Full Subtractor Block Diagram. The above block diagram describes the construction of the full subtractor circuit. The first half subtractor circuit is on the left side we give two single bit binary inputs a and b.
As we know that the half subtractor produces two outputs i e diff and borrow. Here a is minuend b is subtrahend bin is borrow in. In the case of a half subtractor a input is complemented similar things are carried out in full subtractor.
Figure below shows the truthtable of the full subtractor.
The above block diagram describes the construction of the full subtractor circuit. The first half subtractor circuit is on the left side we give two single bit binary inputs a and b. This circuit has three inputs and two outputs. The full subtractor block diagram is shown below.
