Elenco Understanding Logic Gates and Circuits User Manual download pdf (Page 40)

Quiz Answers

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

borrow input, while S is the output and Co is the borrow output. Complete the truth

table for the outputs of this full adder circuit.

A B Bi S Bo

0 0 0 0 0

0 0 1 1 1

0 1 0 1 1

0 1 1 0 1

1 0 0 1 0

1 0 1 0 0

1 1 0 0 0

1 1 1 1 1

A

B

Bi

Bo

S

40

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