ATMXT2113TD-ABVA1

Overview

The ATMXT2113TD-ABVA1 is an automotive-grade capacitive touchscreen controller from Microchip Technology's maXTouch series. It features a charge-transfer acquisition engine supporting up to 2112 X/Y nodes, enabling dual touchscreens with 16 concurrent touches. The device operates within a –40°C to +105°C temperature range and supports I²C (up to 1 MHz) and SPI (up to 8 MHz) interfaces. Key performance metrics include a typical report rate of ≥120 Hz for 10 touches and initial latency under 20 ms. It integrates advanced algorithms for palm recovery, lens bending noise suppression, and hover detection.

Feature Summary

• Automotive Grade: AEC-Q100 Qualified and developed following Automotive SPICE Level 3 certified processes.
• High Node Capacity: Supports up to 2112 nodes, allowing two separate touchscreens or combined sensor arrays.
• Advanced Sensing: Features moisture/water compensation, hover support, and Adjacent Key Suppression (AKS).
• Robust Interfaces: Includes I²C, SPI, and dedicated SPI debug interface for raw data access.

Applications

• Automotive infotainment systems requiring multi-touch interaction.
• Large curved or free-form display surfaces in vehicle dashboards.
• Safety-critical touch interfaces utilizing built-in diagnostic capabilities.

Procurement Notes

Verify the specific ordering suffix 'AB' confirms the extended temperature grade of –40°C to +105°C. Confirm packaging requirements, as this part number denotes tray supply; tape and reel options use the 'R' suffix. Ensure firmware version 2.0.AA compatibility with existing system configurations.

Selection Notes

Select this model over the '-AT' variant when operation above 85°C is required. The device supports both mutual and self-capacitance measurements for robust detection. Consider the 144-lead LQFP package dimensions (20x20x1.4 mm) for PCB layout constraints.

Part Context

This component belongs to the mXT2113TD-AT/mXT2113TD-AB 2.0 family. It utilizes Microchip’s patented capacitive sensing method coupled with a state-of-the-art CPU for high-accuracy tracking. The device is RoHS compliant and designed for integration with various front panel materials including glass and PET.

Replacement Considerations

The ATMXT2113TD-ATVA1 serves as a functional substitute but is limited to a –40°C to +85°C operating range. Verify that the lower thermal rating meets the application's environmental specifications before substitution.