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Experiment 17 - The Counter III

Circuit Diagram Clock.

The circuit diagram shows you the structure of the clock. It is composed of two NOT gates, a capacitor and a resistor. How it exactly works is not imortant at this point. Importantly, it provides a periodic clock signal with a frequency of about 1 Hertz.

Now the circuit adds every second a 1 to the stored value and does this tirelessly from 0 to 15 over and over again.

Circuit Counter with Clock. (Enlarge)

For now it is enough on counter. Next, you have a look at shift registers.
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