Digital Logic - Old Questions

11. A sequential circuit with two D flip-flops, A and B, two inputs x and y, and one output z, is specified by the following next state and output equations [4+3+3]

A(t+1) = x'y + x A

B(t +1) = x'B + x A

z = B

a) Draw the logic diagram.

b) Derive the state table.

c) Derive the state diagram.