NXP 74HC4052D 芯片, 74HC CMOS逻辑器件
The is a dual single-pole quad-throw 2x SP4T Analog Switch suitable for use in analog or digital 4:1 multiplexer/demultiplexer applications. Each switch features four independent inputs/outputs nY0, nY1, nY2 and nY3 and a common input/output nZ. A digital enable input E and two digital select inputs S0 and S1 are common to both switches. When E is high, the switches are turned off. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.