This part is a kind of semiconductor called 74HCT354.

Function of this product has 8-input multiplexer/register with transparent latches; 3-state.

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/HCT354 8-input multiplexer/register with transparent latches; 3-state Product specification File under Integrated Circuits, IC06 December 1990 Philips Semiconductors Product specification 8-input multiplexer/register with transparent latches; 3-state FEATURES • Transparent data latches • Transparent address latch • Easily expanding • Complementary outputs • Output capability: bus driver • ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT354 are high-speed Si-gate CMOS devices and are pin compatible with low power Sch [ ... ]

74HCT354 PDF Datasheet Download