Microchip AT42QT1040-MMHR

Manufacturer No:

AT42QT1040-MMHR

Manufacturer:

Microchip

Package:

20-VFQFN Exposed Pad

Description:

AT42QT1040

Quantity:

Delivery:

Payment:

In Stock :Available

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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

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

User Guide

PURCHASE

Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.

MEANS OF PAYMENT

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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.