Uploaded January 2022 | Updated September 2026, 3 weeks ago

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In this video, what is don't condition in digital circuits is explained, and using the don't care terms in the K-map, how to minimize the Boolean Function is explained using the Solved Examples.

Chapters:
0:00 What is Don't Care Condition
2:07 Example 1
4:52 Example 2
8:32 Example 3

Don't Care Condition:

In digital circuits, many times some input combinations are never used. The output for these unused input combinations is un-specified. (e.g in 8421 BCD code, the six combinations are invalid codes ). Such input combinations are known as don't care combinations and in the K-map, such don't care terms are defined by either X or d. In the K-map, these don't care terms can be used for the minimization of the Boolean Function.

In this video, through the different examples, it has been explained that how to use the don't care condition in the K-map for the minimization of the Boolean Function.

Digital Electronics (Playlist)
youtube.com/playlist?list=PLwjK_iyK4LLBC_so3odA64E2MLgIRKafl

This video will be helpful to all the students of science and engineering in understanding what is don't care condition in Digital Circuits and how to use them in the K-map during the minimization of Boolean Function.

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