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AT42QT2100-MUR - Microchip

Description: Capacitive Touch Sensors 7 Channel QTouch Touch Sensor IC

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AT42QT2100-MUR - Microchip - PCB symbol
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PCB Footprints
AT42QT2100-MUR - Microchip PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - AT42QT2100-MUR
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AT42QT2100-MUR - Microchip - 3D model - Quad Flat No-Lead - AT42QT2100-MUR
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AT42QT2100-MUR Details

  • Manufacturer Part Number:

    AT42QT2100-MUR

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    MLF-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:

    13

  • 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:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    OPEN-DRAIN

  • Output Range:

    0.5-4.50V

  • Output Type:

    VOLTAGE OUTPUT

  • Package Body Material:

    UNSPECIFIED

  • Package Equivalence Code:

    LCC32,.2SQ,20

  • Package Shape/Style:

    SQUARE

  • Sensors/Transducers Type:

    CAPACITIVE TOUCH SENSOR

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn)

AT42QT2100-MUR Frequently Asked Questions (FAQs)

  • A good PCB layout for the AT42QT2100-MUR 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.
  • Calibration involves adjusting the sensor's sensitivity and offset to match the specific application. This can be done by taking multiple readings with the sensor in different states (e.g. touched and not touched) and adjusting the sensitivity and offset registers accordingly.
  • The maximum operating frequency of the AT42QT2100-MUR is 400 kHz, but it can be operated at lower frequencies to reduce power consumption and noise.
  • Noise and interference can be handled by using a low-pass filter, shielding the sensor and microcontroller, and using a ground plane on the PCB. Additionally, the AT42QT2100-MUR has built-in noise filtering and debouncing features that can be enabled.
  • Yes, the AT42QT2100-MUR can be used in a mutual capacitance configuration, which allows for more complex touch sensing applications such as gesture recognition and multi-touch detection.

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AT42QT2100-MUR Overview

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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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