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design a bcd-to-excess-3 code converter with a bcd-to-decimal decoder and 4 or gates.

on 2011-03-22 22:10:39   by Shiuly   on Electronics & Communication  1 answers

Rajni

on 2011-03-27 09:30:00  

First, write out the truth table for a BCD-to-excess-3 converter. I\'ll do the first step for you. The truth table for a BCD to excess 3 converter is: 0000 -> 0011 0001 -> 0100 0010 -> 0101 0011 -> 0110 0100 -> 0111 0101 -> 1000 0110 -> 1001 0111 -> 1010 1000 -> 1011 1001 -> 1100 Then look at the output bits one by one. Find the simplest way to get them from patterns in the input bits and use the four OR gates to cover the cases you can\'t get.