MC54HC4053 Overview
These analog multiplexers/ demultiplexers control analog voltages that may vary across the plete power supply range (from VCC to VEE). The HC4051, HC4052 and HC4053 are identical in pinout to the metal gate MC14051B, MC14052B and MC14053B. The Channel Select inputs determine which one of the Analog Inputs/Outputs is to be connected, by means of an analog switch, to the mon Output/Input.