WIZ145SR is an embedded module 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.

  • Serial to Ethernet Module based on W5300 & Cortex-M3
  • Pin-header & RJ-45 mounted module
  • Serial signals : TXD, RXD, RTS, CTS, GND signals (4 UART/RS-232C)
  • Support the configuration method of AT command & Configuration tool program
  • 10/100Mbps Ethernet & Max.115.2kbps serial speed
  • Support WIZ VSP (Virtual Serial Port) program
Hardware Specification
  • Pin Header Connector Type : 2.5mm Pitch (1×14 & 2×14)
  • Dimension (mm) : 48.3 x 61.4 x 24.7
  • Input Voltage : 3.3V
  • Max. Power Consumption : 250mA
  • Operation Temperature : 0 ~ 70℃
  • RoHS, SVHC Compliant
  • Configuration Tool for Windows
  • WizVSP: Virtual Serial Port (COM port) for User’s Programs
Pin Assignment

WIZ140SR & WIZ145SR User’s Munual v2.0.1

  • Last Update: 2013.07.13

WIZ140SR & WIZ145SR Datasheet v1.1.0

  • Last Update: 2020.11.17

Firmware v1.7.0

  • Last Update: 2021.04.20
  • Update buffer management

Firmware v1.6.8

  • Last Update: 2019.03.29
  • Update buffer management

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 & Testing for WIZnet Serial to Ethernet modules

WIZVSP Program for Windows

  • Last Update: 2017. 04. 28
  • Virtual Serial COM Port program: It can be used to change the device that is connected to the PC through the existing serial interface to control by the remote Ethernet network.
  • If you agree with the End User License Agreement for WIZVSP, you will be able to download the program and get a registration key. When registering the product with license agreement, the MAC address of the product in use and the email address of the contact person are required.
Hardware Design Guide

Reference Schematic for WIZ140SR & WIZ145SR V1.0

  • Last Update: 2010.04.27