For an AND-OR circuit with an output expression AB + AB, determine the 1 and 0 combinations of input variables that make the output a 1. Draw the logic required for this expression. X-NOR For an ANDCR circuit with an output expression ABC + ABC + ABC, determine the 1 and 0 combinations of input variables that make the output a 1. Draw the logic required for this expression.

A 4-to-1 multiplexer is defined by the following symbol and truth table. f Si So S1 So 0 0 0 1 Wo Wo W1 W1 1 W2 W2 1 1 W3 W3 A logic circuit is implemented as below. The logic function f is the function of x1 and x0. Write the function f expression. Xo X1 So Wo f 1 W1 W2 W3 1

Design a Moore state machine with one input x, and one output y. The output is normally 0, but becomes 1 whenever the machine detects the sequence "x = 0", "x = 1", and "x = 1" on the three consecutive rising edges of the clock.  Sketch a state graph for your design. Write down the state table for your design Come up with a state assignment Find the excitation logic for D flip flips Sketch a diagram of your final design.