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AT42QT1245_14 Datasheet, PDF (1/59 Pages) ATMEL Corporation – 24-key QMatrix FMEA IEC/EN/UL60730 Touch Sensor | |||
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Atmel AT42QT1245
24-key QMatrix FMEA IEC/EN/UL60730 Touch Sensor
PRELIMINARY DATASHEET
Features
ï¬ Number of keys:
ï¬ Up to 24
ï¬ Technology:
ï¬ Patented charge-transfer (transverse mode), with frequency hopping
ï¬ Key outline sizes:
ï¬ 6 mm à 6 mm or larger (panel thickness dependent); different sizes and
shapes possible
ï¬ Key spacings:
ï¬ 8 mm or wider, center to center (panel thickness dependent)
ï¬ Electrode design:
ï¬ Two-part electrode shapes (drive-receive); wide variety of possible layouts
ï¬ Layers required:
ï¬ One layer (with jumpers), two layers (no jumpers)
ï¬ Electrode materials:
ï¬ PCB, FPCB, silver or carbon on film, ITO on film
ï¬ Panel materials:
ï¬ Plastic, glass, composites, painted surfaces (low particle density metallic
paints possible)
ï¬ Panel thickness:
ï¬ Up to 50 mm glass, 20 mm plastic (key size dependent)
ï¬ Key sensitivity:
ï¬ Individually settable via simple commands over communication interface
ï¬ Interface:
ï¬ SPI
ï¬ Signal processing:
ï¬ Self-calibration, auto drift compensation, noise filtering, Adjacent Key
Suppression® (AKS®) technology
ï¬ FMEA compliant design features
ï¬ IEC/EN/UL60730 compliant design features
ï¬ UL approval
ï¬ VDE compliance
ï¬ For use in both class B and class C safety-critical products
ï¬ Detects and Reports Key Failure
ï¬ Power:
ï¬ +3 V to 5 V
ï¬ Package:
ï¬ 32-pin 7 à 7 mm TQFP RoHS compliant
ï¬ 32-pin 5 à 5 mm QFN RoHS compliant
9632EXâAT42â12/13
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