Last Updated :
19 Nov, 2018
Consider the circuit given below with initial state Q0 =1, Q1 = Q2 = 0. The state of the circuit is given by the value 4Q2 + 2Q1 + Q0
![\"GATECS2001Q39\"](\"https://media.geeksforgeeks.org/wp-content/cdn-uploads/gq/2014/12/GATECS2001Q39.png\")
Which one of the following is the correct state sequence of the circuit?
(A) 1,3,4,6,7,5,2
(B) 1,2,5,3,7,6,4
(C) 1,2,7,3,5,6,4
(D) 1,6,5,7,2,3,4
Answer: (B)
Explanation:
| Initial value |
Q0 |
Q1 |
Q2 |
2Q1+4Q2+Q0 |
| clk |
1 |
0 |
0 |
1 |
| 1 |
0 |
1 |
0 |
2 |
| 2 |
1 |
0 |
1 |
5 |
| 3 |
1 |
1 |
0 |
3 |
| 4 |
1 |
1 |
1 |
7 |
| 5 |
0 |
1 |
1 |
6 |
| 6 |
0 |
0 |
1 |
4 |
So ans is (B) part.
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