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W5500

W5500 is a Hardwired TCP/IP stack internet controller chip with WIZnet technology, which provides easy internet connectivity to an external MCU via an SPI interface of up to 80MHz. This chip is a one-chip solution with an embedded 10/100 Ethernet MAC and PHY, and it supports various protocols like TCP, UDP, and IPv4. Furthermore, it provides 8 independent SOCKETs and 32KB of internal memory, enabling the development of Ethernet applications simply by using the SOCKET program. It also reduces power consumption through WOL (Wake on LAN) and a Power Down Mode.

Block Diagram
w5500_block_diagram
Pin Map
5500_pin_map

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)

Documentation​

datasheet​

TitleDescriptionNotes
link W5500 Datasheet (EN)
link W5500 Datasheet (KR)		Technical specifications and features of the W5500 chip-

Technical Documents​

TitleDescriptionNotes
link spi-performance--

Software Resources​

Driver​

ResourceDescription
link ioLibrary_DriverOfficial WIZnet driver library for W5500 and other chips
link ioLibrary_Driver_BSDOfficial WIZnet driver library for W5500 and other chips
info

The ioLibrary_Driver is an MCU-independent library for WIZnet W5x00, W6x00 chips . It provides implementations of essential TCP/IP services, enabling developers to build network applications with minimal MCU dependencies.

Supported services​

DHCP, DNS, MQTT, SNTP, TFTP, HTTP Server

Hardware Resources​

Technical Resources​

ResourceDescriptionNotes
link Reference Schematic (Ext.)External Transformer schematicIncludes recommended circuit design
link Reference Schematic (RJ45)RJ45 with Transformer schematicIncludes recommended circuit design
link SCH & PCB LibraryTBD-
link Design GuideTBD-

Test & Certification​

ResourceDescriptionNotes
link ESD TestConfirmation of ESD Test-
link Ethernet Compliance TestTBD-
link Distance TestTBD-
link EMC TestTBD-
link Reliability TestTBD-
link CertificateTBD-

Evaluation Boards​

W5500-EVB-Pico

W5500-EVB-Pico

W5500-EVB-Pico is a microcontroller evaluation board based on the Raspberry Pi RP2040 and fully hardwired TCP/IP controller W5500 – and basically works the same as Raspberry Pi Pico board but with additional Ethernet via W5500.

W5500-EVB-Pico-PoE

W5500-EVB-Pico-PoE

W5500-EVB-Pico-PoE is a microcontroller evaluation board based on the Raspberry Pi RP2040 and fully hardwired TCP/IP controller W5500 – and basically works the same as Raspberry Pi Pico board but with additional Ethernet via W5500.

w5500-evb-pico2

W5500-EVB-Pico2

W5500-EVB-Pico2 is a microcontroller evaluation board based on the Raspberry Pi RP2350 and the fully hardwired TCP/IP controller W5500 enhancing the capabilities of the traditional Raspberry Pi Pico2 board with additional Ethernet functionality via W5500.