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The truth table for an S-R flip-flop has how many VALID entries?(a) 1(b) 2(c) 3(d) 4The question was asked in quiz.My doubt is from Flip Flops topic in chapter Flip-Flops of Digital Circuits |
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Answer» RIGHT choice is (c) 3 For explanation I would say: The SR flip-flop actually has three inputs, Set, Reset and its current state. The Invalid or UNDEFINED State OCCURS at both S and R being at 1. |
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