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Bookmark or Share- digital logic - What is the advantage of a tri-state output ...I'm trying to understand what is the use of tri-state output and what is the advantage of using it. Below depicts both two-state and tri-state output: According to the above logic, it seems to me two-state output can only be ON or OFF. But in tri-state case, the output can be ON, OFF or floating. So to me the only difference is the floating state.
- digital logic - Implementing a CMOS TriState Inverter - Electrical ...I have been learning about CMOS Tri State inverters, and I was wondering which one of these two ways is a better implementation of this circuit. The first is what we see in all textbooks : With the middle two transistors connected to Enable (EN) and Enable bar (~EN) Or the second -
- What is the purpose of a tri-state pin in a OscillatorWhen the tri-state pin is High or not connected, the oscillator will produce its normal output. If the tri-state pin is connected to Ground, the oscillator output will be high impedance, effectively disabling the output. This is described in the second-last line of the "Standard Specifications" table.
- "Tristate a pin" - Electrical Engineering Stack ExchangeThe idea of tri-state is to allow multiple output devices to share a single bus. For example, multiple RAM/ROM chips can be connected to a data bus. Only the selected chip will have active outputs (high or low), the other chips (not selected) will have all their outputs set to the hi impedence state (the third state).
- Tri-State Detection - Electrical Engineering Stack ExchangeSince all these answers are dependent on how "tri-state" tri-state is, I am starting to think the opto-coupler method, that is more current driven, is not so bad. Something like an LDA100 is bipolar with 1mA on current and minimum 33% current transfer ratio. "Slow" though, 7/20uS. simulate this circuit – Schematic created using CircuitLab
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