ATMXT2912TD-ABRUWVAO

Overview

The ATMXT2912TD-ABRUWVAO is a maXTouch touchscreen controller from Microchip Technology, designed for automotive applications. It operates within a temperature range of -40°C to +105°C (Grade 2) and utilizes a 176-lead LQFP package measuring 24 × 24 × 1.4 mm. The device supports I2C interfaces up to 1 MHz and SPI up to 8 MHz. It features AEC-Q100 qualification and Automotive SPICE Level 3 development processes. Key capabilities include tracking up to 16 concurrent touches, supporting single ultrawide screens up to 34 inches, and providing noise suppression against ambient interference.

Feature Summary

• AEC-Q100 qualified with Automotive SPICE Level 3 certified development processes
• Supports up to 16 concurrent multi-touch points with real-time tracking
• Enables single ultrawide touchscreens up to 34 inches (7:1 aspect ratio)
• Integrated moisture compensation for reliable operation with water drops up to 22 mm diameter

Applications

• Automotive infotainment systems requiring ASIL-B related FMEDA compliance
• Large format displays utilizing PET or glass sensor materials
• Curved or non-rectangular sensor designs including circular profiles
• Displays with TFT, LCD (ITPS, IPS), or OLED technologies

Procurement Notes

Verify the specific ordering suffix 'R' indicates tape and reel packaging rather than standard tray supply. Confirm that the AB designation corresponds to the Grade 2 operating temperature range of -40°C to +105°C. Ensure compatibility with the required 3.3V nominal power supplies for Vdd, VddIO, and AVdd before procurement.

Selection Notes

Select this component when an automotive-grade controller is required for large ultrawide displays exceeding standard aspect ratios. The Grade 2 temperature rating suits environments where ambient temperatures may exceed 85°C. Verify that the system design accommodates the 176-lead LQFP footprint and supports the necessary I2C or SPI communication speeds for the application's report rate requirements.

Part Context

This part belongs to the mXT2912TD-AxUW family, which implements Microchip’s patented capacitive sensing method using a charge-transfer acquisition engine. The device integrates mutual and self-capacitance measurements to enhance touch accuracy. It includes on-chip gesture reporting and enhanced algorithms for lens bending and palm recovery to improve user experience in complex display stacks.

Replacement Considerations

The ATMXT2912TD-ATRUWVAO serves as a functional substitute with identical electrical characteristics but differs in operating temperature grade (-40°C to +85°C). Both parts utilize the same 176-lead LQFP package and support tape and reel packaging options.