Which of the given options best describes the truthfulness of the following…
2023
Which of the given options best describes the truthfulness of the following statements? i) The clock signal is required for sequential circuits. ii) In the sequential circuit, memory elements play an important role and are required.
- A.
i-True, ii-True
- B.
i-False, ii-True
- C.
i-True, ii-False
- D.
i-False, ii-False
Attempted by 206 students.
Show answer & explanation
Correct answer: A
i) The clock signal is required for sequential circuits.
True. While some asynchronous sequential circuits exist, the vast majority of practical sequential circuits are synchronous.
In these systems, a clock signal is used to trigger state changes, ensuring all memory elements (like flip-flops) update their values at the same time.
ii) In the sequential circuit, memory elements play an important role and are required.
True. The defining feature of a sequential circuit is that its output depends not only on the current inputs but also on the past history of inputs.
Memory elements (such as latches or flip-flops) are essential to store this history, which is referred to as the "state" of the system.