Experiment 1: Getting Familiar With R-S Flip-flops (40 points) Let\'s first work

Question

Experiment 1: Getting Familiar With R-S Flip-flops (40 points) Let's first work with an R-S flip-flop, so we can be able to store a single data bit. SR flip- flop circuit provides feedback from both of its outputs back to its opposing inputs and is commonly used in memory circuits Here is a circuit Diagram of an SR Flip Flop using NAND gates. First set up this circuit on your breadboard with input S and R and output Q and Q' (representing Q next or next state) to be able to answer the following questions. S (set) Before turning on the power make sure input S-1 and input R-1 Questions/Observations What happens when R goes to 0 and back to 1? What happens when S goes to 0 and back to 1? What happens if you repeat any one of these operations? (E.g. S goes to 0 and back to 1 and then to 0 and back to 1 again.) What happens when you make S and R both 0 at the same time?

Explanation / Answer

S | R | output Qn | function

0 | 0 | Qn-1 | no change( i.e o/p remains same as was in the previous state so it depends on the o/p of previous state)

0 | 1 | 0 | Reset(i.e output is reset to 0)

1 | 0 | 1 | Set(i.e output is set to 1)

1 | 1 | ? | no particular output because of continuous toggling.

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