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AT42QT1481-ANR - Microchip

Description: Capacitive Touch Sensors 44TQFP, 10x101mm, T/R

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AT42QT1481-ANR - Microchip - PCB symbol
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PCB Footprints
AT42QT1481-ANR - Microchip PCB footprint - Quad Flat Packages - Quad Flat Packages - 44A
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3D Models
AT42QT1481-ANR - Microchip - 3D model - Quad Flat Packages - 44A
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AT42QT1481-ANR Details

  • Manufacturer Part Number:

    AT42QT1481-ANR

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TQFP-44

  • Pin Count:

    44

  • Manufacturer Package Code:

    TQFP-44

  • Country Of Origin:

    Taiwan, Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.31.00.01

  • Factory Lead Time:

    9 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    20

  • Body Breadth:

    10 mm

  • Body Height:

    1 mm

  • Body Length or Diameter:

    10 mm

  • JESD-609 Code:

    e3

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    44

  • Operating Temperature-Max:

    105 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    DIGITAL

  • Output Range:

    0.60-4.20V

  • Output Type:

    DIGITAL VOLTAGE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape/Style:

    SQUARE

  • Sensors/Transducers Type:

    CAPACITIVE TOUCH SENSOR

  • Supply Voltage-Max:

    5.25 V

  • Supply Voltage-Min:

    4.75 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn)

AT42QT1481-ANR Frequently Asked Questions (FAQs)

  • Microchip provides a recommended PCB layout in the AT42QT1481-ANR datasheet, which includes guidelines for trace routing, component placement, and grounding. It's essential to follow this layout to ensure optimal performance and minimize noise.
  • The AT42QT1481-ANR does not require calibration. It is a self-calibrating device that automatically adjusts its sensitivity and threshold levels during power-up. However, it's essential to follow the recommended PCB layout and ensure proper grounding to minimize noise and ensure accurate touch detection.
  • The AT42QT1481-ANR can support up to 48 touch keys. However, the actual number of touch keys that can be connected depends on the specific application requirements, such as the size and shape of the touch keys, and the desired level of sensitivity.
  • Yes, the AT42QT1481-ANR is designed to operate in noisy environments. It features advanced noise filtering and suppression techniques, including automatic noise threshold adjustment and hysteresis. However, it's still essential to follow proper PCB layout and design guidelines to minimize noise and ensure reliable touch detection.
  • The power consumption of the AT42QT1481-ANR depends on the operating mode and the frequency of the touch sensing. In typical operating conditions, the device consumes around 10-15 mA. However, this can vary depending on the specific application requirements and the desired level of sensitivity.

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AT42QT1481-ANR 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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