Images are for reference only See Product Specifications
Orders Over
$5000Microchip AT42QT1040-MMHR
Capacitive Touch Screen 4 Key 20-Pin VQFN EP T/R
Brands: Microchip Technology, Inc
Mfr.Part #: AT42QT1040-MMHR
Datasheet: AT42QT1040-MMHR Datasheet (PDF)
Package/Case: VQFN-20
Product Type: Sensor, Capacitive Touch
RoHS Status:
Stock Condition: 2,292 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
0
1
AT42QT1040-MMHR General Description
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.
Features
- 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
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Tags | AT42QT104, AT42QT10, AT42QT1, AT42Q, AT42, AT4 | Series | QTouch™ |
| Product Status | Active | Programmabe | Not Verified |
| Type | Buttons | Proximity Detection | No |
| Number of Inputs | Up to 4 | LED Driver Channels | 4 |
| Voltage - Supply | 1.8V ~ 5.5V | Current - Supply | 10mA |
| Operating Temperature | -40°C ~ 85°C | Mounting Type | Surface Mount |
| Package / Case | 20-VFQFN Exposed Pad | Supplier Device Package | 20-VQFN (3x3) |
| Base Product Number | AT42QT1040 |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
 |
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
 |
Paypal | charge 4.0% service fee. |
 |
Credit Card | charge 3.5% service fee. |
 |
Western Union | charge US.00 banking fee. |
 |
Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
-
![Product]( "Product")
Step1 :Product
-
![Vacuum packaging]( "Vacuum packaging")
Step2 :Vacuum packaging
-
![Anti-static bag]( "Anti-static bag")
Step3 :Anti-static bag
-
![Individual packaging]( "Individual packaging")
Step4 :Individual packaging
-
![Packaging boxes]( "Packaging boxes")
Step5 :Packaging boxes
-
![bar-code shipping tag]( "bar-code shipping tag")
Step6 :bar-code shipping tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
-
The AT42QT1040-MMHR chip is a touch sensor controller designed for capacitive touch buttons and sliders. It integrates signal processing and hardware keys, eliminating the need for external components. The chip detects changes in capacitance and converts them into digital signals, allowing for easy implementation of touch controls in various applications such as consumer electronics, automotive, and industrial.
-
Equivalent
Some equivalent products to the AT42QT1040-MMHR chip include the AT42QT1040-TSHR and AT42QT1040-TU-ND. These chips are all touch sensors and have similar specifications and functionality. -
Features
The AT42QT1040-MMHR is a touch sensor controller with four capacitive touch channels. It offers a touch detection algorithm, noise filtering, and automatic calibration for optimal performance. It operates over a wide voltage range and is designed for low power consumption. It also offers an integrated LED driver and can be used in a variety of applications requiring touch sensing capabilities. -
Pinout
AT42QT1040-MMHR is a capacitive touch sensor IC with 40 touch channels. It features a 44-pin QFN package and is used for touch sensing applications. -
Manufacturer
Microchip Technology is the manufacturer of the AT42QT1040-MMHR. It is an American company that specializes in designing and manufacturing various semiconductor products. -
Application Field
The AT42QT1040-MMHR is a touch proximity sensor designed for applications such as consumer electronics, household appliances, automotive systems, and industrial controls. It can be used for touch-sensitive buttons, sliders, and proximity detection in a wide range of devices. -
Package
The AT42QT1040-MMHR chip is available in a 20-pin QFN (quad flat no-lead) package type with a compact size.
Datasheet PDF
We provide high quality products, thoughtful service and after sale guarantee
-
![Product]( "Product")
We have rich products, can meet your various needs.
-
![quantity]( "quantity")
Minimum order quantity starts from 1pcs.
-
![shipping]( "shipping")
Lowest international shipping fee starts from $0.00
-
![guarantee]( "guarantee")
365 days quality guarantee for all products
Highly satisfied with the electronic components I purchased from Ovaga - great products at an affordable price.