Capacitive touch MCU with 8 touch IO (16 sensors), 8KB FRAM, 2KB SRAM, 15 IO, 10-bit ADC

MSP430FR2632

ACTIVE

Product details

Non-volatile memory (kB) 8 RAM (KB) 2 ADC 10-bit SAR GPIO pins (#) 15 Features Advanced sensing, Real-time clock UART 2 USB No Number of I2Cs 1 SPI 2 Comparator channels (#) 0
Non-volatile memory (kB) 8 RAM (KB) 2 ADC 10-bit SAR GPIO pins (#) 15 Features Advanced sensing, Real-time clock UART 2 USB No Number of I2Cs 1 SPI 2 Comparator channels (#) 0
DSBGA (YQW) 24 5 mm² 2.33 x 2.38 VQFN (RGE) 24 16 mm² 4 x 4
  • 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)
  • 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)

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.

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) 09 Dec 2019
* Errata MSP430FR2632 Device Erratasheet (Rev. S) 27 May 2021
* User guide MSP430FR4xx and MSP430FR2xx Family User's Guide (Rev. I) 13 Mar 2019
Application note ESD Diode Current Specification (Rev. B) 23 Aug 2021
Application note MSP430 FRAM Technology – How To and Best Practices (Rev. B) 12 Aug 2021
Application note Designing With the MSP430FR4xx and MSP430FR2xx ADC (Rev. A) 02 Aug 2021
Application note Low-Power Battery Voltage Measurement With MSP430FR MCU On-Chip VREF and ADC (Rev. B) 02 Aug 2021
Application note Migrating from MSP430 F2xx and G2xx families to MSP430 FR4xx and FR2xx family (Rev. G) 02 Aug 2021
Application note Migration from MSP430 FR58xx, FR59xx, and FR6xx to FR4xx and FR2xx (Rev. B) 02 Aug 2021
Application note MSP430 System-Level ESD Considerations (Rev. B) 14 Jul 2021
User guide CapTIvate™ Touch MCUs Getting Started Guide (Rev. A) 12 Jul 2021
User guide MSP430 MCUs Development Guide Book (Rev. A) 13 May 2021
Technical article A world of possibilities: 5 ways to use MSP430™︎ MCUs in your design 29 Apr 2021
User guide MSP430 FRAM Devices Bootloader (BSL) User's Guide (Rev. AA) 19 Feb 2021
Application note MSP430FR2xx and MSP430FR4xx DCO+FLL Application Guide 07 Dec 2020
White paper Capacitive Sensing Technology, Products, and Applications 19 May 2020
Technical article The capacitive touch trend is rising rapidly. Can you keep up? 15 May 2020
Application note Automating Capacitive Touch Sensor PCB Design Using OpenSCAD Scripts (Rev. B) 26 Feb 2020
Application note MSP430 System ESD Troubleshooting Guide 13 Dec 2019
White paper Enabling Noise Tolerant Capacitive Touch HMIs With MSP CapTIvate™ Technology (Rev. B) 12 Nov 2019
Application note Capacitive Touch Design Flow for MSP430™ MCUs With CapTIvate™ Technology (Rev. B) 14 Aug 2019
Application note Sensitivity, SNR, and design margin in capacitive touch applications (Rev. A) 25 Mar 2019
White paper Simplify smart speaker human machine interface with capacitive-touch technology 15 Feb 2018
Application note Capacitive Touch Through Metal Using MSP430™ MCUs With CapTIvate™ Technology (Rev. A) 31 Oct 2017
White paper Take your HMI design to the next level with transparent capacitive-touch technol 14 Sep 2017
Technical article Why knock on wood when touch will do? 25 May 2017
White paper Capacitive Touch and MSP Microcontrollers (Rev. A) 27 Apr 2017
Technical article Getting a grip on handheld devices is easier with capacitive touch sensing 28 Feb 2017
White paper Smart Fault Indicator with MSP430 FRAM Microcontrollers 26 Sep 2016
Application note General Oversampling of MSP ADCs for Higher Resolution (Rev. A) 01 Apr 2016
Application note VLO Calibration on the MSP430FR4xx and MSP430FR2xx Family (Rev. A) 19 Feb 2016
Application note MSP Code Protection Features 07 Dec 2015
White paper CapTIvate™ 터치 기술과 초저전력 MSP430™ FRAM 마이크로컨트롤러로 멋진 HMI 만들기 11 Nov 2015
White paper MSP430™ FRAM Microcontrollers With CapTIvate™ Touch Technology 14 Oct 2015
White paper Crypto-Bootloader - Secure In-Field Firmware Updates for Ultra-Low Power MCUs 19 Aug 2015
White paper Building Automation with MSP MCUs 27 Jul 2015
White paper If you don’t plan to scale, you plan to fail (Rev. A) 09 Feb 2015
White paper Closing the security gap with TI’s MSP430™ FRAM-based microcontrollers 15 Sep 2014
Application note MSP430 FRAM Quality and Reliability (Rev. A) 01 May 2014
White paper FRAM FAQs 23 Apr 2014
White paper Benchmarking MCU power consumption for ultra-low-power applications 26 Oct 2012

Design & development

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

Evaluation board

CAPTIVATE-BSWP — Capacitive touch self capacitance button, slider, wheel, and proximity sensor demonstration board

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 (...)
Evaluation board

CAPTIVATE-FR2633 — Capacitive touch MSP430FR2633 MCU board

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 (...)
In stock
Limit: 5
Evaluation board

CAPTIVATE-ISO — Capacitive touch communications isolation board

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 (...)

In stock
Limit: 5
Evaluation board

CAPTIVATE-METAL — Touch on metal capacitive sensing add-on board for the CapTIvate™ development kit

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 (...)

Development kit

CAPTIVATE-PHONE — Capacitive touch mutual capacitance sensor demonstration board with haptic feedback

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 (...)

Hardware programming tool

CAPTIVATE-PGMR — MSP430 CapTIvate MCU programmer

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 (...)
In stock
Limit: 10
Hardware programming tool

MSP-FET — MSP MCU Programmer and Debugger

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 (...)

In stock
Limit: 999999999
Hardware programming tool

MSP-GANG — MSP-GANG production programmer

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 (...)

Software development kit (SDK)

MSPWARE — MSP430Ware for MSP Microcontrollers

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 (...)

Application software & framework

MSPCAPTDSNCTR — CapTIvate™ Design Center GUI for MSP430™ Capacitive Sensing MCUs

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 (...)
Driver or library

MSP-PMBUS — PMBus Software Library for MSP MCUs

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

MSPMATHLIB — Floating Point Math Library for MSP430

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 (...)
IDE, configuration, compiler or debugger

CCSTUDIO-MSP — Code Composer Studio™ Integrated Development Environment for MSP Microcontrollers

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

ENERGYTRACE — EnergyTrace Technology

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 (...)

IDE, configuration, compiler or debugger

IAR-KICKSTART — IAR Embedded Workbench

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 (...)
From: IAR Systems
Software programming tool

UNIFLASH — UniFlash stand-alone flash tool for microcontrollers, Sitara™; processors and SimpleLink™

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 (...)

Design tool

MSP-3P-SEARCH — MSP Third party search tool

TI has partnered with multiple companies to offer a wide range of solutions and services for TI MSP devices. These companies can accelerate your path to production using MSP devices. Download this search tool to quickly browse third-party details and find the right third-party to meet your needs.

The (...)

Reference designs

TIDM-FRAM-EEPROM — EEPROM Emulation and Sensing With MSP430 FRAM Microcontrollers

This reference design describes an implementation of emulating electrically-erasable programmable read-only memory (EEPROM) using Ferroelectric Random Access Memory (FRAM) technology on MSP430™ ultra-low-power microcontrollers (MCUs) combined with the additional sensing capabilities that can (...)
Reference designs

TIDA-01012 — Wireless IoT, Bluetooth® Low Energy, 4½ Digit, 100kHz True RMS Digital Multimeter

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 (...)
Package Pins Download
DSBGA (YQW) 24 View options
VQFN (RGE) 24 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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