This part is a kind of semiconductor called 74HC40102.

Function of this product has 8-bit synchronous BCD down counter.

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/HCT40102 8-bit synchronous BCD down counter Product specification File under Integrated Circuits, IC06 December 1990 Philips Semiconductors 8-bit synchronous BCD down counter Product specification 74HC/HCT40102 FEATURES • Cascadable • Synchronous or asynchronous preset • Output capability: standard • ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT40102 are high-speed Si-gate CMOS devices and are pin compatible with the “40102” of the “4000B” series. They are specified in compliance with JEDEC standard no. 7A. [ ... ]

74HC40102 PDF Datasheet Download