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| Counter | ||||||||||||||||||
| Now use the output of the first flip-flop as the clock input of another T flip-flop: | ||||||||||||||||||
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| What will be the period of the second flip-flop output Q1? | ||||||||||||||||||
| If we keep repeating this N times, the period of the Nth output will be 2Nt | ||||||||||||||||||
| How does this help build a counter? | ||||||||||||||||||