SN74LVT245B 想在控制信号DIR 上加上拉和下拉电阻,请问有没有推荐的电阻值?另外OE 想固定接地,是直接接地,还是通过一个电阻接地,电阻值推荐是多少?
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SN74LVT245B 想在控制信号DIR 上加上拉和下拉电阻,请问有没有推荐的电阻值?另外OE 想固定接地,是直接接地,还是通过一个电阻接地,电阻值推荐是多少?