ROHM Semiconductor - ROHM Co., Ltd.

ROHM FAQ

FAQ's

Is it a problem to Pullup the SCL and SDA lines of the I²C interface to 3.3V if DVDD=1.8V?
- 3.3V as the pull up source is acceptable even if DVDD is 1.8V. But NVCC_I2C of the I²C domain in SoC should be 3.3V (the same voltage as the pull up source for PMIC) and DVDD in PMIC always needs to be 1.8V.