Features:*Low power operation.*1.71 V to 3.6 V supply operation.*29 μA supply current at 16 ms sampling interval period.*3 μA Stop mode current.*12 capacitance sensing inputs.*8 inputs are multifunctional for LED driver and GPIO.*Complete touch detection.*Auto-configuration for each sensing input.*Auto-calibration for each sensing input.*Touch/release threshold and debounce for touch detection.*I2C interface, with Interrupt output.*MPR121: 3 mm x 3 mm x 0.65 mm.*-40¡ãC to +85¡ãC operating temperature range.Package included:3 x MPR121 Proximity Capacitive Touch Sensor Board with Pins