What is Full Adder? Full Adder Circuit, Full Adder Truth Table

What is Full Adder?

The Full Adders are a type of digital logic circuit that is computed to perform addition. They can be thought of as the simplest possible form of the digital circuit since they perform a single function and have no internal logic. Full adders consist of sequences of the basic logic gates used in digital circuits, such as two EX-OR gates, two AND gates, and one OR gate. Full adders are the most basic building blocks in are the design of more complex digital circuits, such as processors.

Full Adder Circuit

Full Adder circuit

Diagram of  Full Adder


Full Adder Truth Table

full adder truth table


Logical Expression:

SUM = (A XOR B) XOR Cin = (A ⊕ B) ⊕ Cin
CARRY-OUT = A AND B OR Cin(A XOR B) = A.B + Cin(A ⊕ B)

People also Asked Questions?

How is Full Adder Constructed?

The Half-Adder is a basic building block of adding two numbers as two inputs and produce out two outputs.

Where is Full Adder Using?

Full Adders are used in ALU- Arithmetic Logic Unit. Full-Adders are a part of the Graphics Processing Unit for graphics-related applications.

Which IC is used in Full adder?

Here XOR gate IC 7486 and Logic AND gate IC 7408 and OR gate IC 7432 to construct the full adder circuit,

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