CD 4017 IC-Decade Counter

The CD4017 IC is a CMOS Decade Counter/Divider with 10 decoded outputs. It is widely used for sequential counting and display driving applications. Each clock pulse advances the counter to the next output, making it useful for LED chasers, digital clocks, frequency dividers, and event counters.

The CD4017 includes features such as carry-out (CO) for cascading multiple ICs, reset pin to restart the count, and enable input for clock control. Its low power consumption and high noise immunity make it ideal for educational and professional electronics projects.

🔹 Applications

• LED chasers and running light circuits

• Digital clocks and timing systems

• Frequency dividers and pulse counting

• Sequential event counters

• Light and sound effects generators

• Robotics and automation sequencing

• DIY electronics and educational kits

🔹 Precautions

• Ensure supply voltage is within 3V to 15V (typically 5V or 9V)

• Keep clock input free from noise to avoid false triggering

• Avoid exceeding maximum input voltage levels

• Use a proper debounced switch if using manual clock inputs

• Handle with care to prevent ESD damage

• Ensure correct wiring when cascading multiple CD4017 ICs

🔹 Technical Specifications

• IC Type: Decade Counter/Divider

• Package: DIP-16

• Number of Outputs: 10 decoded outputs (Q0–Q9)

• Clock Input: Rising edge triggered

• Reset Pin: Active high, resets count to zero

• Enable Input: Active high, inhibits counting

• Carry-Out (CO): For cascading counters

• Logic Family: CMOS 4000 series

• Supply Voltage Range (Vdd): 3V – 15V (5V/9V/12V typical)

• Output Drive: TTL/CMOS compatible

• Power Consumption: Low (CMOS design)

• Pin Count: 16 pins

• Operating Temperature Range: -55°C to +125°C

📹 Tutorial Video

Watch CD4017 Decade Counter Tutorial

🔹 Related Categories

• IC’s

• Electronics Components

• Arduino and Accessories

• Tools and Accessories

🔹 Summary

The CD4017 Decade Counter IC (DIP-16) is a versatile and widely used component for LED sequencing, counters, clocks, and automation circuits. With 10 decoded outputs, cascading capability, and low power CMOS design, it is perfect for both hobbyist and professional projects. A must-have in your IC’s and digital electronics collection.