AT42QT1481
| Key | Value |
|---|
| Pin Count: | 44 |
|---|
| Touch Sensor Type: | Buttons |
|---|
| # of Touch Channels: | 48 |
|---|
| Operating Voltage (Vcc): | 4.75 to 5.25 |
|---|
| Interface Type: | SPI and UART |
|---|
| Acquisition Method: | QMatrix |
|---|
The Atmel® AT42QT1481 is a capacitive touch controller with configurable 48-QTouch buttons. The Atmel 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 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 Atmel 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.
Ordering Code 订购信息| 订购码 | 封装 | 操作范围 | 载体类型 |
|---|
| AT42QT1481-AU | TQFP 44A 44 | | |
| AT42QT1481-AUR | TQFP 44A 44 | | |
DataSheet 数据手册
Application Note
- Atmel AT02259: QTouch原理图和布局清单(文件大小: 2.5MB, 27 页数, 修订版 C, 更新时间: 07/2014)
- Atmel AT02260: Driving AT42QT1085(文件大小: 364KB, 14 页数, 修订版 A, 更新时间: 03/2013)
Atmel AT02260: Driving AT42QT1085 - Atmel AT03075: Getting Started with SAM4L Using QTouch Composer(文件大小: 1.5MB, 23 页数, 修订版 A, 更新时间: 05/2013)
- Atmel AT11805: Capacitive Touch Long Slider Design with PTC(文件大小: 561KB, 14 页数, 修订版 B, 更新时间: 06/2015)
- Atmel AT12405: Low Power Sensor Design with PTC(文件大小: 1.1MB, 17 页数, 修订版 A, 更新时间: 04/2015)
- Atmel AT12699: Multifunction Compact Keyboard(文件大小: 1.1MB, 31 页数, 修订版 B, 更新时间: 11/2015)(Software size: 4.1MB, revision B, updated: 02/2016)
Application Note - Atmel AT12699: Multifunction Compact Keyboard - Atmel AT13323: QTouch Smart Scan with Lumped Mode(文件大小: 3.6MB, 21 页数, 修订版 A, 更新时间: 09/2015)
Atmel AT13323: QTouch Smart Scan with Lumped Mode - Atmel AT13764: QTouch Scroll Sensor for Wearables(文件大小: 1MB, 16 页数, 修订版 A, 更新时间: 01/2016)
Atmel AT13764: QTouch Scroll Sensor for Wearables - Atmel AT15291: Migrating QTouch Designs from SAM D MCUs to SAM C MCUs(文件大小: 1MB, 20 页数, 修订版 A, 更新时间: 01/2016)
- Atmel AVR3003: Driving AT42QT1110 and AT42QT1111(文件大小: 279KB, 12 页数, 修订版 A, 更新时间: 10/2012)
Atmel AVR3003: Driving AT42QT1110 and AT42QT1111 - Atmel AVR3009: Driving QTouch Device with I2C Interface(文件大小: 287KB, 11 页数, 修订版 A, 更新时间: 12/2012)
Atmel AVR3009: Driving QTouch Device with I2C Interface - QTAN0015: Power Supply Considerations(文件大小: 66534, 4 页数, 修订版 A, 更新时间: 10/2008)
- QTAN0017: Checking the Effects of Noise(文件大小: 278826, 4 页数, 修订版 A, 更新时间: 10/2008)
- QTAN0030: Implementing a Long Slide Control(文件大小: 737295, 8 页数, 修订版 A, 更新时间: 06/2008)
- QTAN0040: Driving the AT42QT2160 QMatrix™ Sensor IC(文件大小: 148184, 14 页数, 修订版 A, 更新时间: 07/2008)
- QTAN0062: QTouch and QMatrix Sensitivity Tuning for Keys, Sliders and Wheels(文件大小: 426486, 18 页数, 修订版 A, 更新时间: 08/2010)
- QTAN0079 按键、滑动条和翻转 传感器设计指南(文件大小: 1058709, 72 页数, 修订版 A, 更新时间: 11/2011)
- QTAN0085: Haptics Design Guide(文件大小: 174KB, 10 页数, 修订版 B, 更新时间: 02/2013)
Brochures and Flyers
Qualification
User Guide
