This part is a kind of semiconductor called 74HCT4053.

Function of this product has Triple 2-Channel Analog Multiplexer / Demultiplexer.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

74HC4053; 74HCT4053 Triple 2-channel analog multiplexer/demultiplexer Rev. 9 10 February 2016 Product data sheet 1. General description The 74HC4053; 74HCT4053 is a triple single-pole double-throw analog switch (3x SPDT) suitable for use in analog or digital 2:1 multiplexer/demultiplexer applications. Each switch features a digital select input (Sn), two independent inputs/outputs (nY0 and nY1) and a common input/output (nZ). A digital enable input (E) is common to all switches. When E is HIGH, the switches are turned off. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. 2. Features and benefits  Wide analog input voltage range from 5 V to +5 V  Complies with JEDEC standard no. 7A  Low ON r [ ... ]

74HCT4053 PDF Datasheet Download