Touch Screen Controller 12-Pin CSP T/R

The STMPE812A 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.

• Integrated 4-wire resistive touchscreen controller, pen-down/real-time mode, fullyautonomous
• 12-bit ADC for high-resolution touchscreen
• Operating voltage 1.65 - 3.6 V
• Low power consumption:
  • Hibernation mode: 0.5 µA
  • Active mode: 100 µA
• Auto-hibernation and hotkey wake-up features
• Up to 3 GPIOs with alternate functions
  • 1 PWM controller
  • 1 general purpose 12-bit ADC input
  • Optional interrupt output pin
• Dedicated reset input pin
• 400 kHz 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