g What property of flip-flops distinguishes them from latches? A. Flip-flops will never change state more than once per clock cycle, but latches can change state multiple times during a clock pulse. B. Latches will never change state more than once per clock cycle, but flip-flops can change state multiple times during a clock pulse. C. Latches are combinational circuits, but flip-flops are sequential circuits. D. Flip-flops are combinational circuits, but latches are sequential circuits. E. Flip-flops are faster than latches. F. Flip-flops are tastier than latches

Question

Elisha Cameron

Engineering

3 October, 20:27

g What property of flip-flops distinguishes them from latches? A. Flip-flops will never change state more than once per clock cycle, but latches can change state multiple times during a clock pulse. B. Latches will never change state more than once per clock cycle, but flip-flops can change state multiple times during a clock pulse. C. Latches are combinational circuits, but flip-flops are sequential circuits. D. Flip-flops are combinational circuits, but latches are sequential circuits. E. Flip-flops are faster than latches. F. Flip-flops are tastier than latches

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Keaton Joyce · Answer 1

A. Flip-flops will never change state more than once per clock cycle, but latches can change state multiple times during a clock pulse.

Explanation:

Even though both flip-flops and latches are sequential circuits (which means that the present outputs don't depend on the current value of the inputs and outputs but on the previous ones, so it is said that these circuits have memory), the flip-flops state changes are only valid when a clock pulse is present, which means that it can't change state more than once per clock cycle.

Latches, instead, change state no sooner a input level changes, so it doesn't need for a clock pulse to be present.