Page 103 - Handout Digital Electronics

Activity

1 Complete the truth table below for the JK flip flop

C S R Q
Pr eset Clear Q
1 1 1 0 0 ? ?
0 0 1 1 0 ? ?
1 1 1 1 0 ? ?
1 0 1 1 0 ? ?
0 1 1 1 0 ? ?

2 What is wrong with the above control input combinations?

3 Do you think the Preset and Clear control signals are only useful to the S R flip flop?

Further reading and online resources

http://www.learnabout-electronics.org/Digital/dig52.php

http://www.electronics-tutorials.ws/sequential/seq_1.html

http://www.circuitstoday.com/flip-flops

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