Decade counter in tamil |Digital Electronics|

Decade Counter Circuit Basics

Decade counter is very common in today’s electronics. The most commonly available IC CD7490 contains multiple flip flops to convert BCD to decimal and is incorporated as part of larger integrated circuits.

A BCD counter counts in a sequence of ten and then returns back to zero after the count of nine.

Note: Decade counter is also known as BCD Counter.
Basically, counters can be implemented quite easily using register-type circuits. Besides the decade counter, there are various other counters that are also used regularly.

Decade Counter
The basic BCD (Decade) counter is an electronic circuit with a 4-bit binary output and an input signal (called a clock). With each clock pulse the outputs advance to the next higher value, resetting to 0000 when the output is 1001 and a subsequent clock pulse is received. Decade counters are used in clock circuits, frequency dividers, state machines, and sequencers, just to name a few applications.

What is a decade counter used for?
Decade counters are used in a variety of applications where a large number of counts are needed, but space or power constraints prevent the use of a larger counter. Some common applications for these counters include frequency division, pulse generation, and digital display systems.

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