Determine the answers to Questions 1 and 2 by finding the logic levels present at each gate

Question:

Determine the answers to Questions 1 and 2 by finding the logic levels present at each gate output using a table as in Figure 3-16.


Figure 3-16

B O A B 1110OOO Te  Im OOOO 0000---- 0 0 0 1 0 1 1  11 1 0 1 1 1 1 lo 01100 C 00 1 1 1 L 0 1 0 0 SELE 0 0 1 1


Data from Question 1

Use the expression for x to determine the output of the circuit in Figure 3-15(a) for the conditions A = 0, B = 1, C = 1, and D = 0.


Figure 3-15(a)

ABC D A ABC A+D (a) A+D x = ABC (A + D)


Data from Question 2

Use the expression for x to determine the output of the circuit in Figure 3-15(b) for the conditions A = B = E = 1, C = D = 0.


Figure 3-15(b)A B C D E A + B (A + B)C (b) (A + B)C D+ (A + B)C x= [D+ (A + B)C] E

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Digital Systems Principles And Application

ISBN: 9780134220130

12th Edition

Authors: Ronald Tocci, Neal Widmer, Gregory Moss

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