Which of the following input sequences for a cross-coupled R-S flip-flop realized with two NAND gates may lead to an oscillation ?
(A)
11, 00
(B)
01, 10
(C)
10, 01
(D)
00, 11
Answer: (D)
Explanation:
RS flip flop using NAND gates. So, 00 input causes indeterminate state which MAY lead to oscillation.
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