CapTIvate™ Touch MCUs

Learn about MSP430™ MCUs with CapTIvate touch technology

MSP430™ MCUs with CapTIvate touch technology make it easier to add capacitive touch capabilities to building, industrial and personal applications all at the world’s lowest power. CapTIvate technology delivers the industry’s most noise immune, IEC61000-4-6 certified capacitive sensing MCU-based solutions. With flexibility to support capacitive buttons, sliders, wheels, and proximity sensors as well as operation through thick glass, plastic and metal overlays, and in moist, dirty or greasy conditions, MCUs with CapTIvate touch technology deliver sleek HMI options for any application.

Touch the Revolution with MSP MCUs featuring CapTIvate™ technology

MSP MCUs with CapTIvate technology are the most noise-immune capacitive touch microcontrollers, and the first to offer IEC61000-4-x certified solutions. These FRAM-based MCUs offer support for metal touch, the industry's highest resolution slide.

Application videos

Video title Description Additional resources
Touch through glass This TI Design uses MSP430™ microcontrollers (MCUs) with TI CapTIvate™ technology which allows the operator to interact with the keypad without needing to open the enclosure, saving time by avoiding work permit or plant shutdown. Download reference design
64-button capacitive touch panel A 64-button ultra-low-power touch panel reference design controlled by a single MSP430 MCU with CapTIvate technology. Mutual capacitance technology enables all 64-buttons to be tightly packed and controlled with only 16 MCU pins.4-A Download reference design
Electronic lock with capacitive touch Touchpads and other button applications in outdoor or other wet conditions benefit from capacitive sensing touch buttons using TI’s CapTIvate technology that operate in wet and dirty conditions and have less failure than mechanical buttons. Download reference design
Remote control with capacitive touch Capacitive touch MCUs featuring CapTIvate technology replaces remote control mechanical buttons while delivering more functionality including tap and slide gestures, wake-on grip detection, high-resolution volume slider and multi-button keypad. Download reference design
Grip detection with capacitive touch Capacitive touch MCUs featuring CapTIvate technology replaces remote control mechanical buttons while delivering more functionality including tap and slide gestures, wake-on grip detection, high-resolution volume slider and multi-button keypad. Read more
Access control panel with Bluetooth® low energy Demonstration of Bluetooth low energy and capacitive touch enabled keypads, access panels and smart eLocks using the SimpleLink™ MSP432™ SDK with the SimpleLink MSP432™ MCU, SimpleLink BLE CC2650 network processor, and CapTIvate™ touch technology. Download reference design
Capacitive touch access panel with SimpleLink™ MSP432™ MCUs A demonstration of how to interface an MSP430 microcontroller (MCU) with CapTIvate technology to an MSP432 host MCU using the CapTIvate software Library communications module for access panels, smart eLocks, keypads and more. Download reference design

Training videos

Video title Description Additional resources
Rejection in Capacitive Touch Designs This video highlights the moisture rejection capabilities of MSP capacitive touch MCUs featuring CapTIvate technology and the MSP CapTIvate MCU Development Kit. Learn more
Designing Capacitive Button, Slider and Wheel Interfaces This video demonstrates the various configurations of button, slider and wheel interfaces enabled by MSP capacitive touch MCUs with CapTIvate technology and the MSP CapTIvate MCU Development Kit. Learn more
Low-power features of MSP430 MCUs with CapTIvate technology This video highlights the low-power features of MSP capacitive touch MCUs with CapTIvate technology, the lowest-power capacitive touch MCUs. Learn more
Tune Capacitive Sensors in 5 Minutes or Less with CapTIvate MCUs This video demonstrates how to tune capacitive sensors in five minutes or less, using the MSP CapTIvate Design Center GUI, a drag-and-drop software tool for MSP MCUs featuring CapTIvate technology. Learn more
Noise Immunity in Capacitive Touch Designs with MSP MCUs featuring CapTIvate™ technology This video details the noise immunity features of MSP capacitive touch MCUs featuring CapTIvate technology and the MSP CapTIvate MCU Development Kit. Learn more
Choosing between CapTIvate™ technology, capacitive and inductive sensing solutions TI’s CapTIvate, Inductive sensing and capacitive sensing technologies, provide you with a toolbox for enabling a variety of human machine interfaces such as Proximity sensing, buttons, sliders, wheels, dials as well as 3D gestures. This presentation will briefly go over these 3 technologies from TI and also provide guideline on which technology will work best for what application. Learn more

Technical documents

MSP430FR263x, MSP430FR253x mixed-signal microcontrollers

Datasheet for MSP430 MCUs with CapTIvate touch technology

Download (PDF, 2.2MB)

MSP430™ FRAM microcontrollers with CapTIvate™ technology

An introduction to capacitive touch MCUs with CapTIvate technology

Download (PDF, 1.12MB)

CapTIvate technology guide

Complete online guide on CapTIvate technology

Read

Capacitive touch and MSP microcontrollers

Overview of MSP MCUs with capacitive touch

Download (PDF, 1MB)

Enabling noise-tolerant capacitive-touch HMIs with MSP CapTIvate™ technology

Overview of capacitive touch-enabled human machine interfaces (HMIs) with CapTIvate technology

Download (PDF, 1.35MB)

Develop with CapTIvate touch technology

It is easy to get your capacitive touch MCU-based design started with TI CapTIvate technology. With device options, a development kit, CapTIvate design center, software, reference designs, code examples and in-depth documentation and training, you can get your capacitive sensing applications started quickly.

Links to resources are below. If you need more help visit the TI E2E Forums where you can join the conversation on MSP430 MCU topics including CapTIvate technology.

Devices

MSP MCUs with FRAM and CapTIvate technology are the most noise immune capacitive touch MCUs, with IEC61000-4-6 certified solutions and the most configurable combination of capacitive buttons, sliders, wheels, and proximity sensors, all at the world’s lowest power.

MSP MCUs with CapTIvate technology

MSP430FR2532 MSP430FR2632 MSP430FR2533 MSP430FR2633
FRAM/RAM 8.5K/1K 8.5K/2K 15.5K/2K 15.5K/4K
# Buttons Self-capacitance: up to 8 Mutual capacitance: up to 8 Self-capacitance: up to 8 Mutual capacitance: up to 16 Self-capacitance: up to 16 Mutual capacitance: up to 16 Self-capacitance: up to 16 Mutual capacitance: up to 64
Package 24-pin QFN 24-pin QFN and DSBGA 32-pin TSSOP and QFN 32-pin TSSOP and QFN 24-pin DSBGA

For more detailed documentation of resource based device selection please go to ti.com/captivatedeviceselection

Software

CapTIvate Design Center

CapTIvate Design Center is a one-stop shop for CapTIvate technology tools, documentation, design guides and code examples. Captivate Design Center allows developers of all programming skill levels to create capacitive touch solutions with minimal effort; configure and tune your sensors in five minutes or less. The program is available for Microsoft® Windows®, Apple® OS X® and Linux®.

Tools

MSP CapTIvate MCU Development Kit

The MSP CapTIvate MCU Development Kit is a comprehensive, easy-to-use platform to evaluate MSP430FR2633 microcontroller with capacitive touch technology. The kit contains the MSP430FR2633-based processor board, a programmer/debugger board with EnergyTrace™ technology to measure energy consumption with the Code Composer Studio™ IDE, and sensor boards for evaluating self-capacitance, mutual capacitance, gesture and proximity sensing. MSP MCUs with CapTIvate technology are the industry’s lowest power capacitive touch MCUs with 10 V rms noise immunity and support for dirt-proof, glove-friendly designs.

Capacitive sensor design guide

MSP CapTIvate PCB Design Guidelines for MCU, Overlays and LED backlighting

This training covers the fundamental design techniques required to implement a successful capacitive sending hardware design.

Video title Description Additional resources
PCB Design Guidelines for Moisture Tolerance and Spill Detection A good capacitive sensor design can improve a product's HMI (human machine interface) performance and robustness. This video introduces the design techniques that can help reduce false touch detection for applications that are exposed to condensation, moisture, spray and splash conditions. Learn more
PCB Design Guidelines for Mutual Capacitive Sensors A good capacitive sensor design can improve a product's HMI (human machine interface) performance and robustness. This video introduces the fundamentals of mutual capacitance as well as suggested guidelines for button, slider and wheel sensor PCB layout. Learn more
PCB Design Guidelines for Proximity Sensors A good capacitive sensor design can improve a product's HMI (human machine interface) performance and robustness. A properly designed proximity sensor can be used to detect a finger or hand approaching from some distance away. Using a proximity sensor to wake up a product from sleep or illuminating keys or buttons in a dark environment are typical uses of a proximity sensor. Learn more
PCB Design Guidelines for Self Capacitive Sensors A good capacitive sensor design can improve a product's HMI (human machine interface) performance and robustness. This video introduces the fundamentals of self capacitance as well as suggested guidelines for button, slider and wheel sensor PCB layout. Learn more
What are Common EMC Challenges with Capacitive Touch Designs? This training video introduces EMC challenges for capacitive touch product design. Electrostatic discharge (ESD), electrical fast transients (EFT) and conducted noise (CNI) are introduced, and examples of the effects of conducted noise to a capacitive touch system are shown. Learn more
What are the Noise Immunity Features of CapTIvate MCUs? This training video introduces the noise immunity features of the CapTIvate MCU. Key features such as charge transfer, offset subtraction, frequency hopping, and CapTIvate's dedicated LDO are discussed. An example of how frequency hopping improves noise immunity for mutual capacitance touch sensors is shown. Learn more
How do I Design Capacitive Touch Interfaces with EMC in Mind? This training video introduces the three sided approach to designing noise-tolerant capacitive touch interfaces. The three-sided approach includes hardware design techniques, CapTIvate peripheral features, and digital signal processing techniques. Example reference designs that apply the three-sided approach are introduced. Learn more

Buy CapTIvate touch microcontroller products

The capacitive touch MCU portfolio featuring CapTIvate technology has several options once you are ready to make a purchase and start development. Make sure to review our development resources and reach out to the TI E2E Forum if you need any help along the way.

Devices
MSP430FR2633 16KB FRAM / 4KB RAM
32-pin TSSOP and QFN
24-pin DSBGA
Order now
MSP430FR2632 8KB FRAM / 2KB RAM
24-pin QFN
24-pin DSBGA
Order now
MSP430FR2533 16KB FRAM / 2 KB RAM
32-pin TSSOP and QFN
Order now
MSP430FR2532 8KB FRAM / 1KB RAM
24-pin QFN
Order now
Tools
CapTIvate Development Kit Complete development kit for MSP430 MCUs with CapTIvate technology Order now
Software
CapTIvate Design Center A one stop resource including tools, documentation and software examples Get software
Code Composer Studio™ IDE Code Composer Studio IDE comprises a suite of tools used to develop and debug embedded applications Get software