ATMXT1067TD-ATSPIVAO

Overview

The ATMXT1067TD-ATSPIVAO is an automotive-grade touchscreen controller from Microchip Technology's maXTouch Adaptive Sensing series. It features a unique charge-transfer acquisition engine and supports up to 1066 X/Y nodes, enabling tracking of up to 16 concurrent touches at report rates up to 112 Hz for single-finger input. The device operates on 3.3 V supplies with an internal 6.6 V pump for X-line drive. It utilizes SPI slave communication (up to 8 MHz) and includes dedicated interrupt and debug interfaces. Packaged in a 128-lead TQFP, it functions within a temperature range of –40°C to +85°C.

Feature Summary

• AEC-Q100 qualified with Automotive SPICE Level 3 certified processes
• Supports up to 1066 nodes with 16 concurrent touch tracking
• Integrated noise suppression handling up to 240 V PP ambient noise
• Moisture compensation prevents false touches from condensation or water drops

Applications

• Automotive infotainment systems requiring high reliability
• In-vehicle displays supporting glass or PET film sensors
• Safety-critical interface applications with runtime diagnostics

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Confirm that the SPI variant aligns with system interface requirements. Check for RoHS compliance status and ensure the 128-lead TQFP footprint matches the design layout. Validate operating voltage compatibility with the host processor.

Selection Notes

Select this component when AEC-Q100 qualification and high node count are required for automotive displays. Ensure the host system supports SPI slave communication up to 8 MHz. Verify that the 128-lead TQFP package fits the PCB constraints. Consider the –40°C to +85°C operating range for standard automotive interior environments.

Part Context

This part belongs to the mXT1067TD-Ax SPI Variant family, specifically designed for automotive applications. It differs from non-automotive variants by meeting AEC-Q100 standards and utilizing Automotive SPICE Level 3 development processes. The 'AT' suffix denotes the Grade 3 temperature range, while 'SPIV' indicates the SPI interface configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip directly for alternative components or updated revisions within the maXTouch Adaptive Sensing portfolio.