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.
这是一款2选1的USB开关,用起来不是很复杂,您提到的无法使用具体是什么?使能端OE要低电平使能,SEL控制D和D1导通还是D2导通。SEL分别为高和低电平的时候您都试试呢?