(China (Mainland))
Product Summary
The MC14490P 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 of the MC14490P will remove bounce on both the "make" and the "break" of a contact closure. The clock for operation of the MC14490P 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 MC14490P.
Parametrics
MC14490P maximum ratings: (1)VDD DC Supply Voltage Range: –0.5 to +18.0 V; (2)Vin, Vout Input or Output Voltage Range(DC or Transient): –0.5 to VDD + 0.5 V; (3)Iin Input Current (DC or Transient) per Pin: ±10 mA; (4)PD Power Dissipation, per Package: 500 mW; (5)TA Ambient Temperature Range: –55 to +125 ℃; (6)Tstg Storage Temperature Range: –65 to +150 ℃; (7)TL Lead Temperature(8–Second Soldering): 260 ℃.
Features
MC14490P features: (1)Diode Protection on All Inputs; (2)Six Debouncers Per Package; (3)Internal Pullups on All Data Inputs; (4)Can Be Used as a Digital Integrator, System Synchronizer, or Delay Line; (5)Internal Oscillator (R-C), or External Clock Source; (6)TTL Compatible Data Inputs/Outputs; (7)Single Line Input, Debounces Both "Make" and "Brea" Contacts; (8)Does Not Require "Form C"(Single Pole Double Throw) Input Signal; (9)Cascadable for Longer Time Delays; (10)Schmitt Trigger on Clock Input (Pin 7); (11)Supply Voltage Range = 3.0 V to 18 V; (12)Chip Complexity: 546 FETs or 136.5 Equivalent Gates.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
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 MC14490P |
ON Semiconductor |
Arithmetic Logic Unit (ALU) LOG CMOS 3-18V HEX BOUNCE ELIMINATOR |
Data Sheet |
Negotiable |
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MC14490PG |
ON Semiconductor |
Arithmetic Logic Unit (ALU) LOG CMOS 3-18V HEX BOUNCE ELIMINATOR |
Data Sheet |
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