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AT42QT1011-MAH - Microchip

Description: AT42QT1011-MAH, Spread-Spectrum Charge-Transfer Touch Screen Controller, 14 bit, 8-Pin UDFN

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AT42QT1011-MAH - Microchip - PCB symbol
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PCB Footprints
AT42QT1011-MAH - Microchip PCB footprint - Small Outline No-lead - Small Outline No-lead - 8-pin UDFN/USON_2022
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AT42QT1011-MAH - Microchip - 3D model - Small Outline No-lead - 8-pin UDFN/USON_2022
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AT42QT1011-MAH Details

  • Manufacturer Part Number:

    AT42QT1011-MAH

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    UDFN-8

  • Country Of Origin:

    Thailand

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2016-12-19

  • Manufacturer:

    Microchip Technology Inc

  • Additional Feature:

    SEATED HGT MAX

  • Body Breadth:

    1.95 mm

  • Body Height:

    0.6 mm

  • Body Length or Diameter:

    2 mm

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    DIGITAL

  • Output Range:

    0.50-2.30V

  • Output Type:

    DIGITAL VOLTAGE

  • Package Body Material:

    UNSPECIFIED

  • Package Shape/Style:

    RECTANGULAR

  • Screening Level:

    TS 16949

  • Sensors/Transducers Type:

    CAPACITIVE TOUCH SENSOR

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    1.8 V

  • Surface Mount:

    YES

AT42QT1011-MAH Frequently Asked Questions (FAQs)

  • The recommended PCB layout for the AT42QT1011-MAH involves placing the sensor as close to the touch surface as possible, with a solid ground plane underneath to reduce noise. The sensor's pins should be connected to the microcontroller using short, low-impedance traces.
  • Calibration involves adjusting the sensor's sensitivity and threshold settings to suit the specific application. This can be done by adjusting the values of the internal registers, such as the sensitivity and threshold registers, through the I2C interface.
  • The maximum operating frequency of the AT42QT1011-MAH is 400 kHz, which is the maximum I2C clock frequency supported by the device.
  • To handle noise and interference, use a solid ground plane, keep the sensor and microcontroller close together, and use shielding or filtering to reduce electromagnetic interference (EMI). Additionally, implement noise-reducing techniques such as averaging or filtering in the firmware.
  • Yes, the AT42QT1011-MAH is designed to work with capacitive touch panels. It can detect changes in capacitance caused by a user's touch and provide accurate touch detection.

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AT42QT1011-MAH 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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