Hex Logic IC Schmitt Trigger Inverter, 14 Pins, SOIC - 

The 74LV14D is a low-voltage Si-gate CMOS device provides six Inverting buffers with Schmitt-trigger input. The device is pin and function compatible with 74HC14 and 74HCT14. The device is capable of transforming slowly-changing input signals into sharply defined, jitter-free output signals. The 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 VH.