CD4490-Hex contact bounce eliminator


CD4490 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4490 has Hex contact bounce eliminator

CD4490 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.

CD4490 Features

  • Internal Oscillator (R–C), or External Clock Source
  • TTL Compatible Data Inputs/Outputs
  • Single Line Input, Debounces Both “Make” and “Break” Contacts
  • Does Not Require “Form C” (Single Pole Double Throw) Input Signal
  • Cascadable for Longer Time Delays
  • Schmitt Trigger on Clock Input (Pin 7)
  • Supply Voltage Range = 3.0 V to 18 V
  • Chip Complexity: 546 FETs or 136.5 Equivalent Gates

CD4490 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
  • 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): +260oC
    • At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum

CD4490 Pinout Diagram

CD4490 Pin Description

Pin NoPin NameDescription
1AinInput Pin A
2BoutOutput Pin B
3Cin Input Pin C
4D(out) Output Pin D
5E(in) Input Pin E
6Fout Output Pin F
7OSC inOscillator Input Pin
8VSSSupply Voltage
9OSC outOscillator Output Pin
10Fin Input Pin F
11E(out) Output Pin E
12Din Input Pin D
13Cout Output Pin C
14Bin Input Pin B
15Aout Output Pin A
16VDDDrain Voltage

CD4490 Circuit


CD4490 Alternative Equivalent

Download CD4490-Hex contact bounce eliminator Datasheet from the link given below.