Data Flip-Flop (DFF, falling edge triggered)

C D Ps Ns0 X Q Q1 X Q Q1?0 D X D

Only time DFF changes state is on a CLOCK EDGE. This DFF is falling edge triggered. Changes state to whatever the D value is.

D

Q

C

Q’

C is the clock input. D input is only sampled at a clock edge.

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