WIZ850io is an compact-sized network module that includes W5500(TCP/IP & Ethernet MAC & PHY) & MAG-JACK (RJ45 with X’FMR) with other glue logics. As it is hardware compatible with WIZ820io, you can easily replace the WIZ820io with WIZ850io just by updating the firmwware.

Key Features
  • Plugin Network Module.
  • Hardware compatible with WIZ820io.
  • Usable without H/W design for W5500, Transformer & RJ45.
  • Fast evaluation for W5500 & MCU in the target board.
  • Support high speed SPI interface.
  • Support power down mode and Wake-on-LAN function
  • Very small form factor : 23mm x 25mm x 18mm
  • 1 x 6, 2.54mm Pin Header x 2
Pin Assignment

WIZ850io Documents

  • Latest Information about WIZ850io
  • Hardware Pins
  • SPI Operation
  • Timing Diagram
  • Block Diagram & Schematic
  • Dimension

WIZ850io Hardware Guide

  • WIZ850io Schematic
  • WIZ850io Dimension


  • AX1 Loopback Test Program, Install version