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The CD74HC4067 16-Channel Multiplexer Breakout Board is a versatile and cost-effective solution to expand your input/output capabilities. Acting as a 16-to-1 multiplexer (MUX) or 1-to-16 demultiplexer (DEMUX), it allows multiple analog or digital signals to share a single microcontroller pin.
You can select one of the 16 channels using 4 binary address pins, enabling efficient management of large sensor arrays or multiple data inputs.
It supports a wide operating voltage range and works seamlessly with 3.3V and 5V logic levels, making it ideal for Arduino, ESP8266, ESP32, STM32, and Raspberry Pi projects.
Common uses include sensor scanning, analog signal selection, keyboard matrix expansion, and data routing for IoT and robotics applications.
⚙️ Features
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🔢 16-channel analog/digital multiplexer or demultiplexer
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⚙️ Control 16 signals using only 4 address pins
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🔌 Compatible with both 3.3V and 5V systems
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📈 Low on-resistance and fast switching speed
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💡 Supports analog signals (0–VCC) and digital logic
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🧩 Compact breakout board for easy integration
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🔄 Bi-directional signal flow
📊 Specifications
| Parameter | Description |
|---|---|
| Chip Model | CD74HC4067 |
| Channels | 16 (Analog/Digital) |
| Operating Voltage | 2V – 6V |
| Logic Control Pins | 4 (S0, S1, S2, S3) |
| Signal Type | Analog or Digital |
| Signal Voltage Range | 0V – VCC |
| On Resistance | ~70Ω (typical) |
| Compatibility | Arduino, ESP32, STM32, Raspberry Pi |
| Dimensions | Approx. 25mm × 35mm × 5mm |
