CD4017 Decade Counter ICSKU 13010

Transistors & IC

CD4017 Decade Counter IC

₹29

01 — About

What it does

The CD4017 Decade Counter IC is a 10-stage Johnson counter that sequences through 10 outputs with each clock pulse. It is the classic chip for LED chasers, sequencing circuits, and frequency divider applications.

Key features

  • 10 decoded outputs (Q0-Q9)
  • One output HIGH at a time
  • Advances on clock rising edge
  • Reset input to return to Q0
  • Carry output for cascading multiple 4017s
  • 16-pin DIP package
  • CMOS low power

Good to know

  • Clock from 555 timer is classic combination
  • Connect reset to appropriate output for fewer than 10 steps
  • Carry out can drive clock of second 4017 for >10 steps
  • CMOS – handle with anti-static precautions
  • Outputs can directly drive LEDs with current-limiting resistors
  • Enable pin (13) HIGH stops counting

02 — Datasheet

Specifications

08
Function
Decade counter / Johnson counter
Logic Family
CMOS (4000 series)
Supply Voltage
3V – 15V
Clock Frequency
Up to ~5MHz at 5V
Outputs
10 (Q0-Q9)
Package
DIP-16
Power
Low (< 1mA)
Drive Current
~10mA per output