ATMXT336U-MAUR Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The ATMXT336U-MAUR is a projected capacitive touchscreen controller IC from Microchip's maXTouch family, supporting up to 336 sensing channels for high-resolution multi-touch detection. It communicates via I2C or SPI at up to 400 kHz and is housed in a compact QFN package for slim display modules. Designed for industrial HMI panels, medical monitors, and ruggedized consumer touchscreens requiring reliable gloved-touch and stylus support.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 57
- Lifecycle
- ACTIVE
- Datasheet
- ATMXT336U-MAUR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Up to 336 capacitive sensing channels for high-resolution multi-touch detection on large displays
- Supports gloved-touch, bare-finger, and passive stylus input for versatile HMI applications
- I2C and SPI interface up to 400 kHz for easy integration with embedded microcontrollers
- Compact QFN package enables thin bezel and slim display module designs
Applications
The ATMXT336U-MAUR is deployed in industrial human-machine interface (HMI) panels and factory automation terminals that require reliable 10-point multi-touch operation with gloved fingers in harsh environments. Its high channel count makes it suitable for large-format display modules from 7 inches to 15 inches diagonal, where fine-pitch sensing grids are needed for pixel-accurate touch coordinates. Medical device manufacturers also use it in patient monitoring displays and diagnostic tablet interfaces requiring stylus precision and chemical-resistant glass overlay compatibility.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many simultaneous touch points does the ATMXT336U-MAUR support, and what sensing channel count enables this?
The ATMXT336U-MAUR supports up to 10 simultaneous touch points using its 336 projected capacitive sensing channels, which are distributed across the X and Y electrode matrix of the connected touch sensor. With 336 channels, the controller can address large 10-inch to 15-inch display panels at a sensing pitch fine enough to resolve closely spaced fingertips within a few millimeters of each other.
Can the ATMXT336U-MAUR detect gloved-touch inputs for industrial applications?
Yes, the ATMXT336U-MAUR is specifically designed to detect touch through standard latex and rubber gloves up to approximately 2 mm thick, which is a requirement for industrial HMI terminals operating in manufacturing and process control environments. Its high-sensitivity capacitive measurement circuitry also supports passive stylus inputs, giving operators the choice between bare-finger, gloved, or tool-assisted interaction on the same 3.3 V powered panel.
What communication interface does the ATMXT336U-MAUR use to connect to a host processor?
The ATMXT336U-MAUR provides both I2C (up to 400 kHz fast-mode) and SPI interfaces for communication with a host microcontroller or application processor. I2C is the more common choice for space-constrained designs because it requires only 2 signal lines, while SPI at up to several MHz offers higher throughput for faster touch-event reporting in applications with 60 Hz or 120 Hz display refresh rates.
For what screen size range is the ATMXT336U-MAUR best suited, and how does channel count affect this?
With 336 sensing channels, the ATMXT336U-MAUR is optimally matched to display panels in the 7-inch to 15-inch diagonal range, where the electrode matrix typically requires 24 to 36 X-lines and a corresponding number of Y-lines. Smaller 4-inch to 5-inch panels would use a lower-channel maXTouch variant to minimize BOM cost, while panels exceeding 15 inches may require cascaded controllers or a higher-channel device to maintain sub-2 mm touch spatial resolution.
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