CD4026 Decade Counters/Dividers


CD4026 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4026 has Decade Counters/Dividers

CD4026 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.

CD4026 Features

  • Counter and 7-segment decoding in one package
  • Easily interfaced with 7-segment display types
  • Fully static counter operation: DC to 6 MHz (Typ.) at VDD =10 V
  • Ideal for low-power displays
  • Display enable output (CD40268)
  • “Ripple blanking” and lamp test (CD4033B)
  • 100% tested for quiescent current at 20V
  • Standardized, symmetrical output characteristics
  • 5-V, 10-V, and 15-V parametric ratings
  • Schmitt-triggered clock inputs

CD4026 Specifications

Absolute Maximum Ratings

  • DC Supply Voltage Range, (VDD): -0.5V to +20V (Voltage Referenced to VSS Terminals)
  • Input Voltage Range, All Inputs: -0.5V to VDD +0.5V
  • DC Input Current, Any One Input: ±10mA
  • Operating Temperature Range: -55oC to +125oC Package Types D, F, K, H
  • Storage Temperature Range (TSTG): -65oC to +150oC
  • Lead Temperature (During Soldering): +265oC
    • At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum

CD4026 Pinout Diagram

CD4026 Pin Description

Pin NoPin NameDescription
1CLKClock Pin
2CLK INHIBIT Clock Inhibit Pin
3DISPLAY ENABLE INDisplay Enable Pin
5CARRYOUTCarry Out Pin
6fDecoded Output Pin f
7g Decoded Output g
8VSSSupply Voltage
9d Decoded Output d
10a Decoded Output Pin a
11e Decoded Output e
12b Decoded Output b
13c Decoded Output c
14UNGATED SEGMENT “c”Ungated Segment Pin”c”
15RESETReset Pin
16VDDDrain Voltage

CD4026 Circuit


  • Decade counting 7-segment decimal display
  • Frequency division 7-segment decimal displays

CD4026 Alternative Equivalent

CD4017, CD4022

Download CD4026 Decade Counters/Dividers Datasheet from the link given below.