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:

● I2C-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