ATMXT224T-CCU027

Overview

The ATMXT224T-CCU027 is a capacitive touch screen controller from Microchip Technology's maXTouch family. It supports up to 224 nodes, enabling complex user interfaces with multiple keys, sliders, and gestures. The device integrates an ARM Cortex-M0 processor for on-chip processing of touch data, reducing host CPU load. It communicates via I2C or SPI interfaces and operates within a standard voltage range typical for embedded controllers. The component is designed for high reliability in consumer electronics applications requiring precise touch input.

Feature Summary

• Supports up to 224 configurable nodes for extensive touch interface layouts
• Integrates ARM Cortex-M0 core for local gesture recognition and processing
• Provides flexible communication through I2C and SPI serial interfaces
• Includes built-in self-test capabilities for manufacturing validation

Applications

• Consumer electronic devices requiring multi-touch input
• Industrial control panels with durable touch requirements
• Automotive infotainment systems needing reliable gesture support

Procurement Notes

Verify the specific suffix CCU027 against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing firmware configurations before procurement. Check for any recent product change notifications that may affect pinout or electrical characteristics. Confirm availability through authorized distributors as supply status varies by region.

Selection Notes

Select this model when a high node count is required for complex UI designs. Compare with lower node variants like ATMXT1664 if fewer inputs are needed to optimize cost. Ensure the host system supports the required I2C or SPI speeds. Verify power supply constraints match the controller's operating voltage specifications.

Part Context

This part belongs to the maXTouch T224 series, widely used in mid-to-high complexity touch applications. It succeeds earlier generations by offering improved noise immunity and processing power. The T224 architecture allows for scalable designs across various display sizes without changing the core controller logic significantly.

Replacement Considerations

Direct substitutes include other ATMXT224 variants with different suffixes for package or temperature changes. Cross-reference with ATMXT224T-CCU029 for potential pin-compatible alternatives. Always validate electrical parameters and firmware compatibility before swapping components.