ATMXT2952TD-C2UR002

Overview

The ATMXT2952TD-C2UR002 is a maXTouch touchscreen controller from Microchip Technology, designed for high-performance capacitive sensing. It features a unique charge-transfer acquisition engine and supports up to 41 X (transmit) and 71 Y (receive) lines, allocating a maximum of 2911 nodes for touch sensors or keys. The device operates with digital Vdd at 3.3V nominal, digital I/O (VddIO) ranging from 1.8V to 3.3V in I2C mode, and analog AVdd at 3.3V nominal. It interfaces via I2C (up to 3.4 MHz High Speed) or USB HID and is housed in a 162-ball UFBGA package measuring 10 × 5 × 0.6 mm.

Feature Summary

• Supports up to 16 concurrent touches with a typical report rate ≥110 Hz and initial touch latency <20 ms.
• Includes moisture/water compensation for false touch prevention and stylus support for passive inputs.
• Features encrypted configuration parameters and touch coordinate reports using customer-defined security keys.
• Provides PWM signal generation for display backlight control, speaker output, or haptic feedback.

Applications

• Mid-sized industrial displays ranging from 12.1 to 23.8 inches.
• On-cell and touch-on-display solutions for OLED and LCD panels.
• Discrete or out-cell sensor applications using glass or PET film-based materials.

Procurement Notes

Verify the ordering suffix 'R' confirms tape and reel packaging, distinct from tray-supplied variants. Confirm firmware revision 2.0.AA compatibility with existing tuning tools. Ensure interface requirements match either I2C or USB HID modes, as voltage levels differ between these configurations.

Selection Notes

Select this model for designs requiring up to 2911 sensor nodes and robust noise suppression in industrial environments. Verify that the host system supports the required I2C speeds or USB HID protocols. Consider the 1.8V to 3.3V I/O flexibility if interfacing with lower voltage logic controllers in I2C mode.

Part Context

This component belongs to the maXTouch TD Series, specifically the 2952 variant optimized for larger touch areas. It utilizes Microchip's patented capacitive sensing method combined with adaptive sensing technology to enhance signal-to-noise ratios and tracking accuracy across various sensor stack-ups.

Replacement Considerations

ATMXT2952TD-C2U001 is a functionally equivalent part supplied in trays instead of tape and reel. Both share the same core specifications and package dimensions, differing only in shipping format.