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Results tagged with pullup
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user 132625
A Pullup Resistor brings a line up to a voltage (Typically VCC), while allowing the line to be pulled low.
3
votes
Why are open-drain outputs needed?
Short answer: you can connect their outputs, for example to form wired logic or create busses.
The more common logic outputs, like TTL totem-pole outputs or CMOS outputs are bidirectional. (clarificat …
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