The CD74HC4051PWT is a multiplexer switch integrated circuit (IC) manufactured by Texas Instruments. The device is a high-speed CMOS 8-channel analog multiplexer/demultiplexer. It provides high noise immunity, wide supply ranges, and allows extremely low power consumption. The device can be used for a variety of switching and routing applications. It offers two types of input logic, either differential with 3-state capability or single-ended. The output signal can be single-ended or complementary. The CD74HC4051PWT device features low signal control, wide supply range, low power dissipation, high-speed switching, low on-resistance, wide dynamic range of control signal, and noise immunity.