What is a Full Adder?
Full Adder is a Digital Logic circuit that can add three inputs and give two outputs i.e. three inputs such as A, B, and input carry as Cin, and gives a sum output and carry output i.e. two outputs. A Full Adder Circuit performs as the brain of most Digital Logic Circuits that execute addition or subtraction. Full adders are used in multiplexers and Demultiplexers to choose and course information.
A Full Adder requires the use of nine NOR gates. The Arithmetic Logic Unit, ALU uses Full Adders. In a computer, Full Adders are utilized by the ALU to produce memory addresses and relocate the Program Counter to the next instruction.
Now, Here we will understand Full Adder by Block Diagram of Full Adder where we will discuss and explain it by using :
- Truth Table of Full Adder
- Logical Expression for Full Adder
Implementation of Full Adder using NOR Gates
In Digital Logic Circuit, Full Adder is a Digital Logic Circuit that can add three inputs and give two outputs. The three inputs A, B, and input carry as Cin. Cout is represented as output carry and Sum is represented as output. We can say Cout is called the majority 1’s detector, when more than one input is high (logic 1) then its output will be high.
In Digital Logic Circuits, Full Adders are implemented using digital logic gates such as OR gate, AND gate, NOT gate, NAND gates, NOR gates, etc. In this article, we will explore Full Adders, and NOR Gates and execute the Implementation of Full Adders using NOR Gates.
Table of Content
- Full Adder
- Block Diagram of Full Adder
- Applications of Full Adder
- NOR Gate
- Applications of NOR Gate
- Implementation