We've got 1 definition »

What does I²C stand for? 

What does I²C mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: I²C.

Filter by: Sort by:PopularityAlphabeticallyCategory

Inter-Integrated Circuit


Rate it:

What does I²C mean?

I2C (Inter-Integrated Circuit, eye-squared-C), alternatively known as I2C or IIC, is a synchronous, multi-master/multi-slave (controller/target), packet switched, single-ended, serial communication bus invented in 1982 by Philips Semiconductors. It is widely used for attaching lower-speed peripheral ICs to processors and microcontrollers in short-distance, intra-board communication. Several competitors, such as Siemens, NEC, Texas Instruments, STMicroelectronics, Motorola, Nordic Semiconductor and Intersil, have introduced compatible I2C products to the market since the mid-1990s. System Management Bus (SMBus), defined by Intel in 1995, is a subset of I2C, defining a stricter usage. One purpose of SMBus is to promote robustness and interoperability. Accordingly, modern I2C systems incorporate some policies and rules from SMBus, sometimes supporting both I2C and SMBus, requiring only minimal reconfiguration either by commanding or output pin use.

see more »

Discuss these I²C abbreviations with the community:


    Know what is I²C? Got another good explanation for I²C? Don't keep it to yourself!

    Still can't find the acronym definition you were looking for? Use our Power Search technology to look for more unique definitions from across the web!


    Use the citation options below to add these abbreviations to your bibliography.


    "I²C." Abbreviations.com. STANDS4 LLC, 2024. Web. 13 Jul 2024. <https://www.abbreviations.com/I%C2%B2C>.

    Browse Abbreviations.com

    Free, no signup required:

    Add to Chrome

    Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!

    Free, no signup required:

    Add to Firefox

    Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!


    The ultimate acronym test

    A Idiopathic Care Unit
    B Idiopathic Cystitis Ultrasound
    C Intensive Care Unit
    D Incremental Cost-Utility


    Share an image of I²C


    Hearing impaired tip:

    Sign language

    How do you say I²C in ASL sign language fingerspelling?