This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

奇怪!I2C电平转换 电压倒灌问题!

Other Parts Discussed in Thread: PCA9517, TCA9517

左边的电平是1.8V,右边3.3V_I2C我都没上电了,为什么还会影响我的右边电压?目前右边R240和241还输出0.8V   电源电压3.3V_I2C变化为0.8V,严重影响了上电波形!应为我的1.8V最先上电,导致3.3V还没上电,就出现一段阶梯0.8V电压!大家有遇到吗?