Purpose of using Schmitt Trigger in the hardware circuit for key debouncing

Q.  What is the purpose of using Schmitt Trigger in the hardware circuit for key debouncing?
- Published on 12 Nov 15

a. Noise Elimination
b. Improvement in Noise Immunity
c. Increase in Noise Figure
d. Reduction in Noise Temperature

ANSWER: Improvement in Noise Immunity

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