The M74HC4053 is a triple two-channel analog MULTIPLEXER/DEMULTIPLEXER fabricated with silicon gate C2MOS technology and it is pin to pin compatible with the equivalent metal gate
CMOS4000B series. It contains 6 bidirectional and digitally controlled analog switches. A built-in level shifting is included to allow an input range up to +-6V (peak) for an analog signal with digital control signal of 0 to 6V. VEE supply pin is provided for analog input signals. It has an inhibit (INH) input terminal to disable all the switches when high. For operation as a digital multiplexer/demultiplexer, VEE is connected to GND. A, B and C control inputs select one of a pair of channels. All inputs are equipped with protection circuits against static discharge and transient excess voltage.