How do you design a MOD counter?

  1. Introduction :
  2. Design for Mod-N counter :
  3. Step 1 : Decision for number of flip-flops –
  4. Step 2 : Write excitation table of Flip flops –
  5. Step 3 : Draw state diagram and circuit excitation table –
  6. Circuit excitation table –

What is synchronous counter design?

Synchronous counters are easier to design than asynchronous counters. They are called synchronous counters because the clock input of the flip-flops. are all clocked together at the same time with the same clock signal. Due to this common clock pulse all output states switch or change simultaneously.

How many flip-flops are needed for Mod 16?

Number no. of flip – flops are required to construct a mod-16 counter, must satisfy: 2n ≥ 16 i.e. Win over the concepts of Sequential Circuits and get a step ahead with the preparations for Digital Electronics with Testbook.

What is a 4-bit synchronous counter?

A 4-bit Synchronous up counter start to count from 0 (0000 in binary) and increment or count upwards to 15 (1111 in binary) and then start new counting cycle by getting reset. Its operating frequency is much higher than the same range Asynchronous counter.

What is a mod 6?

The “mod 6” means that we are working only with the remainders of numbers after division by 6, and not really working with the integers at all. Note that this word “mod” is different from the modulus operator used in programming languages. Even though “4+3 = 1 mod 6” in English is true, “4+3 == 1%6” in C is false.

How many total states a mod 32 counter has?

For a mod 32 counter, 32=2^5. So 5 flip-flops are required. The meaning of Mod -10 is that the number of states will be 10 which means it will be from 0-9 and if we talk about Mod-16 it will be from 0-15.

How to design a Mod-6 synchronous up counter?

Design a Mod-6 synchronous up Counter. Step 1: Find the number of flip flops. Mod-6 counter represents that the counter will have 6 states. Thus, N =6. The number of flip-flops used for counter design is determined using the formula, 2n ≥ N. By trial and error method, the value of n is found to be 3. That is the number of flip-flops, n = 3.

How to design a MOD-12 counter?

As already seen in previous examples, we should follow similar steps and hence a mod-12 counter can be designed as: Step 1: The number of flip-flops required to design a mod-12 counter can be calculated using the formula: 2n >= N, where n is equal to no. of flip-flop and N is the mod number.

What is a synchronous counter?

The synchronous counter uses the same clock signal from the same source and at exactly the same time. Generally, it is constructed using either JK flip flop or T flip flop.

What is 4-bit synchronous down counter?

A 4-bit Synchronous down counter start to count from 15 (1111 in binary) and decrement or count downwards to 0 or 0000 and after that it will start a new counting cycle by getting reset. In synchronous down counter, the AND Gate input is changed.