what is BCD? why we use BCD?
What is excess-3?
truth table of BCD to excess 3
circuit diagram of excess 3.
Size: 590.32 KB
Language: en
Added: Jul 23, 2014
Slides: 6 pages
Slide Content
Mahady Hasan B.Sc. in CSE (reg ) Student Id : 130302017 Presentation topics: Bcd to excess 3 converter
BCD to Excess 3 Code Converter Specification: BCD to Excess-3 code converter Transforms BCD code for the decimal digits to Excess-3 code for the decimal digits Excess-3 code words for digits 0 through 9: 4-bit patterns obtained by adding 3 (binary 0011) to each BCD code input
BCD to Excess 3 Code Converter Formulation : In the form of a truth table: Variables BCD: A,B,C,D Excess-3: W,X,Y,Z Don’t Cares: BCD 1010 to 1111
BCD to Excess 3 Code Converter Optimization Using 16 block K-map B C D A 1 3 2 4 5 7 6 12 13 15 14 8 9 11 10 1 1 1 1 X X X X X X 1 B C D A 1 3 2 4 5 7 6 12 13 15 14 8 9 11 10 1 1 1 1 X X X X X X 1 B C D A 1 3 2 4 5 7 6 12 13 15 14 8 9 11 10 1 1 1 1 X X X X X X 1 B C D A 1 3 2 4 5 7 6 12 13 15 14 8 9 11 10 1 1 1 X X X X X X 1 1 w z y x
BCD to Excess 3 Code Converter Start with SOPs (2-level) from the K-maps : Circuit Diagram : A B C D W X Y Z