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Nov 7, 2023 at 13:24 comment added SteveSh No, the third state may not be "input", though it could be in a bi-di pin. A more accurate description might be output high, output low, output open, and input.
Nov 6, 2023 at 16:59 comment added Ben Voigt "You don't want the information on the bus to be read by every unit at the same time" But this is what tri-state buffers actually lead to. Because the three states are "Output Low, Output High, and Input". Removing loads from the bus is valuable, but has little to do with "tri-state output", the topic of the question.
Nov 11, 2019 at 14:45 vote accept user1999
Nov 11, 2019 at 14:09 history edited MCG CC BY-SA 4.0
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Nov 11, 2019 at 13:46 comment added MCG @user1999 It depends what you have connected to it, whether it is On/Off or Input/Output. It depends on the application. There isn't much advantage to a tri-state ON/OFF switch. As for inputs and outputs, I'll add an example to the answer
Nov 11, 2019 at 13:10 comment added user1999 @MCG You mean ON is INPUT and OFF is OUTPUT? Why do you call them as input and output? Aren't all states output? Here they call them output i.sstatic.net/LutlM.png Could you clarify that as well? And if possible where in practice is this tri state used? Can we name any ?
Nov 11, 2019 at 13:01 history edited MCG CC BY-SA 4.0
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Nov 11, 2019 at 13:00 comment added MCG @Transistor good point, I'll add that in there!
Nov 11, 2019 at 12:44 comment added Transistor "... or be disconnected and be unaffected by it" ... and to "unaffect" the bus so that effectively that component is no longer in-circuit.
Nov 11, 2019 at 12:28 history answered MCG CC BY-SA 4.0