MadeEasy Test Series: Digital Logic - Flip Flop

Question

Comments

mod 6 counter

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how?

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Let me know if there is any mistake @Balaji Jegan

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I think mod 6 counter.

What's answer given ???

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Isn't the Input always 111?

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Yes input is always 1 because of which the bits are getting toggle.

But before the input gets into the flipflop the initial values will be zeroes across all FF outputs.

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yes ans is mod6

Answer 1

Least Significant Flip Flop is connected to external clock. So, A is Least significant bit(LSB).

And next flip flop's clock is connected to previous ff's output and so on.

Now, clear (Cr bar) connected to all flip flops and input from NAND gate.

When NAND Gate output will be 0 then only clear will be set and all flip flops set to 0.

NAND gate will be 0 if and only if B=1, C=1

So,  C B A

        1 1 0 =6 

MOD 6 Counter.