Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 10 (Q.No. 30)
30.
The minimal function that can detect a "divisible by 3" 8421 BCD code digit (representation D8D4D2D1) is given by
D8D1 + D4D2 + D8D2D1
D8D1 + D4D2 D1 + D4D2D1 + D8D4D2D1
D4D1 + D4D2 + D8D4 D2D1
D4D2D1 + D4D2D1 + D8D4D2D1
Answer: Option
Explanation:

Now the problem can be solved using k-map method.

The function can be expressed as Σm(0, 3, 6, 9) + d(10, 11, 12, 13, 14, 15)

K-map is

The function is

D8D4D2D1 + D4D2D1 + D4D2D1 + D8D1 .

Discussion:
Be the first person to comment on this question !

Post your comments here:

Your comments will be displayed after verification.