74HC4067 16-Ch Analog / Digital Mux Module

DESCRIPTION

The 16-Ch Analog / Digital Mux Module mounts a 74HC4067, a 16-channel multiplexer/demultiplexer IC that can route both analog and digital signals in both directions.

Module Connections

On the electronics module there are 2 rows of breakout points.  These can be used to connect wires or header pins can be soldered in depending on the application.

1×8 Header

• SIG = Signal Input / Output.  This will usually connect to an analog input or digital I/O on the microcontroller
• S3 = Binary Address Bit 3.  The address bits (3…0) connect to 4 digital output pins on the microcontroller to select channel.
• S2 = Binary Address Bit 2
• S1 = Binary Address Bit 1
• S0 = Binary Address Bit 0
• EN = Enable.  Internally pulled LOW to enable by default.  Can be pulled HIGH to disable all channels.
• VCC = 2 to 6V.  Usually connected to 5V or 3.3V to match the microcontroller power.
• GND = Ground, must be common with the microcontroller.

1×16 Header

• C15 = Channel 15
• C14 = Channel 14
• ….
• C1 = Channel 1
• C0 = Channel 0