ATMXT2113TD-ABRVA3

Overview

The ATMXT2113TD-ABRVA3 is an automotive-grade maXTouch touchscreen controller featuring a charge-transfer acquisition engine for high-accuracy multi-touch tracking. It supports up to 2112 nodes, enabling configurations with 33 transmit and 64 receive lines. The device operates within a -40°C to +105°C temperature range and utilizes a 144-lead LQFP package. Electrical specifications include nominal 3.3V supplies for digital, I/O, and analog domains, with an external high-voltage drive (XVdd) up to 8.5V. Communication interfaces include I2C (up to 1 MHz) and SPI (up to 8 MHz).

Feature Summary

• AEC-Q100 qualified with CISPR 25 compliance for automotive EMC requirements.
• Supports up to 16 concurrent touches with typical report rates ≥90 Hz.
• Integrated moisture compensation handles condensation or water drops up to 22 mm diameter.
• Includes on-chip gesture detection and enhanced algorithms for palm recovery and display noise suppression.

Applications

• Automotive infotainment displays supporting on-cell or touch-on-display technologies.
• Large format curved or free-form touch panels requiring robust environmental performance.
• Safety-critical interface applications utilizing automatic sensor diagnostics.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's Product Identification System documentation. Confirm that the required packaging format matches the available options, as the base model may be supplied in trays while the tape and reel variant carries a distinct suffix. Ensure compatibility with the specified Grade 2 operating temperature range during component selection.

Selection Notes

Select this controller for designs requiring high node counts and automotive certification. Verify that the host system supports the required I2C or SPI interface speeds. Ensure the power supply design accommodates the 3.3V nominal rails and the separate 8.5V maximum drive voltage for the X-lines. Confirm that the PCB layout adheres to the recommended land pattern for the 144-lead LQFP package.

Part Context

This component belongs to the maXTouch Adaptive Sensing Technology family, specifically the mXT2113TD series. It represents firmware revision 5.0.AA. The device integrates a state-of-the-art CPU with capacitive sensing capabilities, distinguishing it from earlier generations by offering advanced noise suppression and flexible sensor pattern support for modern display architectures.

Replacement Considerations

Direct replacements must maintain AEC-Q100 qualification and similar node counts. Review the Product Identification System table for alternative packaging options such as tray-supplied versions. Cross-reference pinouts and electrical characteristics with other maXTouch controllers to ensure functional equivalence in existing designs.

FAQ

What is the maximum number of concurrent touches supported?

The device supports up to 16 concurrent touches tracked in real time.

How does the controller handle water interference?

It features moisture compensation that prevents false touches from condensation or water drops up to 22 mm in diameter while maintaining one-finger tracking.

What are the supported communication interfaces?

The controller supports I2C interfaces up to 1 MHz (Fast-mode Plus) and SPI interfaces up to 8 MHz.