Manufacturer Part Number
AT42QT2120-MMHR
Manufacturer
Microchip Technology
Introduction
The AT42QT2120-MMHR is a touch sensor IC with capacitive touch and proximity sensing capabilities.
Product Features and Performance
Capacitive touch sensing with up to 12 inputs
Proximity detection feature
Supports buttons, slider, and wheel type inputs
Up to 10 LED driver channels for direct user feedback
I2C interface for communication with microcontrollers
Designed for operation with a wide range of supply voltages from 1.8V to 5.5V
Usable in wide temperature ranges from -40°C to 85°C
Product Advantages
Robust touch detection with QTouch™ technology
Ability to drive LEDs enables direct visual feedback for touch events
Versatile input configuration supporting various interface types
Low power consumption suitable for battery-powered applications
Compact 20-VFQFN package saves space on the PCB
Key Technical Parameters
Supply voltage range: 1.8V ~ 5.5V
Operating temperature range: -40°C ~ 85°C
Number of Inputs: Up to 12
LED Driver Channels: Up to 10
Communication Interface: I2C
Mounting Type: Surface Mount
Package: 20-VFQFN Exposed Pad
Quality and Safety Features
Robust sensor design ensuring stable operation in various environments
Compatibility
Compatible with various microcontrollers through I2C interface
Suitable for use in PCBs that support surface mount technology
Application Areas
Consumer electronics
Home automation
Automotive interfaces
Industrial controls
Product Lifecycle
Status: Active
Product is not nearing discontinuation, and replacements or upgrades are available
Several Key Reasons to Choose This Product
QTouch™ technology provides reliable touch sensing performance
High level of integration saves space and reduces external component count
Easy to implement in designs with flexible communication via I2C
Extensive application support across multiple industries
Active product lifecycle status ensures long-term availability and support