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Quiz – Elenco Understanding Logic Gates and Circuits User Manual

Page 33

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Quiz

12. The figure below represents a full subtractor circuit. A & B are the inputs and B

i

is the

borrow input, while S is the output and C

o

is the borrow output. Complete the truth

table for the outputs of this full adder circuit.

13. Design a 4-input multiplexer circuit.

A

B

B

i

S

B

o

0

0

0

0

0

1

0

1

0

0

1

1

1

0

0

1

0

1

1

1

0

1

1

1

A
B

B

i

B

o

S

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