CD4020B 14-bit Binary Counter/Divider

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CD4020B IC Pinout Configuration

Pin NumberPin NameDescription
1,2,3,4,5,6,7,9,12,13,14,15Q1,Q4,Q5,Q6,Q7,Q8,Q9,Q10,Q11,Q12,Q13,Q14Output pins of the Binary counter
8GroundConnected to digital Ground
10ClockClock signal should be given as input
11ResetPulling the reset pin high will reset counter


  • 14-bit Binary Counter/Divider
  • Counting range: 0 to 16383 (In decimal)
  • Operating Voltage: 3V to 18V
  • Nominal Voltage: 5V, 10V, 15V
  • Source current, sink current details are given in datasheet below.
  • Maximum Clock Frequency: 3.5MHz at 5V
  • Reset Propagation Delay: 140ns at 5V
  • Available in 16-pin PDIP, CDIP,SOIC, TSSOP packages

Where to use CD4020 IC?

The IC CD4026 is a 14-bit Binary Counter IC from Texas Instruments. It has 12 output pins ranging from Q1 to Q14 excluding Q2 and Q3. When an Input clock pulse is given to the pin for each pulse the binary value gets incremented from 00 0000 0000 0000 to 11 1111 1111 1111 which is equivalent for 0 to 16383 in decimal.

This behavior of the IC can be used to build counters and Dividers, also it is very commonly used for timing related applications. So if you are looking for a 14-bit binary counter which can be incremented through a clock pulse then this IC might be of interest to you.


  • Used for creating long timing period
  • Astable frequency divider or counter circuit
  • Timing related applications
  • Used in project where Microcontrollers should be avoided

Farees Ahmed

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