Explain the meaning of synchronous counters, Electrical Engineering

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Explain the meaning of Synchronous Counters?

In the synchronous counters the clock inputs of all the flip-flops are connected together and are triggered by the input pulses, therefore, all the flip-flops change state concurrently (in parallel). 

828_Synchronous Counters.png

The circuit underneath is a 3-bit synchronous counter and the J and K inputs of FF0 are connected to HIGH and FF1 has its J and K inputs connected to the output of FF0 and the J and K inputs of FF2 are connected to the output of an AND gate that is fed by the outputs of FF0 and FF1.


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