View mc74hct14a datasheet:

MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC54/74HCT14A Hex Schmitt-Trigger Inverter with LSTTL Compatible Inputs High–Performance Silicon–Gate CMOS J SUFFIX CERAMIC PACKAGE The MC54/74HCT14A may be used as a level converter for interfacing 14 CASE 632–08 TTL or NMOS outputs to high–speed CMOS inputs. 1 The HCT14A is identical in pinout to the LS14. The HCT14A is useful to “square up” slow input rise and fall times. Due to the hysteresis voltage of the Schmitt trigger, the HCT14A finds applications N SUFFIX PLASTIC PACKAGE in noisy environments. 14 CASE 646–06 • Output Drive Capability: 10 LSTTL Loads 1 • TTL/NMOS–Compatible Input Levels • Outputs Directly Interface to CMOS, NMOS and TTL D SUFFIX • Operating Voltage Range: 4.5 to 5.5 V SOIC PACKAGE 14 • Low Input Cu