Asynchronous/Ripple Counter
- Flip flops are connected in such a way that the o/p of first flip-flop drives the clock of next flip-flop.
- Flip-flops are not clocked simultaneously.
- Circuit is simple for more number of states.
- Speed is slow as clock is propagated through number of stages.
- Asynchronous Counter are also known as “Ripple Counter” because of the way the clock pulses or ripples, its way through the flip-flop.
Synchronous Counter
- There is no connection between o/p of first flip-flop and clock of next flip-flop.
- Flip-flops are clocked simultaneously.
- Circuit becomes complicated as number of states increases.
- Speed is high as clock is given at a same time.
Source :
- Neso Academy You-Tube Videos, Types of Counters | Comparison between Ripple and Synchronous counters
- Images : Google Images.
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