CD4040 12-stage Binary/Ripple Counter


CD4040 belongs to 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4040 has12-stage Binary/Ripple Counter

CD4040 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.

CD4040 Features

  • Wide supply voltage range: 1.0V to 15V
  • High noise immunity: 0.45 VDD (typ.)
  • Low power TTL compatibility: Fan out of 2 driving 74L or 1 driving 74LS
  • Medium speed operation: 8 MHz typ. at VDD = 10V
  • Schmitt trigger clock input

CD4040 Specifications

Absolute Maximum Ratings

  • DC Supply Voltage Range, (VDD): -0.5V to +18V (Voltage Referenced to VSS Terminals)
  • Input Voltage Range, All Inputs: -0.5V to VDD +0.5V
  • Operating Temperature Range: -55oC to +125oC Package Types D, F, K, H
  • Package Dissipation (PD)
    • Dual-In-Line 700 mW
    • Small Outline 500 mW
  • Lead Temperature (During Soldering): +260oC
    • At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum

CD4040 Pinout Diagram

CD4040 Pin Description

Pin NoPin NameDescription
1Q12Output Of Binary Counter 12
2Q6 Output Of Binary Counter 6
3Q5 Output Of Binary Counter 5
4Q7 Output Of Binary Counter 7
5Q4 Output Of Binary Counter 4
6Q3 Output Of Binary Counter 3
7Q2 Output Of Binary Counter 2
8VSSSupply Voltage
9Q1 Output Of Binary Counter 1
10Φ1Input Pin
11RESETReset Pin
12Q9 Output Of Binary Counter 9
13Q8 Output Of Binary Counter 8
14Q10 Output Of Binary Counter 10
15Q11 Output Of Binary Counter 11
16VDDDrain Voltage

CD4040 Circuit


  • Frequency counters.
  • Digital clocks.
  • Analog to digital convertors

CD4040 Alternative Equivalent

CD4059, CD4060

Download CD4040 12-stage Binary/Ripple Counter Datasheet from the link given below.