Description:Four discrete outputs indicating individual key touchTechnology: Patented spread-spectrum charge-transfer (direct mode)Electrode Design: Simple self-capacitance style Electrode Materials: Etched copper, silver, carbon, Indium Tin Oxide (ITO)Electrode Substrates: PCB, FPCB, plastic films, glassPanel Materials: Plastic, glass, composites, painted surfaces (low particle density metallic paints possible)Panel Thickness: Up to 10 mm glass, 5 mm plastic (electrode size dependent)Key Sensitivity: Fixed key threshold, sensitivity adjusted via sample capacitor valuePatented Adjacent Key Suppression® (AKS®) technology to enable accurate key detectionInterface: Pin-per-key outputs, plus debug mode to observe sensor signalsMoisture Tolerance: Increased moisture tolerance based on hardware design and firmware tuningSignal Processing: Self-calibration, auto drift compensation, noise filteringApplications: Mobile, consumer, white goods, toys, kiosks, POSPower: 1.8 V – 5.5 VPackage: 20-pin 3 x 3 mm VQFN RoHS compliant