Q18

MSQ1 mark

Consider the circuit shown below where the gates may have propagation delays. Assume that all signal transitions occur instantaneously and that wires have no delays. Which of the following statements about the circuit is/are CORRECT?

(A)

With no propagation delays, the output $Y$ is always logic Zero

(B)

With no propagation delays, the output $Y$ is always logic One

(C)

With propagation delays, the output $Y$ can have a transient logic One after $X$ transitions from logic Zero to logic One

(D)

With propagation delays, the output $Y$ can have a transient logic Zero after $X$ transitions from logic One to logic Zero

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