Do an open-drain or open-collector output pins can supply V without external pullup?

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wereiyou

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Does an open-drain or open-collector ouput pin can supply Vol if external pullup is not added? ---- have got the answer


One more new question: Do I need to add two pullups to both side of the buffer if I connected a open-drain or open-collector signal to that buffer?
 

interesting problem?

HI

I don't think so. It shouldn't.

Sal
 

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