Question

A combination circuit is specified by the following Boolean functions listed below. h(a, b, c) = b,c' + a'c Implement the circuit with a 3x8 decoder. Provide truth table and drawing the logic/circuit diagram. Use the block diagram for the decoder provided in Figure A4 in supplements. Please label the inputs and outputs clearly. Note: use single 3x8 decoder Question 2 (15 points] A priority encoder is an encoder circuit that includes the Truth Table of a priority function. The operation of the priority encoder is such that if two or more inputs are equal to 1 at the sameDO time, the input having the highest priority will take precedence. The truth table of a priority encoder is given. 1 Design this priority encoder circuit and draw the circuit diagram. Please use Karnaugh map to simplify your circuit and write down intermediate steps Encoder 01 D2 Question 3 [15 points] Design a sequential circuit with two JK flip-flops A and B and one input x: When x-0, the circuit goes through A and B invert. Please provide state diagram, state table, and input equations. (note: you do not need to draw a circuit diagram) the state transitions 00-> 01-> 11、10-> 00, when x=1, both Question 4 [15 points] A sequential circuit has two rising edge triggered T flip-flops A and B, one input x, and one output The circuit is described by the following flip-flop input and output equations: 1) Draw the logic diagram of the circuit. 2) Derive the state table. 3) If the initial state is 01, and the input sequence is 10010110, what is the output sequence? Continue on Back)

Answer 1

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