Working of PSoC 4000 when VDDIO and VDDD Power at Different Voltages - KBA229037

Version 1

    Author: LinglingG_46         Version: **



    Does PSoC® 4000 work well when VDDIO and VDDD power at different voltages?



    Yes. The VDDIO pin, available in the 16-pin QFN package, provide a separate voltage domain for the following pins: P3.0, P3.1, and pins P3.2, P3.0, and P3.1 can be I2C pins; the chip can thus communicate with an I2C system, running at different voltages (where VDDIO  VDD).


    Scheme Example: