A D FF is sometimes used to delay a binary waveform so that the binary information appears at the output a certain amount of time after it appears at the D input.

(a) Determine the Q waveform in Figure 5-92, and compare it with the input waveform. Note that it is delayed from the input by one clock period.

(b) How can a delay of two clock periods be obtained?

Figure 5-92

Input data Clock 1 HIRD 0 CLK Q *Assume tu(min) = 0 Output data