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Asynchronous Counter

Written on July 16, 2013 – 7:28 pm | by Robin |

Asynchronous counter. The basic idea is to keep the J and K inputs of each flip fop high, such that the flip fop will toggle with any negative clock transitions at its clock input. We then use AND gates to gate every second clock to flip fop B, every fourth clock to flip fop C and so on.