A MOD-N respond to is additionally dubbed a divide by N respond to as the input frequency is separated by the variety of claims of the counter.
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For a respond to via ‘n’ flip flops:The total variety of states = 2n (0 to 2n – 1)The biggest number that can be stored in the respond to = 2n – 1
To construct a counter with any kind of MOD number, the minimum number flip flops required must satisfy:
Modulus ≤ 2n
Where n is the variety of flip-flops and also is the minimum worth satisfying the over problem.
We are forced to construct a respond to which divides the input frequency by 40, i.e. we call for a MOD-40 counter.
Number no. of flip – flops are compelled to construct mod-40 counter, have to satisfy:
2n ≥ 40
The minimum worth of n satisfying the above is:
n = 6 bits
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More Flip-Flop Questions
Q1. The outputs Q and also Q̅ of the master-servant SR flip-flop are linked to its R and also S inputs respectively. The output Q once clock pulses are used will be:
Q2. Which flip-flop is provided to make all types of change register?
Q3. Which of the adhering to flipflops does not have a problem of race condition?
Q4. The one input RS flip flop is the ______ flip flop
Q5. A Flip Flop is a oscillator.
Q6. In a positive edge triggered JK flip-flop, a low J and a low K produces :
Q7. If a JK FF toggles more than once in the time of one clock cycle, it is called_______
Q8. In the J-K flip-flop, we have actually J = Q̅ and also K = 1 as displayed in the figure:Assuming the flip-flop was initially cleared and then clocked for 6 pulses, the sequence at the Q output will certainly be
Q9. What does the complying with flip flop configuration does ?
Q10. A 1 MHz clock is applied to a J-K=1. What is the frequency of the Flip Flop O/P signal?
More Sequential Circuits Questions
Q1. The minimum variety of JK flip-flops compelled to construct a synchronous respond to with the count sequence (0, 0, 1, 1, 2, 2, 3, 3, 0, 0, …) is __________
Q2. Consider a carry lookahead adder for including two n-little bit integers, developed making use of entrances of fan-in at a lot of 2. The time to percreate enhancement utilizing this adder is
Q3. We desire to style a synchronous counter that counts the sequence 0-1-0-2-0-3 and also then repeats. The minimum variety of J-K flip-flops compelled to implement this counter is _______.
Q4. The next state table of a 2-little bit saturating up-respond to is provided below.Q1Q0(Q_1^+)(Q_0^+)0001011010111111The counter is built as a synchronous sequential circuit using T flip-flops. The expressions for T1 and also T0 are
Q5. Consider a combination of T and D flip-flops associated as shown below. The output of the D flip-flop is connected to the T flip-flop and also the output of the T flip-flop is connected to the input of the D flip-flop.Originally, both Q0 and also Q1 are set to 1 (before the 1st clock cycle). The outputs
Q6. In a J-K flip flop, as soon as Jn = 0 and also Kn = 1, the output Qn + 1 will certainly have a value of:
Q7. The dynamic hazard trouble occurs in:
Q8. A 32 little adder is developed by cascading 4 bit carry look ahead adder. The gate delays (latency) for gaining the amount bits is:
Q9. Consider the sequential circuit displayed in the figure, where both flip-flops used are positive edge-triggered D flip-flops.The variety of states in the state change diagram of this circuit that have a transition backto the exact same state on some worth of “in” is _____.
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Q10. An n stage ripple respond to deserve to count up to
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More Digital Logic Questions
Q1. Which among following is not a logic gate?
Q2. Which form of gate can be supplied to add 2 bits?
Q3. D flip flop can be made from a J-K flip flop by making
Q4. In a hexadecimal mechanism the radix is:
Q5. The output of the adhering to combinational circuit is F.The value of F is:
Q6. The decimal depiction of the binary number (101010.011)2 is
Q7. A combinational logic circuit that is used once it is wanted to send data from two or even more source via a single transmission line is well-known as _________.
Q8. The depiction of the value of a 16-little unsigned integer X in hexadecimal number system is BCA9. The depiction of the value of X in octal number device is
Q9. The full adder CKT adds. ______ digit at a time
Q10. If a JK FF toggles even more than once during one clock cycle, it is called_______
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