The CJMCU-4051 is a breakout board based on the 74HC4051 analog multiplexer/demultiplexer IC. It allows one analog or digital signal to be connected to any of eight input/output channels using only three control pins. Ideal for signal expansion, sensor arrays, and analog input multiplexing in Arduino and other microcontroller projects.

Features of CJMCU-4051 8-Channel Analog Multiplexer/Demultiplexer Breakout Board:

1. Based on the 74HC4051 analog multiplexer/demultiplexer IC
2. 8-channel signal routing through a single common pin
3. Supports both analog and digital signals
4. Compatible with 3.3V and 5V logic systems
5. Fast switching and low ON resistance
6. Compact and breadboard-friendly design
7. Bidirectional signal control
8. Useful for expanding analog input capacity on Arduino, ESP32, etc.

Specifications of CJMCU-4051 8-Channel Analog Multiplexer/Demultiplexer Breakout Board:

• Channels: 8 (Y0–Y7)
• Control Pins: S1, S2, S3
• Common I/O Pin: Z
• Operating Voltage: 2V – 10V
• IC Package: SOP-16
• Logic Compatibility: 3.3V / 5V
  
• Operating Temperature: -40°C to +85°C

Package Includes:

1 × CJMCU-4051 8-Channel Analog Multiplexer/Demultiplexer Breakout Board