74HC4067 16-Channel Analog / Digital Multiplexer Module

74HC4067 16-Channel Analog / Digital Multiplexer Module

The 74HC4067 16-channel multiplexer module expands a single Arduino analog or digital pin into 16 individually selectable channels. Using just 4 digital control pins (S0–S3), you can route any of 16 analog or digital signals through a single common pin — ideal for reading 16 sensors with only 5 Arduino pins total. Bidirectional operation supports both analog input multiplexing and digital output demultiplexing.

Key Specifications

• IC: 74HC4067 | Channels: 16 (1-of-16 mux)
• Control: 4-bit binary (S0–S3) | Signal type: Analog & digital
• Operating voltage: 2–6V | Signal voltage: up to VCC
• On-resistance: ~70Ω | Bandwidth: ~150MHz
• Direction: Bidirectional | Enable pin: Active LOW
• Compliance: RoHS compliant

Why Choose This?

• ✅ 16 analog inputs with 5 Arduino pins — 4 control + 1 common signal pin
• ✅ Bidirectional — use as multiplexer (input) or demultiplexer (output)
• ✅ Analog and digital — works with both analog sensors and digital signals
• ✅ Enable pin — disable all channels for power saving

Typical Applications

• Expanding Arduino analog inputs beyond 6 channels
• Reading 16 sensors with minimal Arduino pins
• Keyboard matrix scanning
• Multi-channel ADC data acquisition systems

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