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AT42QT1244-MU - Microchip

Description: Capacitive Touch Sensors QMatrix FMEA 24 Key Sensor IC

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Symbol
AT42QT1244-MU - Microchip - PCB symbol
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PCB Footprints
AT42QT1244-MU - Microchip PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 32 QFN
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3D Models
AT42QT1244-MU - Microchip - 3D model - Quad Flat No-Lead - 32 QFN
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AT42QT1244-MU Details

  • Manufacturer Part Number:

    AT42QT1244-MU

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-32

  • Pin Count:

    32

  • Manufacturer Package Code:

    VQFN-32

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.31.00.01

  • Factory Lead Time:

    8 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    14

  • Body Breadth:

    5 mm

  • Body Height:

    0.84 mm

  • Body Length or Diameter:

    5 mm

  • JESD-609 Code:

    e3

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    OPEN-DRAIN

  • Output Range:

    0.60-2.30V

  • Output Type:

    DIGITAL VOLTAGE

  • Package Body Material:

    UNSPECIFIED

  • Package Equivalence Code:

    LCC32,.2SQ,20

  • Package Shape/Style:

    SQUARE

  • Sensors/Transducers Type:

    CAPACITIVE TOUCH SENSOR

  • Supply Voltage-Max:

    5 V

  • Supply Voltage-Min:

    3 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn)

AT42QT1244-MU Frequently Asked Questions (FAQs)

  • A good PCB layout for the AT42QT1244-MU involves keeping the sensor and the microcontroller close together, using a ground plane to reduce noise, and minimizing the length of the traces between the sensor and the microcontroller. A 4-layer PCB with a dedicated ground plane is recommended.
  • The AT42QT1244-MU does not require calibration. It is a self-calibrating capacitive touch controller that automatically adjusts to the environment and the sensor electrodes. However, it's recommended to follow the layout and design guidelines provided in the datasheet to ensure optimal performance.
  • The AT42QT1244-MU supports up to 12 touch points or channels. However, the actual number of touch points that can be supported depends on the sensor design, the microcontroller, and the application requirements.
  • Yes, the AT42QT1244-MU can operate with a 3.3V power supply. The device is specified to operate from 2.7V to 5.5V, making it compatible with 3.3V systems.
  • The AT42QT1244-MU provides raw touch data, and gesture recognition needs to be implemented in the microcontroller or the application software. Microchip provides example code and libraries to help implement gesture recognition, but the actual implementation depends on the specific requirements of the application.

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AT42QT1244-MU Overview

Use the download button to access the AT42QT1244-MU schematic symbol, PCB footprint, and 3D model.
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About Microchip

Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th

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