Description:Number of keys: Up to 24Technology: Patented charge-transfer (transverse mode), with frequency hopping Key outline sizes: 6 mm × 6 mm or larger (panel thickness dependent); different sizes and shapes possibleKey spacings: 8 mm or wider, center to center (panel thickness dependent)Electrode design: Two-part electrode shapes (drive-receive); wide variety of possible layoutsPCB Layers required: One layer (with jumpers), two layers (no jumpers)Electrode materials: PCB, FPCB, silver or carbon on film, ITO on filmPanel materials: Plastic, glass, composites, painted surfaces (low particle density metallic paints possible)Panel thickness: Up to 50 mm glass, 20 mm plastic (key size dependent)Key sensitivity: Individually settable via simple commands over communication interfaceInterface: I2C (please use AT42QT1245 for SPI)Signal processing: Self-calibration, auto drift compensation, noise filtering, Adjacent Key
Suppression® (AKS®) technologyFMEA compliant design featuresUL approvalVDE complianceFor use in both class B and class C safety-critical productsDetects and Reports Key FailurePower supply: +3 V to 5 V32-pin 7 × 7 mm TQFP RoHS compliant32-pin 5 × 5 mm QFN RoHS compliantIEC/EN/UL60730 (Ed. 5.1) / IEC/EN 60335 (Ed. 5.2) compliant design features for use in both class B and class C safety-critical appliance products.