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STMPE811 Datasheet 8-bit port expander

Manufacturer: STMicroelectronics

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General Description

The STMPE811 is a GPIO (general purpose input/output) port expander able to interface a main digital ASIC via the two-line bidirectional bus (I2C).

A separate GPIO expander is often used in mobile multimedia platforms to solve the problems of the limited amount of GPIOs typically available on the digital engine.

The STMPE811 offers great flexibility, as each I/O can be configured as input, output or specific functions.

Overview

STMPE811 8-bit port expander with advanced touchscreen controller Preliminary.

Key Features

  • 8 GPIOs www. DataSheet4U. com.
  • 1.8 - 3.3 V.
  • operating voltage Integrated 4-wire touchscreen controller Interrupt output pin Wakeup feature on each I/O SPI and I2C interface Up to 2 devices sharing the same bus in I2C mode (1 address line) 8-input 12-bit ADC 128-depth buffer touchscreen controller Touchscreen movement detection algorithm 25 kV air-gap ESD protection (system level) 4 kV HBM ESD protection (device level) QFN16 D.

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