This part is a kind of semiconductor called 74HC2G14GW.
Function of this product has Inverting Schmitt-triggers.
Manufacturers : Philips
Image and pinout :

Some of the text within the PDF file :
INTEGRATED CIRCUITS DATA SHEET 74HC2G14; 74HCT2G14 Inverting Schmitt-triggers Preliminary specification 2003 May 1 Philips Semiconductors Preliminary specification Inverting Schmitt-triggers FEATURES • Wide supply voltage range from 2.0 to 6.0 V • High noise immunity • Low power dissipation • Balanced propagation delays • Unlimited input rise and fall times • Very small 6 pins package. APPLICATIONS • Wave and pulse shapers for highly noisy environments • Astable multivibrators QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf ≤ 6.0 ns. DESCRIPTION 74HC2G14; 74HCT2G14 • Monostable multivibrators • Output capability: standard. The 74HC2G/HCT2G14 is a high-speed Si-gate CMOS device. The 74HC2G/HCT2G14 provides two inverting buffers with Schmitt-trigger acti [ ... ]
74HC2G14GW PDF Datasheet Download
