AT42QT1060-MMU Microchip

Atmel AT42QT1060 Six-channel QTouch Touch Sensor IC DATASHEET Features Configurations: Can be configured as a combination of keys and input/output lines Number of QTouch Keys: Two to six Number of I/O Lines: Seven, configurable for input or output, with PWM control for LED driving Technology: Patented spread-spectrum charge-transfer (direct mode) Key Outline Sizes: 6 mm x 6 mm or larger (panel thickness dependent) widely different sizes and shapes possible Layers Required: One Electrode Materials: Etched copper Silver Carbon Indium Tin Oxide (ITO) Panel Materials: Plastic Glass Composites Painted surfaces (low particle density metallic paints possible) Panel Thickness: Up to 10 mm glass (electrode size dependent) Up to 5 mm plastic (electrode size dependent) Key Sensitivity: Individually settable via simple commands over serial interface Interface: 2 I C-compatible slave mode (100 kHz). Discrete detection outputs Moisture Tolerance: Increased moisture tolerance based on hardware design and firmware tuning Signal Processing: Self-calibration auto drift compensation noise filtering Adjacent Key Suppression (AKS ) Applications: Mobile appliances Power: 1.8 V to 5.5 V Package: 28-pin 4 x 4 mm QFN RoHS compliant IC 9505HAT4204/20151. Pinout and Schematic 1.1 Pinout Configuration 27 26 24 22 28 25 23 1 21 IO2 SNS1K 2 20 SNS2K IO1 VDD 3 19 IO0 4 18 VSS VSS QT1060 5 17 IO5 VDD IO6 6 16 VDD SNS3K 715 SNS5 8 9 10 11 12 13 14 1.2 Pin Descriptions Table 1-1. Pin Allocation Pin Name Type Description If Unused, Connect To... 1 SNS1K I/O To Cs capacitor and to key Leave open 2 SNS2K I/O To Cs capacitor and to key Leave open 3 VDD P Positive power pin 4 VSS P Ground power pin 5 IO5 I/O I/O Port Pin 5 Leave open and set as output 6 IO6 I/O I/O Port Pin 6 Leave open and set as output 7 SNS3K I/O To Cs capacitor and to key Leave open 8 SNS4K I/O To Cs capacitor and to key Leave open 9 SNS5K I/O To Cs capacitor and to key Leave open 10 SNS0 I/O To Cs Capacitor Leave open 11 SNS1 I/O To Cs Capacitor Leave open 12 SNS2 I/O To Cs Capacitor Leave open 13 SNS3 I/O To Cs Capacitor Leave open AT42QT1060 DATASHEET 2 9505HAT4204/2015 SNS0K SNS4K IO4 SNS5K IO3 SNS0 RST SNS1 SCL SNS2 SDA SNS3 CHG SNS4