AT42QT2120-MMHR - Microchip Technology

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