5500 Ethernet Network Module: 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. Package Includes: 1 x SPI to Ethernet Hardware TCP/IP W5500 Ethernet Network Module. W5500 DATASHEET: DOWNLOAD Chip type W5500 Input Voltage (V) 3.3 ~ 5 Supports Hardwired TCP/IP Protocols TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE Internal Memory (KByte) 32 Length (mm): 60 Width (mm): 28 Height (mm): 17 Weight (g): 12 Shipping Weight 0.016 kg Shipping Dimensions 12 × 9 × 4 cm

From Makers Electronics's description

W5500 TCP/IP Ethernet Network Module Compatible With WIZ820IO The W5500-TCP/IP Ethernet Network Module is a robust, fully integrated network interface designed for embedded systems requiring reliable wired connectivity. Centered around the WIZnet chip, this module implements a full hardware TCP/IP stack—covering TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPPoE—relieving the host microcontroller from network protocol complexity and boosting system reliability. Features: Built-in hardware TCP/IP protocol stack for simplified network integration. Supports TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE protocols. 8 independent hardware sockets for simultaneous connections. High-speed SPI interface up to 80MHz. Internal 32KB buffer for transmit and receive operations. Integrated 10/100 Ethernet MAC and PHY. Auto-negotiation for full/half duplex and 10/100 Mbps. Power-down mode and wake-on-LAN support. 3.3V operation with 5V tolerant I/O. LED status indicators for network activity. Compact size: 23mm x 25mm. Compatible with WIZ820IO. Specifications: Parameter Value Controller W5500 Protocol Stack TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE PHY Interface 10BaseT/100BaseTX SPI Speed Up to 80MHz SPI Modes 0–3 Internal Buffer 32KB Sockets 8 Operating Voltage 3.3V I/O Tolerance 5V PCB Size 25 × 23 mm Power Requirements ≥200 mA current draw LED Indicators Link, Speed, Activity, Duplex Pin Configuration: Applications: Internet of Things (IoT) devices. Smart home automation systems. Industrial automation and control. Networked sensors and data loggers. Web servers for embedded systems. Remote monitoring and control systems. Educational projects and prototyping. Package Include: 1x W5500 TCP/IP Ethernet Network Module Compatible With WIZ820IO. Data Sheet: W5500