74HC 14 is a high-speed CMOS device, and its pins are compatible with low-power Schottky TTL(lstl) series. 74HC 14 has implemented six Schmitt-triggered inverters according to JEDEC standard no. 7a. 74hc 14, which can convert slowly changing input signals into clear jitter-free output signals.

It is mainly used for signal shaping, and it is a low-power cmos circuit, which is compatible with TTL signals.