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Experiment 9 - The Synchronous 2-bit Counter

Take a look at the circuit diagram. The clock inputs of the flip-flops are connected directly to Data IN. The output Q0 of the first flip-flop is connected to the T input of the second flip-flop...

Circuit diagram synchronous 2-bit counter.

Illustration states of a 2-bit synchronous counter.

Each time you press the pushbutton switch S1, the counter counts up from 00 (decimal 0) to 11 (decimal 3), before it falls back to 00.

Circuit synchronous 2-bit counter. (Enlarge)

Thus you have constructed a synchronous 2-bit counter...

In the next experiment you are trying to build a synchronous n-bit counter, by expanding the chain...