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Part Details for AT42QT1040-MMHR by Microchip Technology Inc
Results Overview of AT42QT1040-MMHR by Microchip Technology Inc
- Distributor Offerings: (16 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
AT42QT1040-MMHR Information
AT42QT1040-MMHR by Microchip Technology Inc is an Other Sensor/Transducer.
Other Sensors/Transducers are under the broader part category of Sensors/Transducers.
Sensors and transducers detect and measure physical quantities like temperature, pressure, and force, converting them into electrical signals for various applications. Read more about Sensors/Transducers on our Sensors/Transducers part category page.
Price & Stock for AT42QT1040-MMHR
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
41AH8379
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Newark | Capacitive Touch Sensor, Serial, Vqfn-28, No. Of Channels:4Channels, Output Interface:Serial, Supply Voltage Min:1.8V, Supply Voltage Max:5.5V, Sensor Case/Package:Vqfn, No. Of Pins:20Pins, Operating Temperature Min:-40°C Rohs Compliant: Yes |Microchip AT42QT1040-MMHR RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Cut Tape | 1507 |
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$1.2500 | Buy Now |
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DISTI #
23AC2688
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Newark | Integrated-Circuit 20 Vqfn 3X3X0.85Mm T/R Rohs Compliant: Yes |Microchip AT42QT1040-MMHR RoHS: Compliant Min Qty: 6000 Package Multiple: 1 Date Code: 0 Container: Reel | 0 |
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$1.4300 | Buy Now |
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DISTI #
150-AT42QT1040-MMHRCT-ND
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DigiKey | IC TOUCH SENSOR 4KEY 20-VQFN Min Qty: 1 Lead time: 4 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) | Temporarily Out of Stock |
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$1.3800 / $1.6500 | Buy Now |
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DISTI #
AT42QT1040-MMHR
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Avnet Americas | Capacitive Touch Sensor, Qtouch?, 4 Channels, Serial, 1.8 V, 5.5 V, VQFN - Tape and Reel (Alt: AT42QT1040-MMHR) RoHS: Not Compliant Min Qty: 6000 Package Multiple: 6000 Lead time: 4 Weeks, 0 Days Container: Reel | 12000 |
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$1.3806 / $1.4750 | Buy Now |
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DISTI #
556-AT42QT1040-MMHR
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Mouser Electronics | Capacitive Touch Sensors INTEGRATED-CIRCUIT RoHS: Compliant | 8461 |
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$1.3700 / $1.6500 | Buy Now |
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DISTI #
V72:2272_07452215
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Arrow Electronics | Capacitive Touch Screen 4 Key 20-Pin VQFN EP T/R RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 4 Weeks Date Code: 2333 Container: Cut Strips | Americas - 10899 |
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$1.5840 / $1.7990 | Buy Now |
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DISTI #
AT42QT1040-MMHR
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Microchip Technology Inc | INTEGRATED-CIRCUIT, VQFN, Projected EOL: 2039-11-01 COO: South Korea ECCN: EAR99 RoHS: Compliant Lead time: 6 Weeks, 0 Days Container: Reel | 76990 |
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$1.2100 / $1.6500 | Buy Now |
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Onlinecomponents.com | Capacitive Touch Sensor Controller - 4 Key 20-Pin VQFN - Tape&Reel RoHS: Compliant |
12455 In Stock 72000 Factory Stock |
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$1.3600 / $4.0500 | Buy Now |
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DISTI #
67001263
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Verical | Capacitive Touch Screen 4 Key 20-Pin VQFN EP T/R RoHS: Compliant Min Qty: 20 Package Multiple: 10 | Americas - 12450 |
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$4.4783 / $5.2666 | Buy Now |
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DISTI #
70353996
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Verical | Capacitive Touch Screen 4 Key 20-Pin VQFN EP T/R RoHS: Compliant Min Qty: 4 Package Multiple: 1 Date Code: 2333 | Americas - 10899 |
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$1.5840 / $1.7990 | Buy Now |
Part Details for AT42QT1040-MMHR
AT42QT1040-MMHR CAD Models
AT42QT1040-MMHR Part Data Attributes
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AT42QT1040-MMHR
Microchip Technology Inc
Buy Now
Datasheet
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Compare Parts:
AT42QT1040-MMHR
Microchip Technology Inc
Analog Circuit, 1 Func
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | MICROCHIP TECHNOLOGY INC | |
| Package Description | VQFN-20 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.31.00.01 | |
| Factory Lead Time | 111 Weeks | |
| Samacsys Manufacturer | Microchip | |
| Body Breadth | 3 mm | |
| Body Height | 0.78 mm | |
| Body Length or Diameter | 3 mm | |
| Mounting Feature | SURFACE MOUNT | |
| Number of Terminals | 20 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Output | OPEN-DRAIN | |
| Output Range | 0.7-4V | |
| Output Type | DIGITAL VOLTAGE | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Equivalence Code | LCC20,.12SQ,18 | |
| Package Shape/Style | SQUARE | |
| Sensors/Transducers Type | CAPACITIVE TOUCH SENSOR | |
| Supply Voltage-Max | 5.5 V | |
| Supply Voltage-Min | 1.8 V | |
| Surface Mount | YES |
AT42QT1040-MMHR Frequently Asked Questions (FAQ)
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The recommended PCB layout for the AT42QT1040-MMHR involves placing the sensor on a separate layer from the MCU and other noisy components, using a ground plane to shield the sensor, and keeping the sensor traces as short as possible.
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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.
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The maximum operating frequency of the AT42QT1040-MMHR is 400 kHz, but it can be operated at lower frequencies to reduce power consumption and noise.
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To handle noise and interference, use a low-pass filter to remove high-frequency noise, add shielding to the sensor and its traces, and use a common mode choke to reduce electromagnetic interference.
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Yes, the AT42QT1040-MMHR is designed to operate in wet or humid environments, but it's essential to ensure the sensor is properly sealed and protected from water and moisture to prevent damage.