This part is a kind of semiconductor called 74175.
Function of this product has SN74175.
Manufacturers : ETC
Image and pinout :

Some of the text within the PDF file :
IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the [ ... ]
74175 PDF Datasheet Download
