Electronics and Communication Engineering (ECE) Exam  >  Electronics and Communication Engineering (ECE) Questions  >  A 4 bit ripple counter and a 4 bit synchronou... Start Learning for Free
A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, then
  • a)
    R = 10 ns, S = 40 ns
  • b)
    R = 40 ns, S = 10 ns
  • c)
    R = 10 ns, S = 30 ns
  • d)
    R = 30 ns, S = 10 ns
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A 4 bit ripple counter and a 4 bit synchronous counter are made by fli...
In ripple counter delay 4Td = 40 ns.
The synchronous counter are clocked simultaneously, then its worst delay will be equal to 10 ns.
View all questions of this test
Most Upvoted Answer
A 4 bit ripple counter and a 4 bit synchronous counter are made by fli...
Explanation:

Propagation delay:
Propagation delay is the time taken by a signal to travel from input to output of a flip-flop. In a ripple counter, the output of one flip-flop serves as the input of the next flip-flop, leading to cumulative delay with each flip-flop. In a synchronous counter, all flip-flops receive the same clock signal, resulting in synchronous operation.

4 Bit Ripple Counter:
A 4 bit ripple counter is made up of four D flip-flops. The output of one flip-flop is connected to the input of the next flip-flop. The clock signal is applied to the first flip-flop. The output of each flip-flop is inverted and used as the clock input of the next flip-flop. The output of the last flip-flop generates the ripple carry signal. The worst-case delay in a ripple counter is the sum of the propagation delay of all the flip-flops.

4 Bit Synchronous Counter:
A 4 bit synchronous counter is made up of four D flip-flops. All flip-flops receive the same clock signal. The output of each flip-flop is connected to the input of the next flip-flop. The worst-case delay in a synchronous counter is the propagation delay of a single flip-flop.

Given that the propagation delay of each flip-flop is 10 ns, the worst-case delay in the ripple counter is calculated as follows:

R = 4 x 10 ns = 40 ns

The worst-case delay in the synchronous counter is the propagation delay of a single flip-flop, which is 10 ns. Therefore, the correct option is B, i.e., R = 40 ns, S = 10 ns.
Attention Electronics and Communication Engineering (ECE) Students!
To make sure you are not studying endlessly, EduRev has designed Electronics and Communication Engineering (ECE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electronics and Communication Engineering (ECE).
Explore Courses for Electronics and Communication Engineering (ECE) exam

Similar Electronics and Communication Engineering (ECE) Doubts

Top Courses for Electronics and Communication Engineering (ECE)

A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer?
Question Description
A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electronics and Communication Engineering (ECE). Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free.
Here you can find the meaning of A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A 4 bit ripple counter and a 4 bit synchronous counter are made by flips flops having a propagation delay of 10 ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively, thena)R = 10 ns, S = 40 nsb)R = 40 ns, S = 10 nsc)R = 10 ns, S = 30 nsd)R = 30 ns, S = 10 nsCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Electronics and Communication Engineering (ECE) tests.
Explore Courses for Electronics and Communication Engineering (ECE) exam

Top Courses for Electronics and Communication Engineering (ECE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev