What is the use of cascaded counters?
Cascaded counters are used to divide a high-frequency clock signal to obtain a highly accurate pulse frequency.
The cascade is the larger counters that can be built by combining smaller counters together.
What are the counters?
A counter is a sequential circuit with 0 inputs and n outputs. Thus, the value after the clock transition depends only on old values of the outputs.
For a counter, the values of the outputs are interpreted as a sequence of binary digits (see the section on binary arithmetic). We shall call the outputs o0, o1, …, on-1.
The value of the outputs for the counter after a clock transition is a binary number which is one plus the binary number of the outputs before the clock transition.
We can explain this behavior more formally with a state table. As an example, let us take a counter with n = 4. The left side of the state table contains 4 columns, labeled o0, o1, o2, and o3. This means that the state table has 16 rows. Here it is in full
What is cascaded counter?
A counter circuit is usually constructed of a number of flip-flops connected in cascade. Counters are a very widely used component in digital circuits, and are manufactured as separate integrated circuits and also incorporated as parts of larger integrated circuits.