Switch ICs

Electronic switches are a broad category that encompasses any device that controls the passing of signals from any number of input ports to any number of output ports. These signals can be analog or digital. 

The digital bus switch is perhaps the simplest of switches. When the switch is enabled, it passes the digital state from its input to its output. When the switch is disabled, the output is in a high-impedance state (open). A slightly more complicated switch is the multiplexer (also known as mux). A mux has multiple inputs of which one is selected and passed to the output. A multiplexer can be analog or digital. The crosspoint switch has multiple outputs and can be programmed to arbitrarily assign any of its inputs to any of its outputs.
Muxes and crosspoints operate on layer 1 of the Open Systems Interconnection (OSI) model. Devices such as an Ethernet switch or a PCIe switch are digital and help steer the data packets across a network to a destination node. 

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CD4016BCN

CMOS Quad Bilateral Switch
€1.27

CD4051BCN

Single 8-Channel Analog Multiplexer/Demultiplexer With Logic-Level Conversion
€0.87

CD4051BE

Single 8-Channel Analog Multiplexer/Demultiplexer With Logic-Level Conversion
€0.37

CD4051BE

Single 8-Channel Analog Multiplexer/Demultiplexer With Logic-Level Conversion
€0.33

CD4016BE

CMOS Quad Bilateral Switch
€0.59

CD4016BE

CMOS Quad Bilateral Switch
€1.10

CD4016BE

CMOS Quad Bilateral Switch
€0.46

CD4066BE

Quad single-pole single-throw analog switch
€0.51

CD4067BE

16 channel analog multiplexor/ demultiplexor
€3.56

CD4067BE

16 channel analog multiplexor/ demultiplexor
€1.98

HEF4066BP

Quad single-pole single-throw analog switch
€0.59

MC14066BCP

Quad single-pole single-throw analog switch
€0.64

TC4016BP

CMOS Quad Bilateral Switch
€0.56

CD4052BCN

Multiplexer Switch, Multiplexor/Demultiplexor
€0.46

CD74HC4052E

Multiplexer Switch, Multiplexor/Demultiplexor
€0.96

DG444DJ

Analogue Switch ICs Quad SPST CMOS Normally Closed
€1.86

CD4053BE

Multiplexer Switch ICs Triple 2-Ch Analog
€0.73

CD4053BE

Multiplexer Switch ICs Triple 2-Ch Analog
€0.73

CD4053BE

Multiplexer Switch ICs Triple 2-Ch Analog
€0.40

DG409DJ

Single 8-Channel/Differential 4-Channel, CMOS Analog Multiplexers
€3.41

CD4066BCN

The CD4066BC is a CMOS quad bilateral switch intended for the transmission or multiplexing of analog or digital signals.
€0.64

DG211CJ

Analogue Switch ICs Quad SPST CMOS Normally Closed
€3.35