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Digital Edge Trigger

Last Modified: May 14, 2018

A digital edge trigger occurs when a digital signal moves from the high level to the low level, or from the low level to the high level.

A rising edge is a low-to-high transition. A falling edge is a high-to-low transition. The following figure shows a falling-edge trigger:


The Oscilloscope only supports the rising edge for digital edge triggers.

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