74HC14D,653 NEXPERIA Hex Inverter IC (SOIC-14)

A signal coming from a mechanical switch, a long wire run, or a noisy sensor often doesn't have the clean, fast transition a digital circuit expects, and feeding it straight into logic can cause erratic double-triggering. The 74HC14's Schmitt-trigger inputs fix that by only switching output state at two separate, well-spaced thresholds, squaring up a sluggish or noisy edge into a clean digital transition, with six of these inverter gates available on this one genuine Nexperia SOIC-14 chip for a finished surface-mount PCB design.