CD74HC4067 16-Channel Analog Digital Multiplexer Module
CD74HC4067 16-Channel Analog Digital Multiplexer Module
CD74HC4067 / 74HC4067 16-Channel Analog & Digital Multiplexer Breakout Board
Expand your microcontroller's I/O capabilities instantly with the CD74HC4067 16-Channel Analog/Digital Multiplexer Breakout Module. Whether you're building a sensor array, reading multiple potentiometers, or routing digital signals, this compact SMD breakout board lets you control 16 inputs or outputs using just 4 digital control pins — a must-have for makers, hobbyists, and electronics engineers alike.
Key Features
- 16 Channels: Route up to 16 analog or digital signals through a single common I/O pin
- 4-Pin Control: Select any of the 16 channels using only 4 digital select lines (S0–S3)
- Wide Operating Temperature: Performs reliably from -55°C to +125°C — suitable for demanding environments
- SMD Package: Compact surface-mount design on a convenient breakout board with standard 2.54 mm pin headers
- Bidirectional Signal Routing: Works with both analog and digital signals in either direction
- Enable Pin: Built-in active-low enable pin for easy daisy-chaining of multiple modules
- Breadboard & Arduino Compatible: Standard pitch headers drop directly into breadboards or perfboards
- Condition: Brand new
Technical Specifications
| IC Chip | CD74HC4067 / 74HC4067 |
| Number of Channels | 16 |
| Control Pins | 4 (S0, S1, S2, S3) |
| Package Type | SMD Breakout Board |
| Operating Temperature | -55°C to +125°C |
| Signal Type | Analog & Digital (Bidirectional) |
| Quantity | 1 Module |
| Country of Origin | Made in Mainland China |
What Can You Build With It?
- Multi-sensor data acquisition systems
- Arduino / Raspberry Pi I/O expansion projects
- Analog signal switching and routing
- Keypad matrix interfaces
- Audio signal routing circuits
- Automated testing rigs
Package Contents
- 1 × CD74HC4067 16-Channel Analog/Digital Multiplexer Breakout Board Module
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Frequently Asked Questions
Q: What microcontrollers is the CD74HC4067 breakout board compatible with?
A: The CD74HC4067 multiplexer breakout board is compatible with a wide range of microcontrollers including Arduino (Uno, Mega, Nano), Raspberry Pi, ESP8266, ESP32, and most 3.3V or 5V development boards. Simply connect the 4 select lines (S0–S3) and the common SIG pin to your microcontroller's digital and analog I/O pins.
Q: Can this module handle both analog and digital signals?
A: Yes! The CD74HC4067 is a bidirectional multiplexer/demultiplexer, meaning it can route both analog and digital signals in either direction (input or output). This makes it extremely versatile for sensor arrays, signal switching, and digital I/O expansion applications.
Q: How many channels can I select, and how do I control them?
A: The module features 16 independent channels (C0–C15). You select a specific channel by setting a 4-bit binary address on the S0, S1, S2, and S3 control pins. For example, setting S0=LOW, S1=LOW, S2=LOW, S3=LOW selects channel C0, while S0=HIGH, S1=HIGH, S2=HIGH, S3=HIGH selects channel C15.
Q: Can I daisy-chain multiple CD74HC4067 modules together?
A: Absolutely. Each module includes an active-low enable (EN) pin. By using a digital output pin from your microcontroller to enable or disable individual modules, you can chain multiple boards together to expand to 32, 48, or more channels as needed for your project.