Worksheet No. 8

No. 1 Draw the logic diagram, truth table, and the waveform for a three flip-flop serial counter that uses JK master slave flip-flops sensitive to positive clock transition.

No. 2 Determine the number of possible states in a counter composed of the following number of flip-flops:

a) 5
b) 8
c) 11

No. 3 Draw the logic diagram, truth table, and waveforms for a two flip-flop serial counter operating in the count down mode.

No. 4 Design the internal logic circuit for the 7448 (seven segment decoder for the common cathode indicator).

No. 5 Sketch the logic circuit for the following seven segment indicators:

a) common cathode type
b) common anode type