STMPE321 Description
The STMPE321 is a 3-channel capacitive touch key controller. Capacitance measurement is implemented in fully optimized hardware. All 3 I/Os can be configured via an I2C bus to function as either capacitive touch key, or as GPIOs (general purpose I/O).
STMPE321 Key Features
- 1.95 V Internal regulator Interrupt output pin I2C interface (1.8 V operation, 3.3 V tolerant) 8 kV HBM ESD protection 4