Nxp 74hc series logic devices nxp 74lv14d 112 the 74lv14d provides six inverting buffers with schmitt trigger input it is capable of transforming slowly changing input signals into sharply defined jitter free output signalsthe inputs switch at different points for positive and negative going signals the difference between the positive voltage vt and the negative voltage vt is defined as the input hysteresis voltage vhthe 74lv14 is a low voltage si gate cmos device that is pin and funct