This part is a kind of semiconductor called 74HC151.

Function of this product has 8-input multiplexer.

Manufacturers : Philips

Image and pinout :

Some of the text within the PDF file :

INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications • The IC06 74HC/HCT/HCU/HCMOS Logic Package Information • The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT151 8-input multiplexer Product specification File under Integrated Circuits, IC06 December 1990 Philips Semiconductors Product specification 8-input multiplexer FEATURES • True and complement outputs • Multifunction capability • Permits multiplexing from n lines to 1 line • Non-inverting data path • See the “251” for the 3-state version • Output capability: standard • ICC category: MSI GENERAL DESCRIPTION 74HC/HCT151 The 74HC/HCT151 are high-speed Si-gate CMOS devices and are pin compatible with low power [ ... ]

74HC151 PDF Datasheet Download