The data storage device which can be constructed using two NAND gates or two NOR gates is the multiplexer. encoder. J-K flip-flop. S-R flip-flop. The input combination that drives the output of a NOR gate S-R flip flop to D = 1 and D^bar = 0 is _______. S = 0, R = 1 S = 1, R = 1 S = 0, R = 0 S = 1, R = 0 The waveforms below represent the inputs to a S-R flip-flop. During which time interval(s) will the Q output of the flip-flop be LOW? 1 2 2 and 3 4 The waveforms below represent the inputs to a gated S-R flip-flop. During which time interval(s) will the Q output of the flip-flop be HIGH? 2 3 1 3 and 4