STMPE1208S Key Features
- 12 touchkey capacitive sensor inputs
- 12-bit general purpose input/output (GPIO)
- 5.5 V 98 μA in active mode, 60 μA in idle mode Dual interrupt output pin I2C interface (up to 400 kHz) 7 kV HBM ESD prot
STMPE1208S is Xpander Logic manufactured by STMicroelectronics.
| Part Number | Description |
|---|---|
| STMPE1601 | 16-bit enhanced port expander |
| STMPE2401 | 24-bit Enhanced port expander |
| STMPE2403 | 24-bit Enhanced port expander |
| STMPE811 | 8-bit port expander |
| STMPE821 | 8-bit Xpander Logic |
The STMPE1208S is a 12-channel GPIO capacitive touchkey sensor able to interface a main digital ASIC via the two-line bidirectional bus (I2C). It senses changes in capacitance using a fully digital architecture, giving fast and accurate results at very low power consumption. Automatic impedance calibration ensures that changes in environment will never affect the correct operation of the capacitive touchkeys.