In this video number {1257}, How to test 74HC4052, CD4052, MC14052, HEF4020, Function explained. It is dual 4-channel analog multiplexer, demultiplexer digital IC. 74HC4052 (in 16 pin DIP) and 74HCT4052 (in 16 pin SMD DHVQFN16) are high-speed Si-gate CMOS devices. Pins are compatible with CD4052, HEF14052 and HEF4052B in the CMOS family. Each multiplexer has four independent inputs/outputs (named as y) and a common input/output (pin Z). The common channel select logics include two digital select inputs (named select inopputs pins S0 and S1) and anactive LOW enable input (pin E). When pinE = LOW, oneof the four switches is selected using select pins S0 and S1. When pinE = HIGH, all switches are in the high-impedance OFF-state,
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