ATMXT144U-MAUR025

Overview

The ATMXT144U-MAUR025 is a maXTouch touchscreen controller manufactured by Microchip Technology. It supports up to 144 reconfigurable touch nodes, enabling flexible configurations for various display sizes and aspect ratios. The device integrates capacitive sensing for touch, gesture, and proximity detection. It operates within a supply voltage range of 3.14 V to 3.47 V and functions across an industrial temperature range from -40°C to +105°C. Communication with the host system is facilitated through I2C and SPI interfaces. The component is housed in a VQFN-56 package suitable for surface-mount assembly.

Feature Summary

• Supports up to 144 reconfigurable touch nodes for customizable touch interfaces
• Dual interface support for I2C and SPI communication protocols
• Industrial operating temperature range from -40°C to +105°C
• Integrated firmware authentication for secure updates

Applications

• Automotive infotainment systems requiring robust touch control
• Industrial HMI panels needing wide temperature operation
• Consumer electronics with multi-touch display requirements

Procurement Notes

Verify the specific suffix MAUR025 against official Microchip documentation to confirm pinout and firmware compatibility. Check current availability status as distribution may vary by region. Ensure ESD protection measures are followed during handling due to the sensitive nature of capacitive touch controllers.

Selection Notes

Select this model when a high node count is required for large or complex touch surfaces. Compare power consumption specifications against system battery constraints. Verify that the host processor supports the required I2C or SPI clock speeds for optimal performance.

Part Context

This part belongs to the maXTouch family of touchscreen controllers from Microchip Technology. These devices are designed to replace discrete touch solution components by integrating sensing, processing, and communication capabilities into a single chip. The maXTouch series is widely used in applications demanding reliable touch input with low power consumption.

Replacement Considerations

Consult Microchip's official cross-reference tools for direct replacements. Consider newer generations like the M1 series for enhanced functional safety features if automotive certification is required. Verify pin-to-pin compatibility before substituting with other maXTouch variants.