CD4017 Decade Counter IC | Johnson Counter & 10-Output Divider IC for LED Chaser, Timer & DIY Electronics Projects

Technical Specifications

• IC Type: Decade Counter / Johnson Counter
• Model: CD4017
• Package Type: DIP-16
• Operating Voltage: 3V – 15V DC
• Logic Family: CMOS
• Number of Outputs: 10 (Q0–Q9)
• Clock Input: Positive edge triggered
• Reset Pin: Yes
• Carry Out Pin: Yes
• Power Consumption: Very low (CMOS)
• Operating Temperature: −40°C to +85°C
• Mounting Type: Through-Hole

Product Description

The CD4017 IC is a CMOS decade counter and Johnson counter that provides 10 decoded sequential outputs, making it ideal for LED chaser circuits, counters, timers, and sequencing applications. Each clock pulse advances the output from Q0 to Q9, allowing simple and effective control of multiple outputs.

Operating over a wide voltage range of 3V to 15V, the CD4017 IC is suitable for battery-powered and regulated power supply circuits. Its low power consumption and high noise immunity make it perfect for educational, DIY, and professional electronics projects.

Commonly used with the 555 timer IC, the CD4017 is popular in running light effects, traffic light controllers, digital counters, display systems, and automation projects. Easy to use and highly reliable, it is an essential IC for students, hobbyists, and electronics engineers.