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Consider a clocked sequential circuit as shown in the figure below. Assuming initial state to be Q1 Q0 = 00
For an input sequence X = 1010, the respective output sequence will be _______.

4 Answers

1 votes
1 votes
It is coming 1010(from X=0(LSB) to 1(MSB))
0 votes
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Output is Y = (MSB) 0011 (LSB)

0 votes
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Answer is 1011

D1

D0

Q1

Q0

Output Y

Q1 XOR X Q0 XOR Q1 0 0 X'Q1'+Q0'
when x=0, 0 xor 0 = 0 0 xor 0 = 0 0 0 1
when x=1, 0 xor 1 = 1 0 xor 0 = 0 1 0 0
when x=0, 1 xor 0 = 1 0 xor 1 = 1 1 1 1
when x=1, 1 xor 1 = 0 1 xor 1 = 0 0 0 1

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