Author: LinglingG_46 Version: **
Translation - Japanese: PSoC 4000 VDDIO と VDDD 電源が異なる電圧時の動作 - KBA229037 - Community Translated (JA)
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).