F05_Final_Blackboard

F05_Final_Blackboard - diagram. 6. Design a sequential...

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Name ________________________ EEGR 211 – Digital Logic Fall 2005, 9am Final Examination 1. Perform the following conversions a. 157.5 8 = ? 16 b. 63.5 7 = ? 10 c. 56.9 10 = ? 8 (to two decimal places) 2. Using the rules of two’s complement arithmetic, perform the following operations. Assume all numbers are already in two’s complement representation. Be sure to verify the validity of your answer. a. What are the rules of two’s complement arithmetic? b. 011101 2 – 000101 2 c. 011100 2 – 100101 2 d. 1011 2 – 00100 2 3. Simplify the following arithmetic functions to the minimum number of literals using Quine McCluskey . a. AB + AB’C + B’C’ b. F = Σ(5,13) + d(0,4,8,12) 4. For the circuit below, perform the following: a. Obtain an algebraic expression for the output, F b. Simplify your expression above to the minimum number of literals using Boolean Algebra 5. For the following sequential circuit, derive the state table and draw the state
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Unformatted text preview: diagram. 6. Design a sequential circuit, using JK flip-flops, that goes through the transitions shown below (D flip-flops can be used for a small penalty). Answer the following questions: a. What is the effect of the following string of inputs assuming a current state of 100: (start) 01100101 (end)? b. What is the next state of your circuit when it is state 010 and the input is 1? 7. Implement F(A,B,C,D,E) = (0,1,5,9,13,16,21,29) using two 4x16 decoders. 8. Explain the following using a paragraph and example/illustration: a. The difference between a combinational and a sequential circuit b. The difference between a PAL and PLA c. Explain to a high school student the importance of digital design Question Answer 1 /12 2 /14 3 /14 4 /14 5 /12 6 /14 7 /12 8 /8 Total /100 000 110 111 100 011 001 1 0, 1 0, 1 0, 1 1 1 2...
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F05_Final_Blackboard - diagram. 6. Design a sequential...

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