Title : 
The effect of DON´T CARES on the complexity of combinational circuits
         
        
            Author : 
Spillman, Richard J.
         
        
            Author_Institution : 
University of California, Davis, CA
         
        
        
        
        
        
        
            Abstract : 
This letter provides an interesting analysis of the number of DON´T CARES required to reduce the complexity of combinational circuits. An equation relating the number of ones in the output of a combinational function and the number of DON´T CARES required to reduce circuit complexity by 10 percent is given.
         
        
            Keywords : 
Circuit analysis; Circuit synthesis; Combinational circuits; Complexity theory; Design engineering; Equations; Information theory;
         
        
        
            Journal_Title : 
Proceedings of the IEEE
         
        
        
        
        
            DOI : 
10.1109/PROC.1980.11783