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Capacitive Touch MCU with 16 touch IO (24 sensors), 16KB FRAM, 2KB SRAM, 19 IO, 10-bit ADC

MSP430FR2533

ACTIVE

Product details

Parameters

Non-volatile memory (kB) 16 RAM (KB) 2 ADC 10-bit SAR GPIO pins (#) 19 Features Advanced sensing, Real-time clock UART 2 USB No I2C 1 SPI 2 Comparator channels (#) 0 open-in-new Find other MSP430 microcontrollers

Package | Pins | Size

TSSOP (DA) 32 89 mm² 11 x 8.1 VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other MSP430 microcontrollers

Features

  • CapTIvate™ technology – capacitive touch
    • Performance
      • Fast electrode scanning with four simultaneous scans
      • Support for high-resolution sliders with up to 1024 points
      • Proximity sensing
    • Reliability
      • Increased immunity to power line, RF, and other environmental noise
      • Built-in spread spectrum, automatic tuning, noise filtering, and debouncing algorithms
      • Enables reliable touch solutions with 10-V RMS common-mode noise, 4-kV electrical fast transients, and 15-kV electrostatic discharge, allowing for IEC‑61000-4-6, IEC‑61000-4-4, and IEC‑61000-4-2 compliance
      • Reduced RF emissions to simplify electrical designs
      • Support for metal touch and water rejection designs
    • Flexibility
    • Low power
      • <5 µA wake-on-touch with four sensors
      • Wake-on-touch state machine allows electrode scanning while CPU is asleep
      • Hardware acceleration for environmental compensation, filtering, and threshold detection
    • Ease of use
      • CapTIvate Design Center PC GUI lets engineers design and tune capacitive buttons in real time without having to write code
      • CapTIvate software library in ROM provides ample FRAM for customer application
  • Embedded microcontroller
    • 16-bit RISC architecture
    • Clock supports frequencies up to 16 MHz
    • Wide supply voltage range from 3.6 V down to 1.8 V (minimum supply voltage is restricted by SVS levels, see the SVS specifications)
  • Optimized ultra-low-power modes
    • Active mode: 126 µA/MHz (typical)
    • Standby: <5 µA wake-on-touch with four sensors
    • LPM3.5 real-time clock (RTC) counter with 32768-Hz crystal: 730 nA (typical)
    • Shutdown (LPM4.5): 16 nA (typical)
  • High-performance analog
    • 8-channel 10-bit analog-to-digital converter (ADC)
      • Internal 1.5-V reference
      • Sample-and-hold 200 ksps
  • Enhanced serial communications
    • Two enhanced universal serial communication interfaces (eUSCI_A) support UART, IrDA, and SPI
    • One eUSCI (eUSCI_B) supports SPI and I2C
  • Intelligent digital peripherals
    • Four 16-bit timers
      • Two timers with three capture/compare registers each (Timer_A3)
      • Two timers with two capture/compare registers each (Timer_A2)
    • One 16-bit timer associated with CapTIvate technology
    • One 16-bit counter-only RTC
    • 16-bit cyclic redundancy check (CRC)
  • Low-power ferroelectric RAM (FRAM)
    • Up to 15.5KB of nonvolatile memory
    • Built-in error correction code (ECC)
    • Configurable write protection
    • Unified memory of program, constants, and storage
    • 1015 write cycle endurance
    • Radiation resistant and nonmagnetic
    • High FRAM-to-SRAM ratio, up to 4:1
  • Clock system (CS)
    • On-chip 32-kHz RC oscillator (REFO)
    • On-chip 16-MHz digitally controlled oscillator (DCO) with frequency-locked loop (FLL)
      • ±1% accuracy with on-chip reference at room temperature
    • On-chip very low-frequency 10-kHz oscillator (VLO)
    • On-chip high-frequency modulation oscillator (MODOSC)
    • External 32-kHz crystal oscillator (LFXT)
    • Programmable MCLK prescalar of 1 to 128
    • SMCLK derived from MCLK with programmable prescalar of 1, 2, 4, or 8
  • General input/output and pin functionality
    • Total of 19 I/Os on TSSOP-32 package
    • 16 interrupt pins (P1 and P2) can wake MCU from low-power modes
  • Development tools and software
  • Family members (also see Device Comparison)
    • MSP430FR2633: 15KB of program FRAM, 512 bytes of information FRAM, 4KB of RAM, up to 16 self-capacitive or 64 mutual-capacitive sensors
    • MSP430FR2533: 15KB of program FRAM, 512 bytes of information FRAM, 2KB of RAM, up to 16 self-capacitive or 24 mutual-capacitive sensors
    • MSP430FR2632: 8KB of program FRAM, 512 bytes of information FRAM, 2KB of RAM, up to 8 self-capacitive or 16 mutual-capacitive sensors
    • MSP430FR2532: 8KB of program FRAM, 512 bytes of information FRAM, 1KB of RAM, up to 8 self-capacitive or 8 mutual-capacitive sensors
  • Package options
    • 32 pin: VQFN (RHB)
    • 32 pin: TSSOP (DA)
    • 24 pin: VQFN (RGE)
    • 24-pin: DSBGA (YQW)

All trademarks are the property of their respective owners.

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Description

The MSP430FR263x and MSP430FR253x are ultra-low-power MSP430™ microcontrollers for capacitive touch sensing that feature CapTIvate™ touch technology for buttons, sliders, wheels, and proximity applications. MSP430 MCUs with CapTIvate technology provide the most integrated and autonomous capacitive-touch solution in the market with high reliability and noise immunity at the lowest power. TI’s capacitive touch technology supports concurrent self-capacitance and mutual-capacitance electrodes on the same design for maximum flexibility. MSP430 MCUs with CapTIvate technology operate through thick glass, plastic enclosures, metal, and wood with operation in harsh environments including wet, greasy, and dirty environments.

TI capacitive touch sensing MSP430 MCUs are supported by an extensive hardware and software ecosystem with reference designs and code examples to get your design started quickly. Development kits include the MSP-CAPT-FR2633 CapTIvate technology development kit. TI also provides free software including the CapTIvate Design Center, where engineers can quickly develop applications with an easy-to-use GUI and MSP430Ware™ software and comprehensive documentation with the CapTIvate Technology Guide.

TI’s MSP430 ultra-low-power (ULP) FRAM microcontroller platform combines uniquely embedded FRAM and a holistic ultra-low-power system architecture, allowing system designers to increase performance while lowering energy consumption. FRAM technology combines the low-energy fast writes, flexibility, and endurance of RAM with the nonvolatility of flash.

For complete module descriptions, see the MSP430FR4xx and MSP430FR2xx Family User’s Guide.

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Technical documentation

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Type Title Date
* Data sheet MSP430FR263x, MSP430FR253x Capacitive Touch Sensing Mixed-Signal Microcontrollers datasheet (Rev. E) Dec. 09, 2019
* Errata MSP430FR2533 Device Erratasheet (Rev. R) Oct. 09, 2019
* User guide MSP430FR4xx and MSP430FR2xx Family User's Guide (Rev. I) Mar. 13, 2019
Technical article A world of possibilities: 5 ways to use MSP430™︎ MCUs in your design Apr. 29, 2021
User guide MSP430 FRAM Devices Bootloader (BSL) User's Guide (Rev. AA) Feb. 19, 2021
Application note MSP430FR2xx and MSP430FR4xx DCO+FLL Application Guide Dec. 07, 2020
User guide MSP430 MCUs Development Guide Book Oct. 09, 2020
Application note MSP430 FRAM Technology – How To and Best Practices (Rev. A) Jun. 30, 2020
White paper Capacitive Sensing Technology, Products, and Applications May 19, 2020
Application note Automating Capacitive Touch Sensor PCB Design Using OpenSCAD Scripts (Rev. B) Feb. 26, 2020
Application note MSP430 System-Level ESD Considerations (Rev. A) Jan. 13, 2020
Application note Designing With the MSP430FR4xx and MSP430FR2xx ADC Dec. 30, 2019
Application note MSP430 System ESD Troubleshooting Guide Dec. 13, 2019
White paper Enabling Noise Tolerant Capacitive Touch HMIs With MSP CapTIvate™ Technology (Rev. B) Nov. 12, 2019
Application note Low-Power Battery Voltage Measurement With MSP430FR MCU On-Chip VREF and ADC (Rev. A) Nov. 04, 2019
Application note Capacitive Touch Design Flow for MSP430™ MCUs With CapTIvate™ Technology (Rev. B) Aug. 14, 2019
Application note ESD Diode Current Specification (Rev. A) Jul. 10, 2019
Application note Migrating from MSP430 F2xx and G2xx families to MSP430 FR4xx and FR2xx family (Rev. F) Mar. 26, 2019
Application note Migration from MSP430 FR58xx, FR59xx, and FR6xx to FR4xx and FR2xx (Rev. A) Mar. 26, 2019
Application note Sensitivity, SNR, and design margin in capacitive touch applications (Rev. A) Mar. 25, 2019
White paper Simplify smart speaker human machine interface with capacitive-touch technology Feb. 15, 2018
Application note Capacitive Touch Through Metal Using MSP430™ MCUs With CapTIvate™ Technology (Rev. A) Oct. 31, 2017
White paper Take your HMI design to the next level with transparent capacitive-touch technol Sep. 14, 2017
Technical article Why knock on wood when touch will do? May 25, 2017
White paper Capacitive Touch and MSP Microcontrollers (Rev. A) Apr. 27, 2017
Technical article Getting a grip on handheld devices is easier with capacitive touch sensing Feb. 28, 2017
Technical article Rain on this touch panel parade won’t matter Nov. 28, 2016
White paper Smart Fault Indicator with MSP430 FRAM Microcontrollers Sep. 26, 2016
Application note General Oversampling of MSP ADCs for Higher Resolution (Rev. A) Apr. 01, 2016
Application note VLO Calibration on the MSP430FR4xx and MSP430FR2xx Family (Rev. A) Feb. 19, 2016
Application note MSP Code Protection Features Dec. 07, 2015
White paper CapTIvate™ 터치 기술과 초저전력 MSP430™ FRAM 마이크로컨트롤러로 멋진 HMI 만들기 Nov. 11, 2015
White paper MSP430™ FRAM Microcontrollers With CapTIvate™ Touch Technology Oct. 14, 2015
White paper Crypto-Bootloader - Secure In-Field Firmware Updates for Ultra-Low Power MCUs Aug. 19, 2015
White paper Building Automation with MSP MCUs Jul. 27, 2015
White paper If you don’t plan to scale, you plan to fail (Rev. A) Feb. 09, 2015
White paper Closing the security gap with TI’s MSP430™ FRAM-based microcontrollers Sep. 15, 2014
Application note MSP430 FRAM Quality and Reliability (Rev. A) May 01, 2014
White paper FRAM FAQs Apr. 23, 2014
White paper Benchmarking MCU power consumption for ultra-low-power applications Oct. 26, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
Description
The CapTIvate™ button, slider, wheel, and proximity demonstration board (CAPTIVATE-BSWP) is a simple evaluation platform for self-capacitance capacitive touch sensors in a variety of configurations.  The sensor panel demonstrates low-power design principles for a battery powered (...)
Features
  • Interfaces to MSP430 CapTIvate ecosystem MCU boards, such as the CAPTIVATE-FR2633
  • 16 capacitive touch elements, including 8 buttons, one 3-element wheel, one 4-element slider, and one proximity sensor
  • Wake-on-proximity operation with 5µA average current
EVALUATION BOARD Download
19.99
Description
The CapTIvate™ MSP430FR2633 MCU board (CAPTIVATE-FR2633) is a simple evaluation board for evaluating capacitive touch and proximity sensors through the use of plug-in sensor boards (sold seperately).  The MCU board has a 20-pin female debug connector for debugging the on-board (...)
Features
  • Interfaces to CapTIvate ecosystem sensor panel boards such as the CAPTIVATE-BSWP
  • 16 capacitive touch enabled IOs available on the sensor panel connector
  • Limited BoosterPack module support
  • Provision for an external 2-pin power header that can be used to provide external power to the PCB
EVALUATION BOARD Download
14.99
Description

The MSP430™ CapTIvate™ isolation board (CAPTIVATE-ISO) is an add-on board for the CapTIvate Development Kits (MSP-CAPT-FR2633 or CAPTIVATE-FR2676) that allows a way to maintain Spy-by-Wire, I2C, and UART communication between the CAPTIVATE-PGMR and the CapTIvate MCU Board when the MCU Board is (...)

Features
  • Provides digital isolation for Spy-by-Wire, I2C, and UART
  • No shared power or ground
EVALUATION BOARD Download
Description

The CapTIvate™ metal touch panel (CAPTIVATE-METAL) is an add-on board for the CapTIvate development kits (CAPTIVATE-FR2633 or CAPTIVATE-FR2676) that allows designers and engineers to evaluate touch on metal technology. This alternative technology to traditional capacitive touch sensors enables (...)

Features
  • Capacitive touch with metal overlays
  • Variable force touch detection
  • Multi-key touch
  • 7-segment display feedback
  • Water, gunk and dirt proof
DEVELOPMENT KIT Download
Description

This MSP430™ CapTIvate™ demonstration board (CAPTIVATE-PHONE) is a simple evaluation platform for mutual capacitance capacitive touch sensors using a variety of configurations in a real-world application.  The sensor panel demonstrates how to matrix mutual capacitance touch sensors (...)

Features
  • Interfaces to CapTIvate ecosystem MCU boards
  • Implements 29 capactive touch elements using just 12 CapTIvate IOs
  • Contains 17 buttons, two 4-element sliders, one 3-element wheel, and one guard channel
  • Implements a guard channel for palm rejection
  • Provides haptic feedback using the TI DRV2605L haptic (...)
HARDWARE PROGRAMMING TOOL Download
19.99
Description
The MSP430 CapTIvate MCU programmer is available standalone or as part of the MSP CapTIvate™ MCU development kit, a comprehensive, easy-to-use platform to evaluate MSP430FR2633 microcontroller with capacitive touch technology.  The programmer/debugger board can be used with the (...)
Features
  • Programmer board compatible with CapTIvate MCU boards
  • EnergyTrace Technology to measure power consumption with Code Composer Studio
  • CapTIvate programming header for interfacing with CapTIvate MCU boards
  • USB HID-Bridge communications interface allows easy debug data transfer between the target and a PC (...)
HARDWARE PROGRAMMING TOOL Download
document-generic User guide
115
Description

The MSP-FET is a powerful emulation development tool – often called a debug probe – which allows users to quickly begin development on MSP low-power microcontrollers (MCU).

It supports programming and real-time debugging over both JTAG and SBW interfaces. Furthermore, the MSP-FET also provides a (...)

Features
  • USB debugging interface to connect any MSP430 MCU to a computer for real-time, in-system programming and debugging
  • Enables EnergyTrace™ technology for energy measurement and debugging on all MSP430 and MSP432 devices in the Code Composer Studio and IAR Embedded Workbench development environments
  • (...)
HARDWARE PROGRAMMING TOOL Download
document-generic User guide
Description

The MSP Gang Programmer (MSP-GANG) is a MSP430™/MSP432™ device programmer that can program up to eight identical MSP430/MSP432 Flash or FRAM devices at the same time. It connects to a host PC using a standard RS-232 or USB connection and provides flexible programming options that allow (...)

Features
  • Quickly and reliably program Flash or FRAM-based MSP devices via RS-232 or USB interface
  • Several programming modes:
    • Interactive Mode – Programming while connected to PC using the MSP GANG Programmer GUI
    • Program from Image – An image can be stored, which contains configuration options and code (...)

Software development

SOFTWARE DEVELOPMENT KIT (SDK) Download
MSP430Ware for MSP Microcontrollers
MSPWARE MSP430Ware is a collection of resources that help users to effectively create and build MSP430 code. These resources support ALL MSP430 microcontrollers (MCUs). As one user mentioned, “It’s essentially everything developers need to become MSP430 microcontroller experts!”

This complete collection of (...)

Features
  • Collection of MSP design resources
  • Available within CCS, as a standalone executable, or as part of TI’s new Cloud-based tools
  • Auto-updates through the web
  • Sleek & intuitive GUI for browsing content
  • Features the MSP Driver Library
  • Automatic filtering of content using a unique 2-pane view
APPLICATION SOFTWARE & FRAMEWORK Download
CapTIvate™ Design Center GUI for MSP430™ Capacitive Sensing MCUs
MSPCAPTDSNCTR The CapTIvate™ Design Center GUI is a one-stop resource for everything related to CapTIvate capacitive sensing technology integrated on TI MSP430™ microcontrollers. It includes tools, documentation and software examples that can simplify and accelerate capacitive touch designs. Start by (...)
Features
  • Set up a design in less than five minutes
  • Create, configure and tune capacitive sensors without writing a single line of code
  • Automatically generate source code projects for code composer studio™ and IAR Embedded Workbench® IDEs
  • Support for slider, wheel, buttons and proximity sensors
  • Real time target (...)
DRIVER OR LIBRARY Download
PMBus Software Library for MSP MCUs
MSP-PMBUS The MSP Power Management Bus (PMBus) embedded software library is a free C library for enabling PMBus master implementation on MSP microcontrollers that have eUSCI/USCI serial communication peripherals. In addition, the library supports alert response (for host notification in the presence of (...)
DRIVER OR LIBRARY Download
Floating Point Math Library for MSP430
MSPMATHLIB MSPMathLib is an accelerated floating point math library for MSP430™ MCUs that delivers up to 26x faster computation for the most commonly used math functions. The library seamlessly integrates with projects to replace floating point math functions such as sin, cos, tan, log, exp and sqrt (...)
Features
  • Up to 26x higher performance when executing floating point scalar math functions
  • Remains in low power modes longer due to the increased performance
  • Free and easy to use –  now integrated in CCS and IAR
IDE, CONFIGURATION, COMPILER OR DEBUGGER Download
Code Composer Studio™ Integrated Development Environment for MSP Microcontrollers
CCSTUDIO-MSP

Code Composer Studio is an integrated development environment (IDE) that supports TI's Microcontroller and Embedded Processors portfolio. Code Composer Studio comprises a suite of tools used to develop and debug embedded applications. It includes an optimizing C/C++ compiler, source code editor (...)

IDE, CONFIGURATION, COMPILER OR DEBUGGER Download
EnergyTrace Technology
ENERGYTRACE EnergyTrace™ software for MSP430™ MCUs, MSP432™ MCUs, CC13xx wireless MCUs and CC26xx wireless MCUs is an energy-based code analysis tool that measures and displays the energy profile of an application and helps optimize it for ultra-low-power consumption.

As most developers know, it is difficult to (...)

Features
  • Current measurement is enabled for all MSP430 MCUs, MSP432 MCUs and connectivity devices
  • Tracing of CPU states is available on selected MSP430 MCUs, MSP432 MCUs, CC13x2 wireless MCUs and CC26x2 wireless MCUs 
  • Tracing of peripheral states is also available on selected MSP430 MCUs, CC13x2 (...)
IDE, CONFIGURATION, COMPILER OR DEBUGGER Download
IAR Embedded Workbench
Provided by IAR Systems IAR Embedded Workbench delivers a complete development toolchain for building and debugging embedded applications for your selected target microcontroller. The included IAR C/C++ Compiler generates highly optimized code for your application, and the C-SPY Debugger is a fully integrated debugger for (...)
SOFTWARE PROGRAMMING TOOL Download
UniFlash stand-alone flash tool for microcontrollers, Sitara™; processors and SimpleLink™
UNIFLASH Supported devices: CC13xx, CC25xx, CC26xx, CC3x20, CC3x30, CC3x35, Tiva, C2000, MSP43x, Hercules, PGA9xx, IWR12xx, IWR14xx, IWR16xx, IWR18xx , IWR68xx, AWR12xx, AWR14xx, AWR16xx, AWR18xx.  Command line only: AM335x, AM437x, AM571x, AM572x, AM574x, AM65XX, K2G

CCS Uniflash is a standalone tool used to (...)

SUPPORT SOFTWARE Download
SLAC700E.ZIP (366 KB)

Reference designs

REFERENCE DESIGNS Download
Gesture-based capacitive touch speaker interface reference design
TIDM-02004 — The Gesture-Based Capacitive Touch Speaker Interface Reference Design demonstrates an ultra-low-power panel for controlling speaker systems. The design uses an MSP430™ microcontroller with CapTIvate™ technology for recognizing capacitive touch events. Using a self-capacitance (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Liquid Tolerant Capacitive Touch Keypad Reference Design
TIDM-1021 The Liquid Tolerant Capacitive Touch Keypad Design (TIDM-1021) is a reference design for implementing liquid tolerant capacitive touch human-machine interfaces (HMIs).  It integrates TI's MSP430FR2633 microcontroller (MCU) featuring high performance CapTIvate™ touch technology with an (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
EEPROM Emulation and Sensing With MSP430 FRAM Microcontrollers
TIDM-FRAM-EEPROM — This TI Design reference design describes an implementation of emulating EEPROM using Ferroelectric Random Access Memory (FRAM) technology on MSP430™ ultra-low-power microcontrollers (MCUs) combined with the additional sensing capabilities that can be enabled when using an MCU. The reference (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Wireless IoT, Bluetooth® Low Energy, 4½ Digit, 100kHz True RMS Digital Multimeter
TIDA-01012 — Many products are now becoming connected through the Internet of Things (IoT), including test equipment such as digital multimeters (DMM).  Enabled by Texas Instruments’ SimpleLink™ ultra-low power wireless microcontroller (MCU) platform, the TIDA-01012 reference design demonstrates (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
TSSOP (DA) 32 View options
VQFN (RHB) 32 View options

Ordering & quality

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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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