2 BIT ADDER AND FULL ADDER

 2 BIT ADDER

TRUTH TABLE

Inputs

OUTPUTS

A0

B0

A1

B1

S2

S1

S0

1

0

0

0

0

0

0

0

2

0

0

0

1

0

1

0

3

0

0

1

0

0

1

0

4

0

0

1

1

1

0

0

5

0

1

0

0

0

0

1

6

0

1

0

1

0

1

1

7

0

1

1

0

0

1

1

8

0

1

1

1

1

0

1

9

1

0

0

0

0

0

1

10

1

0

0

1

0

1

1

11

1

0

1

0

0

1

1

12

1

0

1

1

1

0

1

13

1

1

0

0

0

1

0

14

1

1

0

1

1

0

0

15

1

1

1

0

1

0

0

16

1

1

1

1

1

1

0

FULL ADDER

TRUTH TABLE


CIN

A

B

COUT

SUM

0

0

0

0

0

0

1

0

0

1

0

0

1

0

1

0

1

1

1

0

1

0

0

0

1

1

1

0

1

0

1

0

1

1

0

1

1

1

1

1

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