Microchip AT42QT1040-MMHR

Manufacturer No:

AT42QT1040-MMHR

Manufacturer:

Microchip

Package:

20-VFQFN Exposed Pad

Description:

AT42QT1040

Quantity:

In Stock :Available

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Shipping & Availability

Fast worldwide shipping via DHL, FedEx, UPS, and EMS.

Shipped from：HK Warehouse

Expected Shipping：Sun, Apr 26 - Mon, Apr 27, 2026

Lead Time：Inquire about availability

Date Code：Within 2 Years

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User Guide

Aichiplink operates certified in-house inspection and testing facilities to ensure all electronic components meet internationally recognized quality and compliance standards. Our quality management system is verified through ISO 9001 certification and industry-standard inspection procedures.

PURCHASE

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RFQ (REQUEST FOR QUOTATIONS)

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Provide target prices and acceptable alternatives, if any, to speed up the quotation process.

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1：Prepare product

Step2：Desiccant Protection

Step3：Vacuum Packaging

Step4：Individual Package

Step5：Anti-collision Filling

Step6：Packaging Box

SHIPPING COST

1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.

AT42QT1040-MMHR Information

Microchip AT42QT1040-MMHR technical specifications, attributes, parameters and parts with similar specifications to Microchip AT42QT1040-MMHR.

Type
Parameter

Product Type
Proximity/Keys/Slider

Input Channels
4

Number of Keys Max
4

Slider
No

Proximity detection
No

Output Channels
0

Measurement Principle
E-Field

Report Rate (pps)
0

Number of Touches
0

Power Modes
0

Type
Parameter

Interface
Digital Output

I/O, LED Drivers
0

Other Features
Signal Guard/Driven Shield

Temp Range
0°C to 70°C

Voltage Min. (V)
1.80

Voltage Max. (V)
5.50

Download datasheets and manufacturer documentation for Microchip AT42QT1040-MMHR.

Digital burst mode, charge-transfer capacitive sensor driver designed for touch-key applications. It can sense from one to four keys-one to three keys can be disabled by not installing their respective sense capacitors. The device includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions. The outputs are fully debounced. Only a few external parts are required for operation. The device modulates its bursts in a spread-spectrum fashion in order to heavily suppress the effects of external noise and to suppress RF emissions.

Four discrete outputs indicating individual key touch
Technology: Patented spread-spectrum charge-transfer (direct mode)
Electrode Design: Simple self-capacitance style
Electrode Materials: Etched copper, silver, carbon, Indium Tin Oxide (ITO)
Electrode Substrates: PCB, FPCB, plastic films, glass
Panel Materials: Plastic, glass, composites, painted surfaces (low particle density metallic paints possible)
Panel Thickness: Up to 10 mm glass, 5 mm plastic (electrode size dependent)
Key Sensitivity: Fixed key threshold, sensitivity adjusted via sample capacitor value
Patented Adjacent Key Suppression® (AKS®) technology to enable accurate key detection
Interface: Pin-per-key outputs, plus debug mode to observe sensor signals
Moisture Tolerance: Increased moisture tolerance based on hardware design and firmware tuning
Signal Processing: Self-calibration, auto drift compensation, noise filtering
Applications: Mobile, consumer, white goods, toys, kiosks, POS
Power: 1.8 V – 5.5 V
Package: 20-pin 3 x 3 mm VQFN RoHS compliant