Question

Which of the following statement is correct with respect to Latch?

• A. It normally samples its inputs and changes its outputs only at times determined by the clocking signal
• B. It checks all of its inputs continuously and changes its outputs accordingly at any time independent of a clocking signal
• C. It is an electronic circuit with three stable states
• D. It is a tristate device and used in memories

Hint:

Latches are level-sensitive circuits, while flip-flops are edge-sensitive, meaning they change outputs on the rising or falling edge of the clock signal.

Answer 1

The Correct Option is B

A latch is a level-sensitive device that continuously checks its inputs and changes its outputs based on the input conditions, irrespective of a clock signal. This contrasts with flip-flops, which are edge-triggered and only change state at specific clock transitions.