IPD 准确意思 (不是集成产品开发的意思) IPD:Input with internal pull-down.IOPU:Input or Output with internal pull-up.pull-up 与 pull-down 具体怎样理解

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IPD 准确意思 (不是集成产品开发的意思) IPD:Input with internal pull-down.IOPU:Input or Output with internal pull-up.pull-up 与 pull-down 具体怎样理解
IPD 准确意思 (不是集成产品开发的意思) IPD:Input with internal pull-down.
IOPU:Input or Output with internal pull-up.
pull-up 与 pull-down 具体怎样理解

IPD 准确意思 (不是集成产品开发的意思) IPD:Input with internal pull-down.IOPU:Input or Output with internal pull-up.pull-up 与 pull-down 具体怎样理解
input with internal pull-down:带内部下拉(电阻)的输入
output with internal pull-up:带内部上拉(电阻)的输出
上拉就是将不确定的信号通过一个电阻嵌位在高电平,电阻同时起限流作用,下拉同理.