Full-Subtractor

Written on April 29, 2015 – 5:05 pm | by Robin |

Full subtractor is a combinational circuit capable of performing subtraction on two bits namely
minuend and subtrahend. It accepts three inputs: minuend, subtrahend and a borrow bit. It produces two outputs: difference and borrow. The borrow output tells whether the minuend bit needs to borrow a binary bit 1 from the next higher minuend bit or not.