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MC14490: Hex Bounce Eliminator

Datasheet: Hex Contact Bounce Eliminator
Rev. 10 (161.0kB)
Product Overview
»View Reliability Data
»View Material Composition
» Product Change Notification
The MC14490 is constructed with complementary MOS enhancement mode devices, and is used for the elimination of extraneous level changes that result when interfacing with mechanical contacts. The digital contact bounce eliminator circuit takes an input signal from a bouncing contact and generates a clean digital signal four clock periods after the input has stabilized. The bounce eliminator circuit will remove bounce on both the "make" and the "break" of a contact closure. The clock for operation of the MC14490 is derived from an internal R-C oscillator which requires only an external capacitor to adjust for the desired operating frequency (bounce delay). The clock may also be driven from an external clock source or the oscillator of another MC14490 (see Figure 5).

NOTE: Immediately after power-up, the outputs of the MC14490 are in indeterminate states.
Features
 
  • Diode Protection on All Inputs
  • Six Debouncers Per Package
  • Internal Pullups on All Data Inputs
  • Can Be Used as a Digital Integrator, System Synchronizer, or Delay Line
  • 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
  • Pb-Free Packages are Available
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability & Samples
Specifications
Case Outlines
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
MC14490DWG Active
Pb-free
Halide free
MC14490 SOIC-16W 751G-03 3 260 Tube 47 $3.4666
MC14490DWR2G Active
Pb-free
Halide free
MC14490 SOIC-16W 751G-03 3 260 Tape and Reel 1000 $3.4666
NLV14490DWG Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
MC14490 SOIC-16W 751G-03 3 260 Tube 47 $3.8132
NLV14490DWR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
MC14490 SOIC-16W 751G-03 3 260 Tape and Reel 1000 $3.8132
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8

Product
Description
Pricing ($/Unit)
Compliance
Status
Type
VCC Min (V)
VCC Max (V)
tpd Max (ns)
PD Max (W)
IO Max (mA)
Package Type
MC14490DWG  
 $3.4666 
Pb
H
 Active   
Bounce Eliminator
3
18
320
0.5
9
SOIC-16W
MC14490DWR2G  
 $3.4666 
Pb
H
 Active   
Bounce Eliminator
3
18
320
0.5
9
SOIC-16W
NLV14490DWG  
 $3.8132 
Pb
A
H
P
 Active   
Bounce Eliminator
3
18
320
0.5
9
SOIC-16W
NLV14490DWR2G  
 $3.8132 
Pb
A
H
P
 Active   
Bounce Eliminator
3
18
320
0.5
9
SOIC-16W
Case Outlines
751G-03   
Packages
MC14490: Hex Bounce Eliminator
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