Programmable Capacitance-to-Digital Converter (CDC)
- Maximum 8 capacitance sensor inputs
- 6 ms update rate, all 8 sensor stages (under decimation rate 64)
- No external RC components required

On-chip Automatic Calibration Logic
- Automatic calibration & compensation for environmental changes
- Automatic adaptive threshold and sensitivity levels

Operation Power  
- Power sources: VCCIO & AVCC 2.25V~5.5V
- Provides one internal power regulator for core power generation

Interface
- I2C Compatible Interface
- BCD
-Supports D/A Output
- Supports 1-to-1(1 Cin mapping to 1 I/O) Output

 With 1 GPIO for LED and Buzzer Driving

 Supports Dynamic Power Saving Mode
- Provides host special commands to switch between two operational modes: active and idle modes

Good Noise Immunity Capability Without Extra Component Required
- EFT: 4KV at 5KHz passed
- CS: no function effected at 10V(150Khz～230Mhz)
- ESD: contact up to 8KV, air up to 15KV

Good Water Proof
- No function affected by fog, drop or water