The SN74LV4051ADR is a multiplexer switch IC manufactured by Texas Instruments. It is an 8-channel analog multiplexer switch that is designed to save board space and simplify connections. It has a low voltage design, making it suitable for use in low voltage applications, with a 4.5V to 5.5V power supply range. This IC is capable of switching 8 input lines to one output line, in a variety of modes including parallel, 2:1, 4:1, and 8:1. It also includes precise control over switching slew rates. With up to 15V common mode input range and logic level interface, it can easily interface with most digital logic designs. This IC is also characterized for operation over the temperature range of -40°C to 85°C, making it suitable for use in a wide range of applications.