Full Adder Truth Table and Circuit diagram
Full Adder Truth Table and Circuit diagram Tutorial tells you how full adder circuit works. Full Adder is a circuit is a very important digital circuit which is used in every electronics devices and digital circuits.
Actually, Full Adder is designed to overcome the drawbacks of Half Adder. Full Adder is a circuit that adds 3 bits A and B .Cin is Carry which is denoted by Cin. So Full adder has three columns which are A, B, and Cin.
Above is a block diagram of Full Adder which shows that it has 3 inputs C(in) is a carry input and generates two outputs Sum (s) and Carry(c).
When A and B both are zero and Cin is also zero then Sum(S) and Cout both are zeros.
When Cin is One and A and B are zeros then only Sum(S) generate 1 and Cout become zero.
Truth Table shows that A,B and Cin is input and S and C outputs. As we know that if we have 3 input then a combination of inputs are eight (8) .When A,B and C are zero inputs then S and C are zero outputs. In last if A,B and C are one then S and C are one because 1+1+1=3 which binary is 1 and 1 .1 is the sum and 1 carries.
In the above diagram, XOR generates Sum output and three AND Gates and one OR Gate generate Carry output.
Below is a video tutorial of Full Adder in Digital Electronics watch this video understand this and share to your friends and other people.