Features
■ 4 GPIOs (8 mA drive, 12 mA sink at 3.3 V)
■ 1 additional, general purpose 12-bit ADC
■ Operating voltage 1.65 - 3.6 V
■ Integrated 4-wire touchscreen controller, pendown/
real-time mode, fully-autonomous
■ 1 PWM controller
■ Auto-hibernation and low power
– Typ 0.5 μA in Hibernation mode
– Typ 100 μA in Active mode
■ Interrupt output pin (optional)
■ Reset input pin (optional)
■ Wake-up feature on each port configured as
GPIO input
■ I2C interface
■ 8 kV HBM, 1 kV CDM ESD protection on
X+/X-/Y+/Y-
■ 2 kV HBM, 250 V CDM ESD protection on all
other pins
Applications
■ Portable media players
■ Game consoles
■ Mobile and smart phones

Description
The STMPE812 is a 4-wire resistive touchscreen
controller with 4-bit port expander integrated.
The touchscreen controller is designed to be fully
autonomous, requiring only minimal CPU
intervention for sampling, filtering and preprocessing
operations.