The CD4017 IC is a 5-stage CMOS Decade counter that counts to 10. It has 10 decoded outputs and a carry out pin that represents numbers 1 to 10. It also has a single clock pin, so for every clock pulse ,the counting increases with one. The IC can be powered from a 3V to 5V supply voltage with a clock speed of 5MHz. CD4017 is widely used in a number of applications, including, binary counter, decoder, frequency divider, LED chaser, LED matrix and more.
Product Description of CD4017 Decade Counter IC

An alternative to the Decade Counter is the CD4518 – Dual BCD Up Counter IC.
CD4017 IC Pin Description
Features of CD4017 Decade Counter IC
- Fully static operation
- Wide supply voltage range: 3.0V to 15V
- Has a high noise immunity of: 0.45 VDD (typ.)
- Has a low power Fan out of 2 driving 74L
- TTL compatibility or 1 driving 74LS
- Has a speed operation 5.0 MHz (typ.) with 10V VDD
- Low power: 10mW (typ.)
- Operating Temperature is from -40 °C to +125 °C
- Lead Temperature (TL) (Soldering, 10 seconds) : 260°C
Mechanical Drawing of CD4017 Decade Counter IC
Package Contents
1× CD4017 Decade Counter IC