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Product Detailed Parameters
- Description：IC MAXTOUCH TOUCHSCREEN CTLR BGA
- Series：maXTouch®
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Touchscreen：-
- Resolution (Bits)：-
- Interface：I2C, SPI
- Voltage Reference：Internal
- Voltage - Supply：3.3V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：117-UFBGA
- Supplier Device Package：117-UFBGA (9.5x7)
- Current - Supply：-
- Grade：-
- Qualification：-
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Overview
The ATMXT1066TD-NHUR002 is a maXTouch 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 with a nominal digital supply (Vdd) of 3.3V, analog supply (AVdd) of 3.3V, and digital I/O (VddIO) ranging from 1.8V to 3.3V. Internal voltage pumps provide high-voltage X line drive at 6.6V or 9.9V. It features I2C interfaces supporting Standard, Fast, Fast-mode Plus, and High Speed modes, alongside an SPI debug interface.
Feature Summary
- Supports mutual and self capacitance measurements with P2P mutual capacitance for sensitive multi-touch tracking.
- Includes moisture/water compensation to prevent false touches from condensation or drops up to 22 mm diameter.
- Features noise suppression technology capable of handling up to 240 V PP between 1 Hz and 1 kHz.
- Provides dual-boot OS support for Microsoft Windows and Android.
Applications
- On-cell and touch-on display integration for TFT, LCD, and OLED panels.
- Discrete sensor applications using glass or PET film-based materials.
- Systems requiring palm recovery algorithms and lens bending noise removal.
Procurement Notes
Verify the 'R' suffix indicates tape and reel packaging rather than standard tube or tray. Confirm the 'NHU' package designation corresponds to the 117-ball UFBGA non-HDI variant. Ensure firmware revision 1.0.AA compatibility requirements are met for the specific application stack-up.
Selection Notes
Select this component when a 117-ball UFBGA package is required instead of the 114-ball alternative. Verify that the system design accommodates the 1.8V to 3.3V VddIO range. Confirm that the 1066 node capacity aligns with the intended touchscreen electrode pitch and size specifications.
Part Context
This part belongs to the mXT1066TD series, which implements Microchip's patented capacitive sensing method. The device is designed for industrial temperature ranges (-40°C to +85°C) and includes dedicated output pins for touch sensor diagnostics during runtime.
Replacement Considerations
ATMXT1066TD-C2U001 offers identical functionality in a 114-ball UFBGA package. ATMXT1066TD-NHU001 provides the same 117-ball package but in standard tube/tray packaging instead of tape and reel.
FAQ
What is the maximum number of concurrent touches supported?
The controller can track up to 16 concurrent touches in real time.
Does the device support stylus input?
Yes, it supports passive stylus with a 1.5 mm contact diameter, subject to configuration and sensor design.
How does the device handle ambient noise?
It employs noise suppression technology to combat ambient, charger, and power-line noise, supporting up to 20 V PP between 1 kHz and 1 MHz.
