SparkFun Multiplexer Breakout - 8 Channel (74HC4051)

The SparkFun Multiplexer Breakout is a versatile tool that unlocks the full potential of the 74HC4051, an 8-channel analog multiplexer/demultiplexer. This device allows you to transform four I/O pins into eight individually selectable signals, suitable for a range of applications from driving eight LEDs to monitoring eight potentiometers.

The 74HC4051 integrated into the breakout board can serve as either a multiplexer or a demultiplexer, offering eight channels of selectable inputs/outputs. The direction of the common signal to independent I/O is digitally controlled by three select lines, which can be adjusted to one of eight binary combinations.

The board is designed for easy access to all features. One half of the board provides access to the control signals (E, S0-S2) and common input/output (Z), while the other side gives access to all eight independent I/O’s (Y0-Y7). Both sides are equipped with supply and ground connections (VCC, VEE, GND).

The SparkFun Multiplexer Breakout is capable of switching both analog and digital signals. It offers 8 channels controlled by 3 select inputs and supports a wide voltage supply range from 2 to 10V. The board also provides bipolar supply support (e.g., ±5V) and includes an optional enable input. With its breadboard-compatible breakout, it offers ease of use in a variety of applications.

For those interested in the technical details, a range of supporting documents are available. These include a schematic of the board, Eagle files for viewing the board design, a hookup guide for getting started, the datasheet for the 74HC4051 chip, and the GitHub repository for the project.

Whether you're a hobbyist looking for a versatile component for your next project or a professional in need of a reliable multiplexer/demultiplexer solution, the SparkFun Multiplexer Breakout is a robust and versatile choice that will not disappoint.