The circuit given in Figure 4-52 is to be redesigned to cut its cost. (a) Find the

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The circuit given in Figure 4-52 is to be redesigned to cut its cost.

(a) Find the state table for the circuit and replace the state codes with single- letter identiiers. States 100 and 111 were unused in the original design.

(b) Check for and combine equivalent states.

(c) Make a state assignment such that the output is one of the state variables.

(d) Find the gate- input costs of the original circuit and your circuit, assuming that the gate- input cost of a D lip- lop is 14. Is the cost of the new circuit reduced?

Figure 4-52:

X Clock Reset Y3 Y  Y3 Y3- Y- D Y Y3 FD D D D C R C R C R Y b-Y -Y 6-Y b-Y N -Z

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Related Book For  answer-question

Logic And Computer Design Fundamentals

ISBN: 9780133760637

5th Edition

Authors: M. Morris Mano, Charles Kime, Tom Martin

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