AT42QT1481-AN More Semiconductors - ICs by Microchip Technology
| Status: | Active |
|---|---|
| Series: | AT42QT1481 |
| RoHS: | Compliant |
The Microchip's AT42QT1481 is a capacitive touch controller with configurable 48-QTouch buttons. The Microchip QMatrix sensing algorithm (mutual capacitance) enables the user to achieve more buttons than there are pins because of this matrix layout. This capability makes the device ideal for home appliance customers that require high button counts at low cost. The button sensors can be constructed in a variety of shapes and sizes. The device includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions and frequencies (Conducted Immunity certified to EN61000-4-6 Level 2B).
The AT42QT1481 is certified to meet the European Standards (EN) & International Electrotechnical Commission (IEC) 60730 class B home appliance certifications. IEC/EN 60730 (Ed. 4.0) / IEC/EN 60335 (Ed. 5.0) standards cover mechanical, electrical, electronic, EMC, and abnormal operation of appliances. These certifications assure safe operation within an appliance if a fault within the system is detected by shutting it down. Although the certifications are conducted at the system level, selecting the right microcontroller (MCU) increases the ease of passing the certification and helps in bringing a product faster-to-market. With this certification, manufacturers can now easily design household appliances that are IEC/EN-certified with Microchip capacitive touch controllers for button, slider and wheel capability. This device also includes Failure Mode Effects Analysis (FMEA) for self-testing purposes to enable users to get their products to market quicker and with more safety and security.
Features
| Certified according to IEC/EN 60730 (Ed. 4.0) / IEC/EN 60335 (Ed. 5.0) for Appliance safety class B to speed up product level certification process |
| 48 touch buttons |
| mutual touch sensing - QMatrix |
| flexible sensor design |
Specifications
| Product Type | Proximity/Keys/Slider |
|---|---|
| Input Channels | 0 |
| Max Number of keys | 48 |
| Slider | No |
| Proximity detection | No |
| Output Channels | 0 |
| Measurement Principle | E-Field |
| Report Rate (pps) | 0 |
| Number of Touches | 0 |
| Power Modes | 0 |
| Interface | SPI and UART |
| I/O, LED Drivers | 0 |
| Other Features | Signal Guard/Driven Shield |
| Temp Range | Array |
| Voltage Min. (V) | 4.80 |
| Voltage Max. (V) | 5.30 |
| Pins | Packaging | 44 | TQFP |
| Packing Media | Tray (160) |
Last 6 months Inventory & Pricing History
Resources
Data Sheets |
|---|
| AT42QT1481 - Complete Datasheet |
Brochures |
|---|
| Product Selection Guide |
User Guides |
|---|
| Ultra Low Power BLE 4.1 SoC - Hardware Design Guidelines - SAMB11 Hardware Design Guide. |
| Atmel AT08801: Single Key Configurator - User Guide |
| Multifunction Compact Keyboard User Guide |
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.2733 |
| Shipping Weight (kg) | 1.1875 |
| Lead Count | 44 |
| Package Type | TQFP |
| Package Width or Size | 10x10x1mm |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| QMatrix FMEA 48 Key Sensor IC | Microchip Technology |
| 44Tqfp, 10X101Mm, Tray 44 Tqfp 10X10X1Mm Tray Rohs Compliant: Yes |Microchip Technology AT42QT1481-AN | Newark Electronics |
| Touch Sensor 1 Key 48 Channel 4.75V to 5.25V 44-Pin TQFP Tray | Avnet America |
| IC: switch | TME |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a AT42QT1481-AN?
Additional datasheets, footprints and schematics for AT42QT1481-AN are listed on our Part Details page. You can also find images and similar parts to AT42QT1481-AN on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for AT42QT1481-AN on our Product Comparison page. Access via the 'View Pricing & Stock' button to view AT42QT1481-AN price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does AT42QT1481-AN fall under?
The AT42QT1481-AN is listed under Semiconductors - ICs > More Semiconductors - ICs.
Can I view similar or alternative parts?
You can view similar parts to AT42QT1481-AN when available in the More Semiconductors - ICs range under the specifications section at the bottom of the details page.
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Submit any questions directly to the customer support team of the distributor listing the product. For the AT42QT1481-AN you can contact the distributor directly for product support, shipping queries etc.
Is the AT42QT1481-AN RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for AT42QT1481-AN have stock available?
Authorised distributors including Microchip Technology, Newark Electronics, Avnet America and TME have stock available or on a lead time for AT42QT1481-AN.
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