Question

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

Answer 1

Answer:

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.