Editing Runt pulse

{{Short description|A narrow pulse that does not reach a valid high or low level (Digital electronics).}}
{{one source|date=July 2024}}
In [[digital circuit]]s, a '''runt pulse''' is a narrow [[Pulse (signal processing)|pulse]] that, 
due to non-zero [[rise time|rise]] and [[fall time|fall]] times of the signal, does not reach a valid 
high or low level.  A runt pulse may occur when switching between 
[[wikt:asynchronous|asynchronous]] [[Clock signal|clocks]]; or as the result of a [[race condition]] in which a signal takes two separate paths through a circuit, which may have different delays, and is then recombined to form a [[glitch]]; or when the output of a [[Flip-flop (electronics)|flip-flop]] becomes [[Metastability in electronics|metastable]].

== Example ==
Some [[oscilloscope]]s provide a method for triggering on runt pulses.  The oscilloscope triggers when the signal crosses one of two voltage [[Threshold voltage|thresholds]], but not both.<ref name="Tektronix">{{cite web
|publisher=Tektronix
|title=Oscilloscope triggering
|url=http://www.tek.com/Measurement/cgi-bin/framed.pl?Document=/Measurement/scopes/selection/trigger.html&FrameSet=oscilloscopes
|access-date=2008-05-20
|archive-date=2011-09-28
|archive-url=https://web.archive.org/web/20110928113849/http://www.tek.com/Measurement/cgi-bin/framed.pl?Document=%2FMeasurement%2Fscopes%2Fselection%2Ftrigger.html&FrameSet=oscilloscopes
|url-status=live
}}</ref>

== References ==
{{reflist}}


[[Category:Digital electronics]]