ATMXT2952TD-C2UKD1

Overview

The ATMXT2952TD-C2UKD1 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 sensor arrays. The device operates with digital Vdd at 3.3V nominal, VddIO between 1.8V and 3.3V, and analog AVdd at 3.3V nominal. It interfaces via I2C (up to 3.4 MHz) or USB HID and includes an SPI debug interface. Packaged in a 162-ball UFBGA (10x5x0.6 mm), it functions within an operating temperature range of –40°C to +85°C.

Feature Summary

• Supports up to 16 concurrent touches with report rates ≥110 Hz and initial latency <20 ms
• Integrated moisture compensation handles condensation or water drops up to 22 mm diameter
• Includes enhanced algorithms for lens bending noise removal, palm recovery, and touch suppression
• Features encrypted configuration parameters and coordinate reports using customer security keys

Applications

• On-cell and touch-on-display implementations for OLED and LCD panels
• Discrete out-cell sensors utilizing glass or PET film materials
• Systems requiring passive stylus support with 1.5 mm contact diameter
• Applications needing PWM signal generation for backlight control or haptic feedback

Procurement Notes

Verify the specific suffix 'KD1' against official Microchip documentation to confirm pattern requirements. Standard orderable numbers typically use suffixes like '002'. Confirm tape and reel versus tray packaging availability directly with sales offices as suffix identifiers may dictate supply format.

Selection Notes

Select this component for designs requiring up to 2911 sensor nodes and simultaneous multi-touch capabilities. Ensure power supplies provide 3.3V for Vdd/AVdd and 1.8V–3.3V for VddIO. Verify that the host system supports either I2C or USB HID protocols for communication.

Part Context

This part belongs to the ATMXT2952TD family, which utilizes maXTouch Adaptive Sensing Technology. The base device supports both mutual and self-capacitance measurements to enhance touch reliability. It is designed for industrial grade applications with a specified temperature range of –40°C to +85°C.

Replacement Considerations

Standard orderable variants include ATMXT2952TD-C2U002 (tray) and ATMXT2952TD-C2UR002 (tape and reel). Verify if the 'KD1' suffix denotes a specific pattern or qualification requirement before substituting with standard stock numbers.