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.