Design a combinational circuit using a subtractor that calculat... | Filo

Subtractor Circuit – Half Subtractor, Full Subtractor, How it Works

SOLVED:(a) Design circuits for half- and full subtractors. The half-subtractor has two inputs and two outputs (DIFFERENCE and BORROW). The full subtractor has three inputs (two bits from the current stage and a BORROWIN from the previous stage) and two outputs (DIFFERENCE and BORROW). (b) Connect a half-subtractor and three full subtractors to realize the subtraction circuit for four-bit numbers.

Full Subtractor Circuit and Its Construction