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Question

The output of a sequential circuit depends on

This question was previously asked in
UGC NET 2014 Paper 1 Question Paper (28-Dec-2014)
The correct answer is

both present and past input

A combinational circuit's output depends only on its present inputs.

A sequential circuit adds memory elements (flip-flops) whose stored state summarises the past inputs.

Its output is therefore a function of both the present inputs and this stored history.

Hence, both present and past input.

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Similar Questions

  1. Consider the following statements regarding combinational and sequential circuits.

    (A) Output of combinational circuits depends on the only current input.

    (B) Output of combinational circuit depends on the both current input and previous output.

    (C) Output of sequential circuit depends on the current input.

    (D) Output of sequential circuit depends on both current input and previous output.

    Choose the correct answer from the options given below :

  2. Which of the following is a sequential circuit ?


Important Questions from Sequential Circuits

  1. The basic sequential logic building block in which the output follows the data input as long as the ENABLE input is active, is

  2. What can be the maximum clock frequency of a 10-bit ripple counter which will not cause a count to skip, considering 10 ns propagation delay for each of the edge-triggered flip flops?

  3. The output of a sequential circuit depends on

  4. The basic building block of a sequential logic circuit is

  5. A 4bit synchronous counter uses flip-flops with a propagation delay time of 25ns each. The maximum possible time required for change of state will be

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