Description
This compact up down counter enables you to count from 0 to 99 in Up as well as Down mode at any instant of counting. This digital counter is suitable for many applications such as clock generator, frequency meters etc.
The circuit uses Up/Down counter IC1 & IC2 and BCD to seven segment decoder IC3 & IC4. The clock circuit and Up/Down switching is designed using four NOR gate IC5. Two 7-segment displays in common cathode configuration are used to display the count.
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