I2C Tools Downloads, Updates, and Manuals
USB-to-I2C Professional
USB-to-I2C Professional V8.3 Software Installation Package
for 64-bit versions of Windows
Updated January 2020
This is the full installation package for USB-to-I2C Pro and USB-to-SPI Pro. Please uninstall previous version before installing this software. It is fully compatible with hardware versions 3, 4, and 5.
USB-to-I2C Pro V8.3 Installation for 64-bit Windows
USB-to-I2C Professional Product Manuals
USB-to-SPI Software Manual
Updated August 2017
USB-to-I2C DLL User’s Manual
Updated August 2017
USB-to-I2C Hardware User’s Manual
Updated August 2017
USB-to-I2C Software Manual
Updated August 2017
USB-to-I2C Elite
USB-to-I2C Elite V8 Software Installation
Updated June 2019
Version 8 should only be used with 64-bit versions of Windows XP, Vista, Windows 7, Windows 8, or Windows 10. This is the full installation package for USB-to-I2C Elite and USB-to-SPI Elite. Please uninstall any previous versions before installing this software.
USB-to-I2C Elite V8 Installation for 64-bit Windows
USB-to-I2C Elite Documentation
USB-to-I2C Elite DLL User’s Manual
Updated February 2013
USB-to-I2C Elite Software Manual
Updated August 2017
USB-to-I2C Elite Hardware User’s Manual
Updated February 2013
USB-to-SPI Elite Software Manual
Updated August 2017
Firmware Update
We are now shipping firmware version 2.3. Please send an email to us with your serial number and we will send you the update file. The firmware update is only available for hardware loaded with firmware version 2.0 and later. See the Hardware User’s Manual for the firmware update procedure.
USB-to-I2C Ultra
for 64-bit versions of Windows
Updated December 2019
This is the full installation package for USB-to-I2C Ultra. Please uninstall previous version before installing this software.
USB-to-I2C Ultra V8.3 Installation for 64-bit Windows
USB-to-I2C Ultra Product Manuals
USB-toI2C Ultra Software Manual
Updated March 2018
USB-to-I2C Ultra DLL User’s Manual
Updated July 2018
USB-to-I2C Ultra Hardware User’s Manual
Updated July 2018
USB-to-SPI Ultra Software Manual
Updated April 2018
Win-I2CUSBDLL
Win-I2CUSBDLL V8 Software Installation Package
for 64-bit versions of Windows
Updated January 2020
This is the complete installation package for Win-I2CUSBDLL, including the Win-I2CUSB I2C application, Win-SPIUSB application, and DLL. Please uninstall previous version before installing this software. It is fully compatible with hardware versions 3, 4, and 5.
Win-I2CUSBDLL Installation for 64-bit Windows
Win-I2CUSBDLL Product Manuals
Win-I2CUSB Software Manual
Updated February 2011
Win-I2CUSB DLL User’s Manual
Updated February 2011
Win-I2CUSB Hardware User’s Manual
Updated February 2011
Win-SPIUSB Software Manual
Updated Febuary 2011
USB-to-I2C Basic
USB-to-I2C Basic v1.1 Software Download
USB-to-I2C Basic Installation for Windows
USB-to-I2C Basic Product Manuals
Getting Started
USB-to-I2C Basic Software User’s Manual
USB-to-I2C Basic Hardware User’s Manual
I2C and SPI Translator/Level Shifter
Hardware User’s Manual Updated 2019
LPT-to-I2C SE Professional
LPT-to-I2C SE Professional DLL User’s Manual Updated November, 2008
LPT-to-I2C SE Professional Hardware User’s Manual Updated November, 2008
LPT-to-I2C SE Professional Demonstration This is non-functional demonstration software that does not require an installation package (no drivers required). You can use it to review the capabilities of the software. Updated November, 2008
LPT-to-I2C SE Professional Update v4 To obtain the full installation for version 4, send an email to support@i2ctools.com. Please provide your serial number and operating system.