UPC EETAC Bachelor's Degree in Telecommunications Systems and in Network Engineering EEL


Lecture 5

L2.5: Incomplete functions

The concept of incomplete function (example: water level meter)


[10/3] Minimised equations: SoP or PoS

- Don't-care inputs ("x" or "-")

- Incomplete functions: don't cares outputs

In this page on incomplete functions there is the example project of a tank level meter. In some circuit applications, not all outputs are of interest.

Another circuit that has an incomplete logic function is the BCD_decoder_1digit  represented in Fig. 1 because binary combinations from "1010" to "1111" are invalid Error output is used to signal the incorrect input situation.




As EETAC - UPC student, you can borrow books or download their electronic versions from our library. We recommend reading books on the subject to complement your class notes and get a broader view of the whole area of digital electronics.