ATMXT2952TD-C2UREN1

Overview

The ATMXT2952TD-C2UREN1 is a maXTouch touchscreen controller featuring a charge-transfer acquisition engine for high-accuracy multi-touch tracking. It supports up to 41 X and 71 Y lines, allocating a maximum of 2911 nodes for sensors or keys. The device operates on a 3.3V digital/analog supply with 1.8V to 3.3V I/O and includes I2C and USB HID interfaces. It provides simultaneous mutual and self-capacitance measurements, supporting up to 16 concurrent touches with a typical report rate of ≥110 Hz.

Feature Summary

• Supports up to 2911 nodes across 41 transmit and 71 receive lines
• Includes I2C (up to 3.4 MHz) and USB HID communication interfaces
• Features moisture compensation for water drops up to 22 mm diameter
• Provides encrypted configuration parameters and touch coordinate reports

Applications

• Industrial displays ranging from 12.1 to 23.8 inches
• On-cell and touch-on-display implementations for OLED and LCD panels
• Discrete out-cell sensor applications using glass or PET film materials

Procurement Notes

Verify the specific ordering suffix 'EN1' against official Microchip documentation to confirm pattern requirements. Confirm package availability as tape and reel options may differ from standard tube packaging. Ensure compatibility with the ATEVK-MXT2952TD-A development kit for initial tuning.

Selection Notes

Select this component for designs requiring high node counts and robust noise suppression in industrial environments. Verify that the host processor supports the required I2C speeds or USB HID protocols. Ensure the application stack-up allows for the specified glass thicknesses and glove operation capabilities.

Part Context

This part belongs to the ATMXT2952TD family within the maXTouch TD series. It utilizes firmware revision 2.0.AA and is housed in a 162-ball UFBGA package measuring 10 × 5 × 0.6 mm. The device is designed for industrial temperature ranges from -40°C to +85°C.

Replacement Considerations

ATMXT2952TD-C2U002 serves as a tray-packaged alternative within the same family. Verify pinout and firmware compatibility before substitution.