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Draw the truth table & excitation table for S-R Flip flop (4m)
types of flip flops • 1.8k  views
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SR Flipflop

The SET-RESET flip flop is designed with the help of two NOR gates and also two NAND gates. These flip flops are also called S-R Latch.

Truth Table

S R Q(t+1)
0 0 Q(t)
0 1 0
1 0 1
1 1 Invalid inputs

Characteristic Equation

Q(t+1) = R'(t)Q(t) + S(t) ; S(t)R(t) = 0

Excitation Table

Q(t) Q(t+1) S R
0 0 0 x
0 1 1 0
1 0 0 1
1 1 x 0
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