Question
What is a characteristic of a monostable multivibrator?
Answer Options
- A) It switches temporarily to an alternate state for a set time
- B) It produces a continuous square wave
- C) It stores one bit of data
- D) It maintains a constant output voltage, regardless of variations in the input voltage
Correct Answer: A
Explanation
A monostable multivibrator (or one-shot multivibrator) is a timing circuit that, unlike the astable type, has one stable state and one unstable state. It is used as a pulse stretcher or delay generator in digital systems.
Its key characteristic is that it switches temporarily to an alternate state (the unstable state) for a set time when triggered by an input pulse, and then automatically returns to its original stable state. The duration of the pulse generated is precisely determined by the value of a timing resistor and capacitor within the circuit, making it ideal for creating specific time delays or pulse widths.
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