STMPE811

STMicroelectronics' STMPE811 is a 4-wire resistive touch screen controller with a GPIO (general purpose input/output) port expander able to interface a microcontroller or a main digital ASIC via I2C or SPI serial interface. The STMPE811 offers great flexibility, as each I/O can be configured as input, output or specific functions. The touch screen controller is enhanced with a movement tracking algorithm to avoid excessive data, 128 x 32 bit buffer and a programmable active window feature.

Features

• Small package: QFN16 3 mm x 3 mm
• 12-bit ADC for high-resolution resistive touch screen
• 128-depth data buffer
• Advance movement tracking to reduce CPU/Bus utilization
• Window-masking function
• Fast I2C (400 KHz) or SPI (1 MHz) serial interface
• Up to 8 GPIO
• 8 addiditional ADC inputs
• 4 kV HBM ESD protection

Applications

• Portable media players
• Game consoles
• Mobile and smart phones