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.

TCA9554 INT无法上拉至高电平

Other Parts Discussed in Thread: TCA9554

在使用io扩展芯片TCA9554时,供电电压为2V,当INT的外接上拉电阻为10k时,INT脚的高电平输出低于0.2v,外接1k上拉电阻的时候高电平可以达到1.9V,两种上拉电阻下低电平输出正常,这里为什么外接10k电阻时int的电平无法拉高?