The LVX4052 is similar in pinout to the highspeed HC4052A and the metalgate MC14052B. The ChannelSelect inputs determine which one of the Analog Inputs/Outputs is to be connected, by means of an analog switch, to the Common Output/Input. When the Enable pin is HIGH, all analog switches are turned off. The ChannelSelect and Enable inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.