What is a ripple counter explain the working of mod 8 counter?
Ripple counter is a special type of Asynchronous counter in which the clock pulse ripples through the circuit. The n-MOD ripple counter forms by combining n number of flip-flops. The n-MOD ripple counter can count 2n states, and then the counter resets to its initial value.
Which type of counter is fastest in operation?
2. Synchronous Counter is faster than asynchronous counter in operation. Asynchronous Counter is slower than synchronous counter in operation.
How does ripple counter work?
A ripple counter is an asynchronous counter where only the first flip-flop is clocked by an external clock. All subsequent flip-flops are clocked by the output of the preceding flip-flop. Asynchronous counters are also called ripple-counters because of the way the clock pulse ripples it way through the flip-flops.
What is the function of the ripple counter?
A counter is basically used to count the number of clock pulses applied to a flip-flop. It can also be used for Frequency divider, time measurement, frequency measurement, distance measurement and also for generating square waveforms.
How many FFS are needed in a mod-8 ring counter and a mod-8 Johnson counter?
eight flip-flops
For example, a mod-8 ring counter requires eight flip-flops and a mod-16 ring counter would require sixteen flip-flops.
Which type of counter gives ripple effect?
asynchronous counter
It is also known as MOD n counter. It is known as ripple counter because of the way the clock pulse ripples its way through the flip-flops. Some of the features of ripple counter are: It is an asynchronous counter.
Is ripple counter asynchronous?
The asynchronous counter is also called a ripple counter. For the design of the asynchronous counter, T flip-flops are used. Because the output toggles in T flip-flop.
How does a 8 bit ripple counter work?
8-Bit Ripple Counter This circuit is a 8-bit binary ripple counter. All the JK flip-flopsare configured to toggle their state on a downward transition of their clock input, and the output of each flip-flop is fed into the next flip-flop’s clock. So, when each bit changes from 1 to 0, it “carries the one” to the next higher bit.
How does a MOD-8 counter work?
A mod-8 counter stores a integer value, and increments that value (say) on each clock tick, and wraps around to 0 if the previous stored value was 7. So, the stored value follows a cycle: 000 001 010 011 100 101 110 111
How to choose the flip-flop for a ripple counter?
While choosing the type of flip-flop it should be remembered that Ripple counters can be designed only using those flip-flops which have a condition for toggling like in JK and T flip flops. The circuit arrangement of a binary ripple counter is as shown in the figure below. Here two JK flip flops J0K0 and J1K1 are used.
What is an asynchronous ripple counter?
Ripple Counter: Ripple counter is an Asynchronous counter. It got its name because the clock pulse ripples through the circuit. 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.