This part is a kind of semiconductor called HEF40106B.

Function of this product has Hex inverting Schmitt trigger.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC • The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF40106B gates Hex inverting Schmitt trigger Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification Hex inverting Schmitt trigger DESCRIPTION Each circuit of the HEF40106B functions as an inverter with Schmitt-trigger action. The Schmitt-trigger switches at different points for the positive and negative-going input signals. The difference between the positive-going voltage (VP) and the negative-going voltage (VN) is defined as hysteresis voltage (VH). This device may be used for enhanced noise immunity or to [ ... ]

HEF40106B PDF Datasheet Download