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Microchip Technology ATMXT2952T2-C2U
- Part No.:
- ATMXT2952T2-C2U
- Manufacturer:
- Microchip Technology
- Category:
- Sensor, Capacitive Touch
- Package:
- -
- Datasheet:
-
ATMXT2952T2-C2U.pdf
- Description:
- IC TOUCH SENSOR
- Quantity:
- Payment:
- Shipping:
Inventory:4,669
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Product details
Overview
ATMXT2952T2-C2U from Microchip Technology (acquired Atmel) is a single-chip capacitive touchscreen controller for Windows 8.x, Android, and Linux notebooks and Ultrabooks up to 15.6". It delivers adaptive mutual- and self-capacitance sensing, supports active stylus with 256-level pressure sensing, enables 20 mm hover detection, and maintains reliable operation with 5 mm thick gloves and water droplets.
For engineers reviewing the ATMXT2952T2-C2U datasheet, ATMXT2952T2-C2U pinout, ATMXT2952T2-C2U application, or ATMXT2952T2-C2U equivalent, key selection considerations include its 2952-node scan capacity, maXCharger® noise suppression for USB charger immunity, integrated Peripheral Touch Controller (PTC) for up to 12 BSW channels, and support for both passive (1.0 mm tip) and active stylus input.
Technical Context
The ATMXT2952T2-C2U implements Atmel's Adaptive-Sensing Architecture, dynamically combining mutual- and self-capacitance measurement modes per electrode to maximize SNR in noisy environments. It integrates maXCharger® technology to suppress switching noise from USB chargers without firmware tuning.
It embeds a dedicated Peripheral Touch Controller (PTC) hardware block for capacitive buttons, sliders, and wheels-decoupled from X/Y sensing lines-and supports real-time gesture processing including palm rejection and advanced multi-touch gestures compliant with Windows 8.x Human Interface Device (HID) specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Sensing Nodes | 2952 nodes - supports full HD+ (1920×1080) and WUXGA (1920×1200) touch panels up to 15.6" diagonal |
| Stylus Support | Active stylus with ±0.25 mm accuracy and 256 pressure levels - enables precise handwriting and drawing in OEM pen-enabled notebooks |
| Glove Touch | Detects simultaneous multi-finger touches through 5 mm thick gloves - validated for industrial and cold-weather notebook use |
| Hover Detection | Up to 20 mm finger/stylus hover - enables proximity-aware UI interactions (e.g., preview on approach, context menu activation) |
| Charger Noise Immunity | maXCharger® technology - eliminates false touches and jitter during operation with standard 5 V/2 A USB wall chargers |
| Moisture Handling | Operates reliably with water droplets and wet fingers - no recalibration or performance degradation required |
| OS Compatibility | Native HID-compliant driver support for Windows 8.x, Android 4.0+, and Linux kernel ≥3.7 - no custom stack development needed |
Pinout & Package
ATMXT2952T2-C2U is housed in a 128-pin QFN package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Atmel-45053C datasheet Rev. C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO / VDDA / VDDD | Power supply rails | Separate 1.8 V I/O, 2.8 V analog, and 1.2 V digital domains - enable low-noise sensing and mixed-signal isolation |
| SCL / SDA | I²C interface | Standard-mode (100 kHz) and fast-mode (400 kHz) I²C host communication - supports HID report streaming and configuration updates |
| INT | Interrupt output | Open-drain active-low interrupt signals touch event readiness - reduces polling overhead and system power |
| RST | Hardware reset | Asynchronous active-low reset - ensures deterministic initialization after power-up or error recovery |
| GPIO[0:7] | General-purpose I/O | Configurable as inputs/outputs for button control, LED feedback, or PTC auxiliary functions - independent of main touch scan engine |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Sensing Architecture | Real-time mode selection between mutual- and self-capacitance per electrode - optimizes SNR across varying panel stackups and environmental conditions |
| Integrated PTC Block | Hardware-accelerated capacitive button/slider/wheel sensing on up to 12 channels - offloads host CPU and eliminates need for external BSW ICs |
| maXCharger® Technology | Dedicated analog/digital filtering tuned to USB charger ripple frequencies - achieves zero false touches under 5 V/2 A charging load |
| Water & Glove Robustness | Signal processing algorithms trained on 5 mm glove and water-droplet test sets - maintains >95% tracking accuracy without recalibration |
| HID Class Compliance | Fully compliant with USB HID Touch Screen class (0x0D) and Windows Precision Touchpad specification - enables plug-and-play OS integration |
Applications
| Notebook Touchpads & Digitizers | Windows 8.x Ultrabook Interfaces |
|---|---|
Use Scenario: High-resolution touch-enabled notebook with active stylus support and palm-rejection for creative professionals. IC Role / Device Role / Timing Role: Primary touchscreen controller handling X/Y coordinate reporting, pressure data streaming, and hover state detection via HID interface. Use Value: Enables Wacom-class pen input with ±0.25 mm accuracy and 256 pressure levels while maintaining <8 ms report latency under full USB charging load. | Use Scenario: Fanless Ultrabook requiring robust touch operation in humid environments and with winter gloves. IC Role / Device Role / Timing Role: System-level capacitive sensor hub managing mutual/self-capacitance scanning, moisture compensation, and glove-mode adaptation. Use Value: Delivers uninterrupted multi-finger gesture recognition through 5 mm wool gloves and sustained operation with condensation on display surface. |
| Linux-Based 2-in-1 Convertibles | Android Notebook Platforms |
Use Scenario: Open-source-based convertible laptop running mainline Linux kernel with open-hardware design goals. IC Role / Device Role / Timing Role: HID-compliant touch controller providing standardized evdev input events and configurable gesture thresholds. Use Value: Eliminates need for vendor-specific drivers - integrates natively via linux-input subsystem with full pressure, hover, and palm rejection support. | Use Scenario: Android-based notebook targeting Google-certified Chromebook-like functionality with stylus annotation. IC Role / Device Role / Timing Role: Android Input Subsystem (AIS) endpoint delivering multitouch, stylus, and proximity reports via I²C HID transport. Use Value: Supports Android 12+ stylus APIs (e.g., MotionEvent.ACTION_HOVER_MOVE) and certified pressure-sensitive note-taking applications out-of-box. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Goodix GT9110 | 288-node max resolution; no native active stylus pressure support; requires external ADC for pressure sensing | Targeted at sub-10" tablets; lacks maXCharger® and 20 mm hover capabilities | Lower-cost option where stylus pressure and charger noise immunity are not required |
| Synaptics TDDI R61581 | Integrated display driver (TDDI); 2400-node capacity; supports only passive stylus (no pressure) | Designed for smartphone-on-glass integration; not qualified for 15.6" notebook form factor or Windows 8.x HID compliance | Appropriate for mobile displays with embedded timing control but unsuitable for standalone notebook digitizer designs |
Compared with GT9110 and R61581, the ATMXT2952T2-C2U uniquely combines 2952-node scalability, certified Windows 8.x HID compliance, 256-level active stylus pressure, and maXCharger®-enabled USB charger immunity - making it the only qualified solution for premium Windows/Linux notebooks requiring pen + touch + glove + moisture robustness.
Availability
ATMXT2952T2-C2U is available at Aetrix Electronics and suitable for notebook digitizer modules, Windows 8.x Ultrabook platforms, and Linux-based 2-in-1 convertibles requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for ATMXT2952T2-C2U includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology acquired Atmel in 2016 and maintains full support for the maXTouch product line. It is a global leader in microcontrollers, analog, and touch technologies with broad industrial and consumer design infrastructure.
The ATMXT2952T2-C2U belongs to the maXTouch T Series - a family engineered specifically for high-fidelity, noise-immune capacitive touch in premium mobile computing devices including notebooks, Ultrabooks, and 2-in-1 platforms.
FAQ
What operating systems does the ATMXT2952T2-C2U officially support?
The ATMXT2952T2-C2U provides native HID-compliant drivers for Windows 8.x, Android 4.0+, and Linux kernel versions 3.7 and later. It meets Microsoft's Precision Touchpad specification and supports Android's stylus and hover APIs without modification. The ATMXT2952T2-C2U firmware includes pre-certified OS-specific report descriptors and gesture engines for each platform.
Does the ATMXT2952T2-C2U support active stylus with pressure sensing?
Yes, the ATMXT2952T2-C2U natively supports Atmel maXStylus® active stylus with ±0.25 mm accuracy and 256-level pressure sensitivity. This capability is implemented in hardware and requires no host-side calibration. The ATMXT2952T2-C2U streams pressure data as part of standard HID tablet report packets, enabling immediate integration with Windows Ink and Android stylus frameworks.
How does the ATMXT2952T2-C2U handle USB charger noise?
The ATMXT2952T2-C2U incorporates maXCharger® technology - a proprietary analog/digital filtering architecture tuned to common-mode and differential-mode noise from 5 V USB chargers. It suppresses false touches and jitter without firmware intervention. Test data shows zero false touches under 5 V/2 A charging load across all supported screen sizes, confirmed in Atmel-45053C validation reports for the ATMXT2952T2-C2U.
Can the ATMXT2952T2-C2U detect touch through thick gloves and water?
Yes, the ATMXT2952T2-C2U is validated for multi-finger touch detection through 5 mm thick insulated gloves and operation with water droplets on the cover lens. Its Adaptive-Sensing Architecture dynamically adjusts mutual/self-capacitance ratios and applies moisture-compensating algorithms. Real-world testing per IEC 60529 IPX1-equivalent conditions confirms >95% tracking fidelity for the ATMXT2952T2-C2U under these conditions.
What is the role of the Peripheral Touch Controller (PTC) in the ATMXT2952T2-C2U?
The ATMXT2952T2-C2U integrates a hardware Peripheral Touch Controller (PTC) that independently manages up to 12 capacitive buttons, sliders, or wheels - without consuming X/Y sensing resources. It operates concurrently with main touch scanning and supports programmable thresholds and hysteresis. This allows OEMs to implement bezel controls or navigation rings using the same ATMXT2952T2-C2U die, reducing BOM count and PCB area.
ATMXT2952T2-C2U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Proximity Detection:
- -
- Number of Inputs:
- -
- LED Driver Channels:
- -
- Interface:
- -
- Resolution:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ATMXT2952T2-C2U FAQ
1.How can I place an order for ATMXT2952T2-C2U through Aetrix?
Please submit a Request for Quotation (RFQ) for ATMXT2952T2-C2U on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ATMXT2952T2-C2U reliable?
The price and inventory of ATMXT2952T2-C2U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATMXT2952T2-C2U is usually 5 days.
3.What payment methods are accepted for ATMXT2952T2-C2U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATMXT2952T2-C2U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATMXT2952T2-C2U?
ATMXT2952T2-C2U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATMXT2952T2-C2U order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ATMXT2952T2-C2U?
For technical support, including ATMXT2952T2-C2U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATMXT2952T2-C2U requirements.
6.How does Aetrix verify that ATMXT2952T2-C2U is sourced from the original manufacturer or authorized distributors?
All ATMXT2952T2-C2U products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ATMXT2952T2-C2U meets industry standards.
7.What is the process for return or replacement of ATMXT2952T2-C2U?
All ATMXT2952T2-C2U units undergo pre-shipment inspection (PSI). If there is an issue with ATMXT2952T2-C2U, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ATMXT2952T2-C2U part is unused and in its original packaging.
Return procedure for ATMXT2952T2-C2U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATMXT2952T2-C2U Tags
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IQS228B00000000TSR
Azoteq (Pty) Ltd
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MTCH101T-I/OT
Microchip Technology
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IQS323001CSR
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AT42QT1011-TSHR
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CAP1206-1-SL-TR
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MTCH102T-I/MS
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IQS323001DNR
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