WIZ145SR-EVB is a evaluation board for WIZ145SR.

WIZ145SR is an embedded module mounting RJ-45 and is based on WIZnet W5300 & ARM Cortex-M3. WIZ145SR is the protocol converter that transmits the data sent by serial equipment as TCP/IP data type, and converts back the TCP/IP data received through the network into serial data to transmit back to the equipment. WIZ145SR is able to communicate four serial equipments at the same time by supporting 4 serial ports(3.3V LVTTL).

Hardware Specification
[WIZ145SR Module]

  • TCP/IP : W5300
  • PHY : Embedded in W5300
  • MCU : ARM Cortex-M3 (STM32F103ZCT6)
  • Ethernet Interface : RJ-45 (RB1-125BAG1A, Transformer integrated)
  • Serial : 4 UART (3.3V LVTTL)

[Base Board]

  •  Module Interface : 2×14 2.54mm, 1×14 2.54mm Pin Header (Female)
  • Serial Connector : 4 x D-SUB, 9PIN (Right Angle, Male)
  • Power : DC Jack mounted (Outer 3.5 Ø, Inner 1.35 Ø)


  • UTP LAN Cable (2M), Serial Cable, Power Adaptor
WIZ140SR/WIZ145SR Base Board Interface

WIZ140SR & WIZ145SR User’s Munual v2.0.1

  • Last Update: 2013.07.13

WIZ140SR & WIZ145SR Datasheet v0.90

  • Last Update: 2012.06.04

Firmware v1.6.5

  • Last Update: 2015.06.10
  • Update buffer management

Firmware v1.6.4

  • Last Update: 2015.01.07
  • Telnet mode is added
  • Bug fix about serial data corruption with data from ethernet
  • Bug fix with Data packing condition ‘Size’

Firmware v1.6.1

  • Last Update: 2013.11.18
  • Bug fixed : The previous firmware has error, when trying to connect to the remote server

Firmware v1.6.0

  • Last Update: 2013.08.07
  • Baud rate : 600 bps added
  • The format of Serial cmd WnBU/RnBU got changed
  • Debug message displays current network information
  • The notation of firmware version was changed to x.x.x

Firmware v1.5.2

  • Last Update: 2013.06.11
  • Bug fixed : When transmitting to WIZ140/145SR more than  8K bytes data continuously, some data is lost

Firmware v1.5

  • Last Update: 2013.04.18
  • Optimize the code by reflecting W5300 erratum4 & erratum5

WIZ140SR /WIZ145SR Configuration Tool for Windows v1.7

  • Last Update: 2015.01.07

Device Terminal Program for Windows

  • Last Update: 2015.08.05
  • Simple Configuration and Testing for WIZnet Serial to Ethernet module
Hardware Design Guide

Reference Schematic for WIZ140SR & WIZ145SR V1.0

  • Last Update: 2010.04.27

WIZ145SR-EVB (WIZ140SR-EVB) Dimension

  • Last Update: 2015.08.03