Consider the circuit diagram. The output Q0 is connected via a NOT gate with the input Data IN of the second T flip-flops...
Circuit diagram of a 2-bit counter. |
Illustration states of a 2-bit synchronous counter. |
Each time you press the pushbutton switch S1, the 2-bit-counter counts from 0 to 3, before it falls back to 0. The result is displayed as a binary number by Q0 and Q1.
In the circuit you are using the already inverted output Q0'...
Circuit 2-bit counter with JK Flip-Flop. (Enlarge) |
Circuit diagram of a 2-bit counter II |
A 2-bit counter is also often referred to as modulo-4 or mod-4 counter...
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modulo-x Counter A counter is referred to as a modulo-x counter or mod-x counter, as it passes through x different counts before it newly starts counting again. |
In the next experiment, you build a 4-bit or mod-16 counter...
