In
computing and digital logic, there is a great need for a device that is known
as Digital
Counter. This is device stores and sometimes displays the time of a
particular event. Basically, it finds wide applications in digital electronics
in order to count the pulses. To make the concept of more clear, let’s have a
look at some of the important daily life examples of counting. An AC timer and
an alarm clock that we use every day are the best examples of the counter. This
counting device also used in various Analog to Digital converters.
The
indicator light of the motorbikes itself is an example of a counter. Thus, it
can be said that the area of counters is really vast in digital electronics and
everyday life.
Types of Digital Counters
- Synchronous counter
- Asynchronous Counter or Ripple Counter
- Cascaded counter
- Decade Counter
- Ring counter
- Johnson counter
- Modulus counter
- Up/Down Counter
Let’s
learn more about the two most important type of Digital
counter in a brief manner:
Asynchronous Counter:
In the process of the asynchronous counter, there will be no use of the
universal clock. The only first flip flop will be driven by the main clock. The
output is free from the clock signal in the asynchronous counter. As the flip
flops in these counters are given with the different clock signals, there may
be a delay in the production of output. The logic gates needed to design
asynchronous counters are very less therefore they are considered simple in
design.
Synchronous Counter:
In this counter, the synchronous signals will occur at the same clock rate and
all the clocks will follow the same reference of the clock. It can be seen in
different converters and timers. The entire flip flops are triggered simultaneously
by the clock input pulses. In addition to this, there will be no propagation
delay in the synchronous counter as all the flip-flops are in a parallel clock
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