edgetrigger
Edge trigger, or edge-triggering, refers to a property of circuits and measurement systems in which a response occurs only at the moment of a signal’s transition on a clock or timing line. In digital electronics, edge-triggered devices respond to a clock edge—rising (low to high) or falling (high to low)—rather than to the level of the clock. This makes them less sensitive to noise or glitches that may appear while the clock is in a steady state and helps ensure precise sampling of inputs.
Types of edge triggering include rising-edge and falling-edge triggering. Some devices are dual-edge triggered, reacting on
Mechanisms and design: Edge-triggered behavior is typically realized with two level-sensitive latches arranged in a master-slave
Relation to level-triggered devices: Level-triggered (or level-sensitive) circuits respond as long as a clock level satisfies
Applications and considerations: Edge-triggered elements are fundamental in timing and state machines, counters, and shift registers.