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Turnkey Multi-Finger Solutions for Robust and Reliable Touchpads and Touchscreens

Don’t compromise on touch performance when designing applications that incorporate a touchpad or touchscreen. Regardless of the conditions, maXTouch touchscreen controllers are designed for robust and reliable operation in challenging environments. They support single-finger, multi-finger and gloved-finger operation for screens up to 24” in diagonal size that are used in a variety of automotive, home appliance, medical and industrial applications.  Host serial I2C, SPI and USB communication interfaces are available across the product portfolio.

maXTouch touchscreen controllers that are designed for automotive applications are AEC-Q100 compliant, fully automotive qualified and are available in Grade 3 (−40 to +85°C) or Grade 2 (−40 to +105°C) variants. Intelligence added to the touch controller enables self- and sensor-diagnostic functions for constantly monitoring the integrity of the touch subsystem. These smart diagnostic features support the Automotive Safety Integrity Level (ASIL) classification index as defined by the ISO 26262 Functional Safety Specification for Passenger Vehicles. Automotive maXTouch touchscreen controllers are the first touch controllers to carry Automotive SPICE Level 3 certification, and they are available in TQFP, LQFP and VQFN packages.

Developing your innovative touchpad or touchscreen application is easy using maXTouch touchscreen controllers. They embed best-in-class and proven touch algorithms to simplify touch system development and significantly reduce time to market. If you need additional assistance, our global technical support team can provide you with answers to your questions.

Safety-Certified Capacitive Touchscreen Controllers

If you are developing a touchscreen-enabled home appliance or other functional safety application, our MXT336UD-HA1 family of maXTouch® touchscreen controllers is certified to the IEC/UL 60730 Class B specification to simplify the development and qualification of your product. Use these links to learn more about these new devices:

maXTouch® Studio

Create, design and tune your next innovative touchscreen. maXTouch Studio LITE is the Integrated Development Platform (IDP) for developing and debugging with our maXTouch touchscreen controllers, and it is available for use without requiring a Non-Disclosure Agreement (NDA).

Would You Like to Use a Microcontroller to Create Your 2D Touch Surface Interface?

Discover how to cost-efficiently integrate a touch interface into the microcontroller of your choice using our 2D Touch Surface Library.

Why Choose a maXTouch Touchscreen Controller for Your Design?

Exceptional Touch Performance

maXTouch technology combines the best of mutual- and self-capacitance sensing methods to ensure optimal performance in your design. Key benefits and features include:

  • Moisture Tolerance
    • No false touch in the presence of water
    • Reliable finger tracking through water droplets
  • Accuracy and Speed
    • Tracking of up to 16 concurrent touches
    • Up to 250 Hz reporting rate with active noise filtering
    • Below 1 mm linearity and accuracy
    • Best edge performance
  • Variety of Touch Sensor Technologies
    • Discrete solutions: One Glass Solution (OGS) or Glass/Film/Film (GFF)
    • Display integrated solutions: On-cell stack-up
    • Standard and proprietary sensors patterns with Indium Tin Oxide (ITO) or other materials
  • Support for Industrial Designs
    • Thick front panels made of glass or plastic
    • Non-rectangular shapes
  • Glove Support
    • Multi-gloved finger tracking
    • Glove thickness up to 5 mm
  • Embedded Touch Gestures
    • Single-finger gesture such as tap, double-tap or flick
    • Dual-finger gesture such as pinch and rotate

Outstanding Noise Immunity

maXTouch technology has superior Signal-to-Noise Ratio (SNR), which enables you to successfully combat various sources of electromagnetic interference such as:

  • Injected current noise
  • Display radiated noise
  • Backlight and motor radiated noise
  • Fast transient current

maXTouch touchscreen controllers are built on a highly parallel sensing architecture and carry multiple hard-wired analog and digital filters. When combined with a high-performance and low-power CPU core, maXTouch touchscreen controllers maintain a fast reporting rate and excellent touch performance even in the presence of sources of severe electromagnetic noise. All maXTouch touchscreen controllers are designed to meet high Electrostatic Discharge (ESD) requirements, and they have an unmatched track record when used in touch panels that have successfully passed industry-related EMC standards in the automotive, home appliances, medical and industrial markets.

maXTouch Touchscreen Controllers


View All Parametrics
Product Status Interface Type Typical Screen Size Nodes Packages
ATMXT1067TD-A In Production I2C and SPI 10.5 1066 128/TQFP
ATMXT1189TD-A In Production I2C and SPI 13 1188 144/LQFP
ATMXT144UD-A In Production I2C and SPI 4.3 144 Please call for package information
ATMXT1665TD-A In Production I2C and SPI 15 1664 144/LQFP
ATMXT2113TD-A In Production I2C and SPI 15 2112 144/LQFP
ATMXT288UD-A In Production I2C and SPI 6.5 288 Please call for package information
ATMXT2912TD-A In Production I2C and SPI 20 2911 176/LQFP
ATMXT449TD-A In Production I2C and SPI 8 448 100/TQFP
ATMXT641TD-A In Production I2C and SPI 9 640 100/TQFP
View All Parametrics
Product Status Interface Type Typical Screen Size Nodes Packages
ATMXT1066TD In Production I2C 12.4 1066 114/UFBGA, 117/UFBGA
ATMXT144U In Production I2C 3.3 144 38/XQFN
ATMXT1664T3 In Production I2C and USB 15.6 1664 136/UFBGA, 162/UFBGA
ATMXT2952TD In Production I2C and USB 21 2911 162/UFBGA
ATMXT336U In Production I2C 5.5 336 56/XQFN
ATMXT640U In Production I2C 9.6 640 88/UFBGA, 88/X1FBGA
View All Parametrics
Product Status Interface Type Typical Screen Size Nodes Touch Response
ATMXT112UD In Production I2C 4.5 112 > 100 Hz
ATMXT228UD In Production I2C 5.8 228 > 100 Hz
ATMXT336UD In Production I2C 7.1 336 > 100 Hz
View All Parametrics
Product Status 5K Pricing Interface Type Typical Screen Size Operating Voltage Range (Vcc) Automotive Qualified Temperature Range (deg C) Nodes Packages
ATMXT1066T2 In Production Call for pricing I2C 12.4 1.8 to 3.47 No -40 to 85 1066 114/UFBGA, 117/UFBGA
ATMXT112E In Production Call for pricing I2C 3.5 2.7 to 3.3 No -40 to 85 112 40/UQFN
ATMXT112S Not Recommended for new designs Call for pricing I2C 3.5 1.8 to 3.3 No -40 to 85 112 Please call for package information
ATMXT1188S In Production Call for pricing I2C 10.1 1.8 to 3.47 No -40 to 85 1188 128/VFBGA
ATMXT1188S-A In Production Call for pricing I2C 10.1 3.14 to 3.47 Yes -40 to 85 1188 144/LQFP
ATMXT1189T-A In Production Call for pricing I2C and SPI 13 3.14 to 3.47 Yes -40 to 105 1188 144/LQFP
ATMXT1386 In Production Call for pricing I2C 15.6 2.7 to 3.3 No -40 to 85 1386 64/VQFN
ATMXT1386E In Production Call for pricing I2C 15.6 3.14 to 3.47 Yes -40 to 85 1386 64/VQFN
ATMXT143E Not Recommended for new designs Call for pricing I2C 5 2.7 to 3.3 Yes -40 to 85 143 40/UQFN
ATMXT1664S In Production Call for pricing I2C 12 1.8 to 3.47 No -40 to 85 1664 128/VFBGA, 144/LQFP
ATMXT1664S-A In Production Call for pricing I2C 14 3.14 to 3.47 Yes -40 to 85 1664 144/LQFP
ATMXT1664T2 In Production Call for pricing I2C / USB 12.3 1.8 to 3.3 No -40 to 85 1664 162/UFBGA
ATMXT1665T-A In Production Call for pricing I2C and SPI 15 3.14 to 3.47 Yes -40 to 105 1664 144/LQFP
ATMXT1666T2 In Production Call for pricing I2C / USB 12.3 1.8 to 3.3 No -40 to 85 1664 162/UFBGA
ATMXT224 In Production Call for pricing I2C 7 1.8 to 3.3 No -40 to 85 224 48/UQFN, 49/UFBGA, 49/VFBGA
ATMXT224E In Production Call for pricing I2C 7 1.8 to 3.3 No -40 to 85 224 48/UQFN, 49/UFBGA
ATMXT224E-A In Production Call for pricing I2C 5 2.57 to 3.47 Yes -40 to 85 224 48/TQFP
ATMXT224S In Production Call for pricing I2C 4.3 1.71 to 3.47 No -40 to 85 224 56/UQFN, 64/UFBGA
ATMXT224S-A In Production Call for pricing I2C 4.3 2.57 to 3.47 Yes -40 to 85 224 64/TQFP
ATMXT224T In Production Call for pricing I2C 4.5 1.8 to 3.3 No -40 to 85 224 56/UQFN, 64/UFBGA, 72/UFBGA
ATMXT225T-A In Production Call for pricing I2C and SPI 5 3.14 to 3.47 Yes -40 to 105 224 100/TQFP
ATMXT2952T2 In Production Call for pricing I2C and USB 21 1.8 to 3.47 No -40 to 85 2911 162/UFBGA
ATMXT2954T2 In Production Call for pricing I2C / USB 15.6 1.8 to 3.3 No -40 to 85 2911 162/UFBGA
ATMXT336S In Production Call for pricing I2C 5 1.71 to 3.47 No -40 to 85 336 56/UQFN, 64/UFBGA
ATMXT336S-A In Production Call for pricing I2C 7 2.57 to 3.47 Yes -40 to 85 336 64/TQFP
ATMXT336T In Production Call for pricing I2C 5.5 1.8 to 3.3 No -40 to 85 336 56/UQFN, 64/UFBGA, 72/UFBGA
ATMXT337T In Production Call for pricing I2C 5.5 1.8 to 3.3 No -40 to 85 336 56/UQFN, 64/UFBGA
ATMXT3432S In Production Call for pricing I2C / USB 17.3 2.57 to 3.47 No -40 to 85 3432 64/UFBGA, 64/VQFN, 128/VFBGA
ATMXT3432S-A In Production Call for pricing I2C / USB 17.3 2.57 to 3.47 Yes -40 to 85 3432 100/TQFP, 144/LQFP
ATMXT449T-A In Production Call for pricing I2C and SPI 8 3.14 to 3.47 Yes -40 to 105 448 100/TQFP
ATMXT540E In Production Call for pricing I2C 8 2.57 to 3.3 Yes -40 to 105 540 80/UFBGA
ATMXT540S Not Recommended for new designs Call for pricing I2C 7 1.8 to 3.3 No -40 to 85 540 Please call for package information
ATMXT640T In Production Call for pricing I2C 8 1.8 to 3.3 No -40 to 85 640 84/UFBGA, 84/XFLGA
ATMXT641T In Production Call for pricing I2C 6.2 1.71 to 3.47 No -40 to 85 640 84/UFBGA
ATMXT641T-A In Production Call for pricing I2C and SPI 9 3.14 to 3.47 Yes -40 to 105 640 100/TQFP
ATMXT768E Not Recommended for new designs Call for pricing I2C 10.1 2.57 to 3.3 Yes -40 to 105 768 96/VFBGA
ATMXT799T-A In Production Call for pricing I2C and SPI 11 3.14 to 3.47 Yes -40 to 105 798 144/LQFP
ATMXT874U Not Recommended for new designs Call for pricing I2C 8.8 1.8 to 3.3 No -40 to 85 874 115/UFBGA
ATMXTS220 Not Recommended for new designs Call for pricing I2C 0 1.8 to 3.3 No 0 to 85 0 28/VQFN

Documentation


maXTouch Touchscreen Controllers


Title Download
MXTAN0213 - Interfacing with maXTouch Touchscreen Controllers Download
AN2488 - maXTouch 12C/USB Bridge Boards Download
AN3084 - Using the maXTouch® Linux® Driver Download

maXTouch Touchscreen Controllers


Title Download
Touch and 3D Gesture Control Brochure Download

maXTouch Touchscreen Controllers


Title Download
maXTouch_Linux_Driver_LabManual_Training Download
Basic Training - Using maXTouch Studio Lite with an Eval Kit Download

Microchip's Touchscreen Design Partners

This video describes some of the challenges associated with touchscreen controller design, and introduces our maXTouch® touch sensor module partners as a tool to reduce complexity and lower risk.