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Sheet#1

1. Given the input waveforms in Figure applied to an active-HIGH S-R latch.

a. Draw output waveform Q.b. Draw Q if the same input is applied to an active-Low S-R latch.

2. For a gated S-R latch. Determine the Q and Q outputs for the inputs in Figure.

Show them in proper relation to the ena!le input. "ssume that Q starts L#$.

3. %wo edge-triggered S-R flip-flops are shown in Figure. If the inputs are as shown.

Draw the Q output of each flip-flop relative to the cloc& and e'plain the difference

!etween the two. %he flip-flops are initiall( R)S)%.

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4. For a positive edge-triggered - flip-flop with inputs as shown in Figure/

determine the Q output relative to the cloc&. "ssume that Q starts L#$.

5. %he following serial data are applied to the flip-flop through the "0D gates as indicated

in figure. Determine the resulting serial data that appear on the Q output. %here is one

cloc& pulse for each !it time. "ssume that Q is initiall( 1 and that ,R) and 2LR are

HIGH. Rightmost !its are applied first.J 1 : *1*11 **/ J 2 : 1***1*1/ J 3 : ****111

K 1 : 111***1/ K 2 : **1**11/ K 3 : *1*1*1*

6. Determine the Q waveform relative to the cloc& if the signals shown in Figure are applied

to the inputs of the - flip-flop. "ssume that Q is initiall( L#$.

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7. " D flip-flop is connected as shown in Figure. Determine the Q output in relation to the

cloc&. $hat specific function does this device perform4

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