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Design and simulate (you do not need to simulate if you don't have the Logisim software)...

  1. Design and simulate (you do not need to simulate if you don't have the Logisim software) a 2 bit inequality comparator that will test two 2-bit numbers for inequality. If the two numbers are not equal to each other the function should produce a high output. A portion of the truth table is shown below. As an alternative to the inequality comparator, you may design and simulate an application of your own choosing. The only constraint is that you must choose an application that has 4 input variables. You can choose something from your text or better yet, something of your own creation.

X2

X1

Y2

Y1

Output

0

1

0

1

0

0

1

1

0

1

1

1

1

1

0
  1. Determine the truth table for the function. Express the function as a product of maxterms i.e. F = PM(0,1,4,etc).
  2. Enter the POS expression from above into LogiSim. This is found under Project>Analyze Circuit. First enter names for your inputs and outputs under their respective tabs. Then click on the expression tab to enter your expression. Use ~ or ! for NOT, a & or a space for AND, and + or | for OR.
  3. Use LogiSim to automatically draw the circuit from the POS form by clicking Build Circuit. Save the schematic using the File|Export command.
engineering   Electrical-Engineering   
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Answer: Two Bit inequality comparator produce output high when the two input numbers are not equal Truth Table x2x1 Y2Y (p) oproduct of maxterims is nothing but product g sum (pus) we chave to write OR teams when the output F is equal to zero ftpm (X2 X | 12 y! KI X Y2 V (x2xW+V2+y), T > (24|t2tV1) + (x24x1+12+y) \ (X2 +1 +V2+y) dF (output) Circuit în pos format

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