ATMXT1067TD-ABI2CVAO

Overview

The ATMXT1067TD-ABI2CVAO is an automotive-grade maXTouch touchscreen controller designed for high-performance capacitive sensing. It supports up to 1066 nodes and tracks 16 concurrent touches with a typical report rate of ≥85 Hz. The device operates within a temperature range of –40°C to +105°C (Grade 2) and utilizes I2C communication at speeds up to 1 MHz. Powered by a nominal 3.3 V supply, it features advanced noise suppression, water compensation, and palm recovery algorithms. Packaged in a 128-lead TQFP, it meets AEC-Q100 qualification and Automotive SPICE Level 3 standards.

Feature Summary

• AEC-Q100 qualified and developed following Automotive SPICE Level 3 certified processes
• Supports up to 1066 nodes with 16 concurrent touch tracking and ≤20 ms initial latency
• Advanced environmental robustness including moisture/water compensation and glove support
• Integrated SPI debug interface for raw data access and automatic sensor diagnostics

Applications

• Automotive infotainment displays
• Vehicle instrument clusters
• Digital cockpit interfaces

Procurement Notes

Verify the specific ordering suffix against the Product Identification System table to confirm the package type and temperature grade. The ABI2CVAO variant corresponds to Grade 2 operation (-40°C to +105°C) in standard tray packaging. Confirm firmware revision compatibility and ensure the design adheres to the recommended land pattern specifications for the 128-lead TQFP package.

Selection Notes

Select this component for applications requiring Grade 2 automotive temperature ratings and high node counts. The 'AB' suffix indicates the extended temperature range compared to the 'AT' variant. Ensure the host system supports the required I2C Fast-mode Plus speeds and provides the necessary 3.3 V digital and analog power rails. Consider the internal voltage pump requirements for the X line drive when designing the power supply network.

Part Context

This part belongs to the maXTouch TD series, which utilizes a unique charge-transfer acquisition engine. The mXT1067TD specifically targets larger display sizes, supporting screens up to 12.1 inches with a 16:10 aspect ratio. It integrates both mutual and self-capacitance measurements to enhance touch reliability in noisy automotive environments.

Replacement Considerations

The ATMXT1067TD-ATI2CVAO serves as the functional equivalent with a reduced operating temperature range of –40°C to +85°C (Grade 3). Both variants share identical pinouts and electrical characteristics outside the thermal limits.