For the circuit in figure, determine the maximum frequency of the clock signal for reliable operation if the set-up time for each flip-flop is 2 ns and the propagation delays from clock to output are 5 ns for each flip-flop.

A D flip-flop is connected as shown in figure. Determine the Q output in relation to the clock. What specific function does this device perform?

What happens to the counter of given figure if both the up and down inputs are equal to 1 at the same time? Modify the circuit so that it will count up if this condition occurs

A D flip-flop is connected as shown in figure. Determine the Q output in relation to the clock. What specific function does this perform?

Draw a diagram of a 4-bit binary ripple down-counter using flip-flops that trigger on the (a)positive edge transition and (b)negative edge transition.