16 Key Matrix Keypad Module – 4x4 Membrane Interface

The 16 Key Matrix Keypad Module is a compact input device designed for microcontroller-based systems such as Arduino and embedded platforms. It features a 4x4 matrix configuration with 16 tactile keys, enabling efficient input detection using only 8 I/O pins. The module operates with low contact resistance and fast response time, ensuring reliable signal transmission and consistent performance. Built for durability and ease of integration, it supports stable operation across various voltage levels. Ideal for access control systems, user interfaces, and embedded control applications.

• 4x4 matrix keypad configuration with 16 input keys
  
• 8-pin interface for efficient microcontroller connection
  
• Membrane-type tactile button design
  
• Low contact resistance range 10Ω to 500Ω
  
• Fast response with 1 ms rebound time
  
• Operating voltage up to 35V DC
  
• Maximum operating current 100mA
  
• Lightweight and compact form factor
  
• Flexible membrane for extended lifespan
  
• Easy integration with Arduino and embedded systems
  
• Reduced I/O pin usage via matrix scanning
  
• Durable printed circuit membrane structure
  
• Suitable for low-power applications
  
• Stable electrical performance under repeated use
  

• Number of Keys: 16 (4x4 matrix)
  
• Interface Pins: 8 pins
  
• Operating Voltage: Up to 35V DC
  
• Operating Current: 100mA
  
• Contact Resistance: 10Ω to 500Ω
  
• Rebound Time: 1 ms
  
• Touch Force: 170g to 397g
  
• Key Type: Membrane tactile switches
  
• Matrix Configuration: 4 rows x 4 columns
  
• Connection Type: Ribbon cable or header pins
  
• Material: Flexible membrane with printed circuit
  
• Dimensions: Approx. 70 × 77 × 1 mm
  
• Weight: Approx. 10 g
  
• Compatibility: Arduino, Raspberry Pi, microcontrollers

• 16 Key Matrix Keypad Module 3D Model
• 16 Key Matrix Keypad Module Datasheet

• 4x4 MATRIX KEYPAD / MEMBRANE KEYBOARD - Arduino tutorial #26