Lab 4

OBJECTIVE

TO VERIFY THE TRUTH TABLE OF FULL ADDER AND SUBTRACTOR

APPARATUS REQUIRED

1. Connecting wires

2. Breadboard kit

3. IC 7408(AND Gate)

4. IC 7486(XOR Gate)

5. IC 7432(OR Gate)

CIRCUIT DIAGRAM OF FULL ADDER

Full Adder

TRUTH TABLE OF FULL ADDER

Inputs			Outputs
A	B	Cin	Sum	Carry
0	0	0	0	0
0	0	1	1	0
0	1	0	1	0
0	1	1	0	1
1	0	0	1	0
1	0	1	0	1
1	1	0	0	1
1	1	1	1	1

CIRCUIT DIAGRAM OF FULL SUBTRACTOR

Full Adder

TRUTH TABLE OF FULL SUBTRACTOR

Inputs			Outputs
A	B	Bin	Difference	Borrow
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

RESULT

The truth table of Full Adder and Full Subtractor are verified successfully.