CD74HC4067 16 Channel Analog Digital Multiplexer Module Arduino

Description �� CD74HC4067 16-Channel Analog/Digital Multiplexer Module | Arduino & Raspberry Pi | AuscomTech The CD74HC4067 16-Channel Multiplexer Module is a versatile CMOS-based analog and digital signal switch designed to dramatically expand I/O capability on microcontrollers using only a few control pins.It allows up to 16 independent signals to be routed through a single common channel, making it ideal for sensor arrays, data acquisition, signal routing, and embedded control systems. Widely used with Arduino, Raspberry Pi, ESP32, ESP8266, and STM32 platforms, this module simplifies wiring while maintaining reliable, high-speed signal switching. ⭐ Key Features �� 16-Channel Signal MultiplexingRoute one of 16 inputs/outputs through a single common pin (SIG) using binary addressing. ⚡ Analog & Digital Signal SupportHandles both analog voltages and digital logic levels, suitable for ADC inputs, GPIO expansion, and signal selection. �� 4-Pin Binary Channel Selection (S0–S3)Select any channel using just four GPIO pins, significantly reducing I/O usage. �� Enable / Disable Control (EN Pin)Disconnects all channels when disabled, providing full control over signal flow. ⚙️ Wide Operating Voltage RangeOperates from 2V to 6V, compatible with 3.3V and 5V logic systems. �� Fast Switching PerformanceTypical switching time of ~6ns at 4.5V with break-before-make action to minimise crosstalk. �� Bidirectional OperationSignals can flow in either direction, allowing flexible input or output configurations. �� Technical Specifications Specification Details IC CD74HC4067 Channels 16 Signal Type Analog & Digital (bidirectional) Operating Voltage 2V – 6V Logic Level 3.3V / 5V compatible Control Pins S0, S1, S2, S3 Enable Pin EN (active LOW) Switching Time ~6ns @ 4.5V On-Resistance Low (CMOS) Break-Before-Make Yes Board Type Breakout module �� Compatible With • Arduino (Uno, Nano, Mega)• Raspberry Pi (GPIO / ADC via external ADC)• ESP32 / ESP8266• STM32 microcontrollers• RP2040• External ADC modules (ADS1115, MCP3008, etc.) �� Typical Applications • Sensor arrays (temperature, light, pressure, etc.)• Expanding analog inputs on microcontrollers• Audio signal routing• Data acquisition systems• Robotics & automation• GPIO expansion• Signal testing and switching ⚠️ Programming & Wiring Notes • Only one channel is active at a time• EN pin must be LOW to enable switching• Analog signal voltage must remain within VCC and GND• Ideal for use with external ADCs on platforms with limited analog inputs �� Package Includes • 1 × CD74HC4067 16-Channel Analog/Digital Multiplexer Module