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AT42QT2120-XUR - Microchip

Description: Capacitive Touch Buttons, Slider, Wheel 20-TSSOP

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AT42QT2120-XUR - Microchip - PCB symbol
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PCB Footprints
AT42QT2120-XUR - Microchip PCB footprint - Small Outline Packages - Small Outline Packages - TSSOP 20
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3D Models
AT42QT2120-XUR - Microchip - 3D model - Small Outline Packages - TSSOP 20
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AT42QT2120-XUR Details

  • Manufacturer Part Number:

    AT42QT2120-XUR

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    TSSOP-20

  • Country Of Origin:

    Taiwan, Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.31.00.01

  • Factory Lead Time:

    7 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    13

  • Additional Feature:

    SEATED HGT CALCULATED

  • Body Breadth:

    4.4 mm

  • Body Height:

    1.05 mm

  • Body Length or Diameter:

    6.5 mm

  • JESD-609 Code:

    e3

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    DIGITAL

  • Output Range:

    0.60-2.60V

  • Output Type:

    DIGITAL VOLTAGE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Equivalence Code:

    TSSOP20,.25

  • Package Shape/Style:

    RECTANGULAR

  • Sensors/Transducers Type:

    CAPACITIVE TOUCH SENSOR

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    1.8 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn)

AT42QT2120-XUR Frequently Asked Questions (FAQs)

  • A good PCB layout for the AT42QT2120-XUR 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 untouched) and adjusting the sensor's internal registers accordingly.
  • The maximum operating frequency of the AT42QT2120-XUR is 400 kHz, but it can be adjusted to lower frequencies to reduce power consumption or improve noise immunity.
  • Gesture recognition can be implemented by analyzing the sensor's output over time and looking for specific patterns. This can be done using a microcontroller or a dedicated gesture recognition IC.
  • The power consumption of the AT42QT2120-XUR depends on the operating frequency and the mode of operation. In low-power mode, the current consumption is typically around 10 μA, while in high-speed mode it can be up to 1.5 mA.

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AT42QT2120-XUR Overview

Use the download button to access the AT42QT2120-XUR 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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