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MPR121QR2

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MPR121QR2

IC CTLR TOUCH SENSOR 20-QFN

Manufacturer: NXP USA Inc.

Categories: Sensor, Capacitive Touch

Quality Control: Learn More

NXP USA Inc. MPR121QR2 is a capacitive touch controller IC designed for advanced human-machine interface applications. This component offers up to 12 independently configurable touch input channels, supporting buttons, sliders, and wheel functionalities. Featuring an I2C interface for seamless integration with microcontrollers, the MPR121QR2 operates across a voltage range of 2V to 3.6V with a low supply current of 393µA. Its proximity detection capability further enhances interactive design possibilities. The device is supplied in a compact 20-QFN (3x3) package, suitable for surface mounting, and is provided on tape and reel for high-volume manufacturing. This controller is commonly utilized in consumer electronics, automotive interfaces, and industrial control systems where intuitive touch sensing is critical.

Additional Information

Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: DiscontinuedPackaging: Tape & Reel (TR)Datasheet:
Technical Details:
PackagingTape & Reel (TR)
Package / Case20-UFQFN
Mounting TypeSurface Mount
InterfaceI2C
TypeButtons, Slider, Wheel
Operating Temperature-40°C ~ 85°C
Voltage - Supply2V ~ 3.6V
Current - Supply393µA
Number of InputsUp to 12
Resolution-
Supplier Device Package20-QFN (3x3)
Proximity DetectionYes
LED Driver ChannelsUp to 8
ProgrammableNot Verified

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NXP FAQs

NXP Semiconductors manufactures mixed-signal, analog, and embedded semiconductor components focused on secure connectivity and intelligent systems.

NXP’s core components include:

  • Microcontrollers (MCUs) and microprocessors (MPUs)
  • Automotive semiconductors (ADAS, radar, in-vehicle networking)
  • RF and wireless communication chips (including NFC and UWB)
  • Secure identification and authentication ICs
  • Power management and analog ICs
  • Sensors and interface solutions

NXP specializes in secure, connected solutions for automotive, industrial, and IoT applications.

NXP serves industries that require secure connectivity, embedded processing, and real-time control.

NXPs key industries include:

  • Automotive and electric vehicles (EVs)
  • Industrial automation and smart factories
  • Internet of Things (IoT) and smart devices
  • Mobile and secure identification (payments, access control)
  • Communications and networking infrastructure
  • Smart cities and infrastructure

These industries rely on NXP for security, connectivity, and high-reliability embedded solutions.

NXP is known for embedded processing, secure connectivity, and automotive semiconductor product lines.

Key NXP product lines include:

  • i.MX series - application processors for industrial and multimedia applications
  • MPC5500 - microcontrollers for automotive and industrial control applications
  • M68HC11- 8-bit microcontrollers for legacy embedded control systems
  • Layerscape processors - networking processors for communications infrastructure
  • Kinetis MCUs - scalable microcontrollers for industrial and IoT applications
  • LPC series - ARM-based microcontrollers for embedded systems
  • S32 automotive platform - processors and MCUs for automotive applications
  • PN series (NFC controllers) - near-field communication solutions
  • SR series (secure elements) - security ICs for authentication and payments
  • TEA series - power management ICs
Integrated Circuit FAQs

An integrated circuit (IC) is a semiconductor chip that contains transistors, resistors, capacitors, and other electronic components on a single silicon substrate. ICs are the foundation of modern electronics and power devices such as smartphones, computers, automotive systems, and industrial equipment.

Integrated circuits work by routing electrical signals through microscopic semiconductor components fabricated onto a silicon chip. Depending on the design, ICs can process, amplify, store, or control electronic data.

Integrated circuits are used in:

The different types of integrated circuits include:

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