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Tribhuvan university CSIT 2074 Syllabus Digital Logic Old Questions 2075

Digital Logic - Old Questions

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Syllabus Notes Old Questions Unit Wise Questions Question Bank

7. Design a combinational circuit with three inputs, x, y, and z, and three outputs, A, B, and C. When the binary input is 0, 1, 2, or 3, the binary output is one greater than the input. When the binary input is 4, 5, 6, or 7, the binary output is one less than the input.

5 marks
Asked in 2075

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Truth Table that defines the required relationship between inputs and outputs:

Map for output A:

Map for output B:

Map for output C:

Now, Drawing Logic Diagram  for A, B & C: