MPR121
Key Features
- 1.71V to 3.6V operation
- 29 μA typical run current at 16 ms sampling interval
- 3 μA in scan stop mode current
- 12 electrodes/capacitance sensing inputs in which 8 are multifunctional for LED driving and GPIO
- Integrated independent autocalibration for each electrode input
- Autoconfiguration of charge current and charge time for each electrode input
- Separate touch and release trip thresholds for each electrode, providing hysteresis and electrode independence
- I2C interface, with IRQ Interrupt output to advise electrode status changes
- 3 mm x 3 mm x 0.65 mm 20 lead QFN package
- -40°C to +85°C operating temperature range Implementations
