AT42QT1012-TSHR
Single-channel capacitive touch sensor IC in compact SOT-23 package
Manufacturer： ['microchip', 'atmel']
series introduction
# Introduction to the AT42QT1012 - TSHR Product Series
## 1. Overview
The AT42QT1012 - TSHR is a cutting - edge product series developed by Atmel (now part of Microchip Technology), designed to provide high - performance touch sensing solutions. This series is specifically engineered to meet the diverse needs of modern electronic devices, offering reliable and accurate touch detection capabilities in a variety of applications.
## 2. Key Features
### 2.1 Touch Sensing Technology
- **Capacitive Sensing**: The AT42QT1012 - TSHR utilizes advanced capacitive touch sensing technology. Capacitive sensing works by detecting changes in capacitance when a conductive object, such as a finger, approaches or touches the sensing electrode. This technology offers several advantages over traditional mechanical switches, including a longer lifespan, better resistance to environmental factors, and a more sleek and modern user interface.
- **Multi - Touch Support**: It is capable of supporting multi - touch functionality, allowing users to perform complex gestures such as pinch - to - zoom, swipe, and multi - finger taps. This enhances the user experience and enables more intuitive interaction with the device.
### 2.2 High Sensitivity and Accuracy
- **Adjustable Sensitivity**: The series provides adjustable sensitivity settings, which can be fine - tuned according to the specific requirements of the application. This ensures reliable touch detection even in challenging environments, such as when the device is exposed to moisture, dust, or electromagnetic interference.
- **Accurate Position Detection**: With high - precision sensing algorithms, the AT42QT1012 - TSHR can accurately detect the position of the touch, enabling precise control and interaction.
### 2.3 Low Power Consumption
- **Power - Saving Modes**: The product series incorporates power - saving modes to minimize energy consumption. In idle states, the device can enter a low - power mode, reducing power consumption significantly while still maintaining the ability to quickly wake up and respond to touch events. This makes it ideal for battery - powered devices, such as mobile phones, tablets, and wearable devices.
### 2.4 Integrated Protection Features
- **ESD Protection**: It is equipped with built - in electrostatic discharge (ESD) protection, which safeguards the device from damage caused by static electricity. This is crucial in ensuring the long - term reliability and durability of the product, especially in applications where the device may be frequently touched by users.
- **Noise Immunity**: The AT42QT1012 - TSHR has excellent noise immunity, which helps to filter out unwanted electrical noise and interference. This ensures stable and reliable touch sensing performance, even in noisy electrical environments.
## 3. Technical Specifications
### 3.1 Pin Configuration
The AT42QT1012 - TSHR comes with a well - defined pin configuration that includes pins for power supply, ground, touch sensing electrodes, and communication interfaces. The pin layout is designed to be easy to integrate into various circuit boards, allowing for seamless integration into different electronic devices.
### 3.2 Communication Interfaces
- **I2C Interface**: It supports the I2C (Inter - Integrated Circuit) communication protocol, which is a widely used serial communication interface in the electronics industry. The I2C interface allows for easy communication between the AT42QT1012 - TSHR and other microcontrollers or devices, enabling the transfer of touch data and configuration information.
### 3.3 Operating Voltage and Temperature Range
- **Operating Voltage**: The device operates within a wide voltage range, typically from 2.7V to 5.5V. This flexibility allows it to be used in a variety of power supply configurations, making it suitable for different types of electronic devices.
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Images for reference
SOT-23-6
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