# Don't Care Condition **A particular [[Boolean function]] input condition for which behaviour is unspecified.** A **don't care condition** is a particular Boolean function input condition which is considered *impossible* or for which the output is considered *unimportant or unspecified*. Don't care conditions can be ignored or treated as any value in order to simplify truth tables of [[Karnaugh Map|Karnaugh maps]]. > [!Input condition example]+ > An example of an input condition that never occurs are the binary coded decimal input combinations $1010$ to $1111$. > > The corresponding K-map for the circuit thus would contain don't care conditions as follows: > > ![[Don'tCareConditionKMapExample.svg|500]]