e/Don't care

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Information
has glosseng: In digital logic, a dont-care term is an input-sequence (a series of bits) to a function that the designer does not care about, usually because that input would never happen, or because differences in that input would not result in any changes to the output. By considering these dont-care inputs, designers can potentially minimize their function much more so than if the dont-care inputs were taken to have an output of all 0 or all 1. Examples of dont-care terms are the binary values 1010 through 1111 (10 through 15 in decimal) for a function that takes a BCD value, because a BCD value never takes on values from 1010 to 1111. Don't-care terms are important to consider in minimizing, using Karnaugh maps and the Quine–McCluskey algorithm.
lexicalizationeng: Don't care
lexicalizationeng: Don't-care
instance ofc/Digital circuits
Meaning
German
has glossdeu: In der Digitaltechnik bedeutet Don’t-Care, X oder -, dass dieser Wert keinen Einfluss auf die Logikschaltung hat. In der Wahrheitstabelle werden Don’t-Care-Einträge typischerweise eingesetzt um nicht alle Eingangszustände abhandeln zu müssen, oder wenn eine unvollständig definierte Funktion vorkommt, die Variable also "1" und "0" haben kann. Dies ist für bestimmte Eingangskombinationen der Fall, wenn der Ausgang für diese nicht festgelegt ist. Zum Beispiel wenn diese Eingangskombinationen in der Schaltung gar nicht möglich bzw. vorhanden sind oder bei dem Baustein über das Enable-Signal deaktiviert sind.
lexicalizationdeu: Don't-Care
Italian
has glossita: Nel campo delle reti logiche e dellalgebra booleana le condizioni di indifferenza (dont care, in inglese) sono delle configurazioni degli ingressi di una rete (o funzione) che per un qualche motivo possono venire ignorati. Ciò solitamente avviene quando gli ingressi della rete in questione sono filtrati da un circuito più a monte che per costruzione non restituirà mai il valore di indifferenza. In tal caso si dice che la condizione non è osservabile. Se invece ad essere filtrata è luscita del circuito, può avvenire che qualora si presentasse la condizione di indifferenza in input, loutput sarebbe ignorato dal resto del sistema. In questo caso si definisce non misurabile.
lexicalizationita: condizione di indifferenza
Thai
has glosstha: เทอมที่ไม่สนใจ คือค่าของตรรกะที่จะเป็น 0 หรือ 1 ก็ได้ มักใช้ในอินพุตหรือเอาต์พุตที่ไม่สนใจค่า สำหรับอินพุตที่ไม่สนใจค่านั้น เนื่องจากอินพุตนั้นจะไม่มีโอกาสที่จะเกิดขึ้น หรือการเปลี่ยนแปลงของอินพุต จะไม่ส่งผลให้เกิดการเปลี่ยนแปลงของเอาต์พุต ส่วนเอาต์พุตที่ไม่สนใจค่านั้น เนื่องจากไม่ได้ใช้เอาต์พุตเหล่านั้น
lexicalizationtha: เทอมที่ไม่สนใจ
Media
media:imgD-flipflop-dontcare.svg
media:imgDont-care karnaugh.jpg
media:imgDont-care-timing.svg

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