MPR121QR2 - NXP USA Inc.

Manufacturer Part Number

MPR121QR2

Manufacturer

NXP Semiconductors

Introduction

Capacitive touch sensor controller with proximity detection

Product Features and Performance

Capacitive touch sensor controller

Supports up to 12 electrode inputs

Proximity detection capability

Can drive up to 8 LED channels

I2C interface for communication

Compatible with 2V to 3.6V supply voltages

Operational in temperatures ranging from -40°C to 85°C

Surface mount technology for PCB integration

20-UFQFN package for compact design

Based on MPR12 product family

Product Advantages

Enables advanced user interface options

Proximity detection adds versatility

Integrated LED driver reduces additional component requirements

Low power consumption at 393µA supply current

Robust operation in extreme temperatures

I2C interface simplifies connectivity and data exchange

Small footprint for space-constrained applications

Key Technical Parameters

Number of Inputs: Up to 12

LED Driver Channels: Up to 8

Proximity Detection: Yes

Interface: I2C

Voltage - Supply: 2V ~ 3.6V

Current - Supply: 393µA

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Package / Case: 20-UFQFN

Supplier Device Package: 20-QFN (3x3)

Quality and Safety Features

Built to NXP Semiconductors quality standards

Operates reliably within stated temperature range

Compatibility

Compatible with devices and systems supporting I2C interface

Application Areas

Consumer electronics

Mobile devices

Automotive controls

Industrial interfaces

Product Lifecycle

Discontinued at Digi-Key

Replacement or upgrade options may be limited

End of life in the product lifecycle

Several Key Reasons to Choose This Product

Offers a flexible input configuration for various interface designs

Incorporates proximity sensing for additional functionality

Highly integrated solution reduces system complexity

Energy-efficient operation for battery-powered devices

High-temperature resilience for use in harsh environments

Compact and surface mountable for modern electronics design

Supported by NXP's reputation for quality and reliability