Full Subtractor Circuit. It is a basic electronic device used to perform subtraction of two binary numbers. This circuit has three inputs and two outputs.
We ll use the same modeling style to design the full subtractor. This type of circuit can be built using various logic gates. The three inputs a b and bin denote the minuend subtrahend and previous borrow respectively.
Generally the full subtractor is one of the most used and essential combinational logic circuits.
In the earlier article already we have given the basic theory of half adder a full adder which uses the binary digits for the computation. The main purpose of this circuit is to perform subtraction operations on the binary numbers. The two outputs are the difference a b c and borrow. On the other side we get two final output diff difference and borrow out.