DESCRIPTION

· The STMPE812A is a 4-wire resistive touchscreen controller with an integrated 4-bit port expander.

· It is designed to operate autonomously with minimal CPU intervention for sampling, filtering, and preprocessing.

· This document provides essential guidelines and information for the proper operation of the STMPE812A in various applications.

FEATURES

· Integrated 4-wire resistive touchscreen controller.

· Includes a 4-bit port expander for additional I/O functionality.

· Autonomous operation with minimal CPU intervention.

· Comprehensive hardware and software guidelines provided.

APPLICATIONS

· Suitable for embedded systems requiring touchscreen input.

· Ideal for applications needing additional I/O ports via the integrated port expander.

· Can be used in consumer electronics, industrial control panels, and other touch-sensitive devices.