ATMXT1066TD-NHUR001

Overview

The ATMXT1066TD-NHUR001 is a maXTouch TD Series touchscreen controller utilizing a charge-transfer acquisition engine for capacitive sensing. It supports up to 41 X and 26 Y lines, allocating a maximum of 1066 nodes for touch sensors. The device operates within an industrial temperature range of –40°C to +85°C and features I2C interfaces supporting Standard (100 kHz), Fast (400 kHz), Fast-mode Plus (1 MHz), and High Speed (3.4 MHz) modes. Power supplies include nominal 3.3V for digital/analog domains and 1.8V to 3.3V for I/O.

Feature Summary

• Supports up to 16 concurrent touches with a typical report rate ≥85 Hz and initial latency <20 ms
• Integrated moisture compensation handles condensation or water drops up to 22 mm diameter without false touches
• Noise suppression technology mitigates ambient, charger, and power-line noise up to 240 V PP (1 Hz–1 kHz)
• Includes lens bending algorithms and palm recovery for enhanced display integration

Applications

• On-cell and touch-on-display implementations for TFT, LCD, and OLED panels
• Discrete sensor applications using glass or PET film-based substrates
• Systems requiring dual-boot support for Microsoft Windows and Android operating systems

Procurement Notes

Verify the NHU package designation corresponds to the 117-ball UFBGA non-HDI variant. Confirm the 'R' suffix indicates tape and reel packaging rather than standard tray supply. Ensure firmware revision 1.0.AA compatibility requirements are met for the target application design.

Selection Notes

Select this component when a high node count up to 1066 is required for large panel sizes, such as 12.4-inch displays. Choose the NHU package for non-HDI board designs. Verify that the host system supports the required I2C clock speeds and voltage levels for AVdd and VddIO domains.

Part Context

This part belongs to the Microchip maXTouch TD Series, designed for advanced capacitive sensing solutions. The NHU suffix identifies the specific 117-ball UFBGA package configuration, while the R suffix denotes tape and reel shipping. It serves as a high-performance controller for complex multi-touch interfaces in consumer electronics.

Replacement Considerations

ATMXT1066TD-C2UR001 offers identical functionality in a 114-ball UFBGA package. Designers must account for pinout differences and physical footprint changes when substituting between the C2 and NHU package variants.