74HC4067

The CD74HC4067 16-Channel Analog/Digital Multiplexer Breakout Module expands a single microcontroller pin into 16 independent signal channels using just 4 digital address pins (S0–S3). Works bidirectionally with both analog and digital signals, making it ideal for reading multiple sensors, routing serial data, or expanding I2C/SPI buses. The enable pin (EN) disconnects all channels when driven HIGH.

Features:

• IC: CD74HC4067
• Channels: 16 (bidirectional analog/digital)
• Address select pins: S0–S3 (4-bit binary selection)
• Operating voltage: 2V – 6V DC
• ON resistance: 70Ω @ 4.5V
• Break-before-make switching: 6ns @ 4.5V (prevents crosstalk)
• Enable pin (EN): disables all channels when HIGH
• Operating temperature: −55°C to +125°C
• Compatible with Arduino, ESP32, Raspberry Pi, and 3.3V/5V systems