ATMXT2912TD-ATRVA1

Overview

The ATMXT2912TD-ATRVA1 is a maXTouch 2911-node touchscreen controller designed for automotive applications. It utilizes a charge-transfer acquisition engine and supports up to 41 X lines and 71 Y lines, enabling dual touchscreens or combined sensor arrays. The device operates within a temperature range of -40°C to +85°C (Grade 3) and features I2C and SPI interfaces. It supports up to 16 concurrent touches with high report rates and includes advanced algorithms for noise suppression, palm recovery, and gesture detection.

Feature Summary

• AEC-Q100 qualified and developed using Automotive SPICE Level 3 certified processes
• Supports up to 2911 nodes across two separate touchscreen panels or key arrays
• Integrated hover support for one-finger detection up to 20 mm and tracking up to 15 mm
• Includes lens bending and palm recovery algorithms to mitigate display noise and false touches

Applications

• Automotive infotainment systems requiring wide aspect ratio displays
• Advanced Driver Assistance Systems (ADAS) with integrated touch controls
• Multi-touch slider implementations in vehicle dashboards

Procurement Notes

Verify the ordering suffix 'R' confirms tape and reel packaging rather than standard tray supply. Confirm the 'AT' designation matches the required Grade 3 operating temperature range (-40°C to +85°C). Ensure firmware revision 2.0.AA compatibility with existing system configurations before procurement.

Selection Notes

Select this component when designing for large format displays exceeding standard node counts. The device supports flexible allocation of X/Y lines between touchscreens and keys. Verify that the host system can accommodate the 176-lead LQFP package dimensions and provides necessary voltage rails including XVdd up to 8.5V.

Part Context

This part belongs to the mXT2912TD-AT/AB 2.0 series. The 'ATRVA1' suffix indicates tape and reel packaging for the AT temperature grade. It is distinct from the AB variant which supports extended temperatures up to +105°C. The device replaces older generation controllers requiring higher node counts for ultra-wide screens.

Replacement Considerations

The ATMXT2912TD-ABVA1 serves as a direct replacement if an extended temperature range up to +105°C is required. Both parts share identical pinouts and functional specifications, differing only in thermal grading and packaging options.

FAQ

What is the maximum number of concurrent touches supported?

The controller supports up to 16 concurrent touches tracked in real time on a single touchscreen instance.

Does the device support hover detection?

Yes, it supports one-finger hover detection up to 20 mm and tracking up to 15 mm, as well as multiple finger hover detection.

What communication interfaces are available?

The device supports I2C slave interfaces (Standard, Fast, Fast-mode Plus) and SPI slave interface (up to 8 MHz).