![]() ![]() When S = 1, R = 1 then the output will be Q = 0 and Q ̅=0 When S = 1, R = 1 then we will see that what will be the values of Q and Q ̅ output:Īs one of the input of both NOR gate are 1 so whatever will be the other input we will get 0 at the output. Which shows us that it worked like a memory and the bit is stored in it. ![]() S = 0, R = 0 then the output will be Q = 1 and Q ̅=0 As this output is connected with the G1 so both the input of G1 will be 0 and we will get 1 at the output of G1. Now to check again whether the output is store in it we will remove the inputs such that S = 0 and R = 0 Now again one input of G2 is one so the output of G2 will be 0. S = 1, R = 0 then the output will be Q = 1 and Q ̅=0 Now in this case the input of NOR gate G2 is 1 so when one of the input of NOR gate will be 1 its output will be 0 and as the output of G2 is connected with the input of G1, so both the inputs of G1 will be 1 due to which the output of the G1 will be 1. When S = 1, R = 0 then we will see that what will be the values of Q and Q ̅ output: Which shows that one bit is stored in it and it will work like a memory. As both the input of G2 are 0 so its output will be 1 and the output of G2 is connected with the input of G1 as one input of the G1 is 0 while the other input is 1 so the output of the G1 will be 0. So in Case 1 when S = 0, R = 1 then Q = 0 and Q ̅=1 Now to check whether this one bit is store in it or not we will remove the inputs. The output of the G1 NOR gate will be given at the input of NO gate G2 which is 0 and as the S = 0 as both inputs of the NOR gate G2 are 0 so the output of G2 will be 1. So when S = 0 and R =1 the output Q will be 0 because the input of NOR gate G1 is 1. So we will use this truth table to understand the SR latch as when one of the input is 1 the output of the NOR gate will be 0. When the S =0 and R = 1 and we will study the Q and Q ̅ outputĪs we are using NOR gate and its truth table is: A When the circuit will be reset Q value will be equal to 0 and when the circuit will be set the Q value will be equal to 1. In the circuit “R” stands for reset and “S” stand for set. Sr flip flop:- Latch is basic storage element in which we store 0 or 1. By using this table we will draw its characteristics table:.Characteristics equation for SR flip flop:. ![]()
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