![]() Let us look at the working of a 2-bit binary ripple counter to understand the concept.Ī binary counter can count up to 2-bit values. Based on the number of flip flops used there are 2-bit, 3-bit, 4-bit…. The working of the ripple counter can be best understood with the help of an example. Ripple Counter Circuit Diagram and Timing Diagram Ripple counter which can count up to value N which is not a power of 2 is called Divide by N counter. UP-DOWN COUNTER: A counter which can count values either in the forward direction or reverse direction is called an up-down counter or reversible counter.ĭIVIDE by N COUNTER: Instead of a binary, we may sometimes require to count up to N which is of base 10. UP COUNTER: Counts the values in ascending order.ĭOWN COUNTER: Counts the values in descending order. These counters can count in different ways based on their circuitry. An n-MOD ripple counter contains n number of flip-flops and the circuit can count up to 2 n values before it resets itself to the initial value. It got its name because the clock pulse ripples through the circuit. Ripple Counter: Ripple counter is an Asynchronous counter. Here flip-flops are connected in Master-Slave arrangement. Thus, in Asynchronous counter after the transition of the previous flip flop transition of the next flip flop takes place, not at the same time as seen in Synchronous counter. ![]()
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