COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
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Detailed explanation-1: -How many types of the counter are there? Explanation: Counters are of 3 types, namely, (i)asynchronous/synchronous, (ii)single and multi-mode & (iii)modulus counter. These further can be subdivided into Ring Counter, Johnson Counter, Cascade Counter, Up/Down Counter and such like. 5.
Detailed explanation-2: -The counter is classified into synchronous and asynchronous counters. The difference between the synchronous and asynchronous counter can be identified according to the flip-flops that are triggered.
Detailed explanation-3: -There are many types of Asynchronous/ripple counters like Up counter, Down counter, Ripple Up/Down Counter, and Ripple BCD counter. Up counter: Ripple counter starts the count from 0 to maximum range n. n depends upon the number of FFs used.
Detailed explanation-4: -An asynchronous counter is one in which the flip-flops within the counter do not change states at exactly the same time because they do not have a common clock pulse. Operation: A 2-Bit Asynchronous Binary Counter Fig1-1 shows a 2-bit counter connected for asynchronous operation.