74HC4051 8-Channel-Mux 8-Channel Analog Multiplexer Module Pack

The 74HC405 1 is an 8-channel analog multiplexer/multiplexer, with 3 digit selector ends (S0 to S2), 1 low effective enable end (E), 8 independent

As a digital multiplexer/multiplexer, VEE will be connected to GND, upper (usually ground).

VCC and GND are the power supply pins of the digital control end (S0 to S2, E), The VCC to GND range of 74HC405 1 is 2.0V-10.0V 74HC4051 analog input/output (Y0 to Y7,Z oscillates between upper VCC and lower VEE, VCC VEE should not exceed 10V.