Questions tagged [digital-input]
4 questions
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6 answers
Do all logic circuits have to have negligible input current?
There are common configurations where, for example, a logical HIGH input (a voltage source) is connected to the input of some logic circuit through a resistor as shown there. Typically this logic circuit is represented as a diagram, without…
Sgg8
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Are there digital buffer circuits that prevent power bleed through when not powered but input is high?
I have a TSX0102 level converter that is powered with local power. I'm running a UART through the TSX0102. The problem is I can't connect a serial to USB converter to the TSX0102 when the board is powered down because it pulls the input high and…
Voltage Spike
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How to determine the signal direction in Altium Schematic?
I have 5 signals as digital input. We can think of them as a simple button. They hook up to PCB via a connector on the card and I want to show them as a port in the Schematic. How can I determine their signal directions as correct?
I think drawing…
bcdyzi
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4 answers
How does a 0 as a binary input work if it is given by off?
In electronic circuits, for binary operations we use on as 1 and off as 0. Like in the data transmitted through fiber optic cables is sent using light going on and off. How can an output be generated with a 0 input being given by no…
