ATMXT1067TD-ATRI2CVAO

Overview

The ATMXT1067TD-ATRI2CVAO is an automotive-grade capacitive touchscreen controller from Microchip Technology. It supports up to 1066 nodes and tracks 16 concurrent touches with a report rate of up to 112 Hz for single-finger input. The device operates on a nominal 3.3 V supply, features I2C communication (up to 1 MHz), and includes an SPI debug interface. Packaged in a 128-lead TQFP, it functions within a temperature range of -40°C to +85°C.

Feature Summary

• AEC-Q100 qualified and developed following Automotive SPICE Level 3 processes
• Supports up to 16 concurrent multi-touch gestures with palm recovery algorithms
• Integrated noise suppression handling up to 240 V PP ambient interference
• Includes moisture/water compensation for reliable operation under condensation

Applications

• Automotive infotainment systems requiring CISPR 25 compliance
• Industrial control panels utilizing glass or PET front panels
• High-reliability touch interfaces needing real-time self-capacitance diagnostics

Procurement Notes

Verify the 'R' suffix confirms tape and reel packaging rather than standard trays. Confirm the 'AT' designation matches the required -40°C to +85°C operating grade. Ensure firmware version 1.0.AA compatibility with existing system configurations before procurement.

Selection Notes

Select this model for applications requiring high node counts and robust environmental noise immunity. Compare against the Grade 2 variant if higher temperature tolerance (+105°C) is necessary. Verify that the 128-lead TQFP package dimensions fit the target PCB layout constraints.

Part Context

This component belongs to the maXTouch Adaptive Sensing family. It utilizes a charge-transfer acquisition engine to measure mutual and self capacitance simultaneously. The device integrates a state-of-the-art CPU for rapid classification and tracking of touch events.

Replacement Considerations

The ATMXT1067TD-ATI2CVAO serves as the tray-packaged equivalent. For Grade 2 temperature specifications, consider the ATMXT1067TD-ABI2CVAO series.