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MSP430FR2433

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16 MHz MCU with 16KB FRAM, 4KB SRAM, 10-bit ADC, UART/SPI/I2C, timer

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Data sheet
User guides
Errata

MSP430FR2433

ACTIVE
Data sheet Order now

Product details

Non-volatile memory (kB) 16 RAM (KB) 4 ADC 10-bit SAR GPIO pins (#) 19 Features Real-time clock UART 2 USB No Number of I2Cs 1 SPI 2 Comparator channels (#) 0
Non-volatile memory (kB) 16 RAM (KB) 4 ADC 10-bit SAR GPIO pins (#) 19 Features 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
  • 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: <1 µA with VLO
    • 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 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 VQFN-24 package
    • 16 interrupt pins (P1 and P2) can wake MCU from low-power modes
  • Development tools and software
  • Family member (also see Device Comparison)
    • MSP430FR2433: 15KB of program FRAM, 512B of information FRAM, 4KB of RAM
  • Package options
    • 24 pin: VQFN (RGE)
    • 24-pin: DSBGA (YQW)
  • 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: <1 µA with VLO
    • 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 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 VQFN-24 package
    • 16 interrupt pins (P1 and P2) can wake MCU from low-power modes
  • Development tools and software
  • Family member (also see Device Comparison)
    • MSP430FR2433: 15KB of program FRAM, 512B of information FRAM, 4KB of RAM
  • Package options
    • 24 pin: VQFN (RGE)
    • 24-pin: DSBGA (YQW)

The MSP430FR2433 microcontroller (MCU) is part of the MSP430™ Value Line sensing portfolio, TI’s lowest-cost family of MCUs for sensing and measurement applications. The architecture, FRAM, and integrated peripherals, combined with extensive low-power modes, are optimized to achieve extended battery life in portable and battery-powered sensing applications in a small VQFN package (4 mm × 4 mm).

TI’s MSP430 ultra-low-power 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.

The MSP430FR2433 MCU is 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‑EXP430FR2433 LaunchPad™ development kit and the MSP‑TS430RGE24A 24-pin target development board. TI also provides free MSP430Ware™ software, which is available as a component of Code Composer Studio™ IDE desktop and cloud versions within TI Resource Explorer. The MSP430 MCUs are also supported by extensive online collateral, training, and online support through the E2E™ support forums.

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

The MSP430FR2433 microcontroller (MCU) is part of the MSP430™ Value Line sensing portfolio, TI’s lowest-cost family of MCUs for sensing and measurement applications. The architecture, FRAM, and integrated peripherals, combined with extensive low-power modes, are optimized to achieve extended battery life in portable and battery-powered sensing applications in a small VQFN package (4 mm × 4 mm).

TI’s MSP430 ultra-low-power 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.

The MSP430FR2433 MCU is 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‑EXP430FR2433 LaunchPad™ development kit and the MSP‑TS430RGE24A 24-pin target development board. TI also provides free MSP430Ware™ software, which is available as a component of Code Composer Studio™ IDE desktop and cloud versions within TI Resource Explorer. The MSP430 MCUs are also supported by extensive online collateral, training, and online support through the E2E™ support forums.

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 MSP430FR2433 Mixed-Signal Microcontroller datasheet (Rev. F) PDF | HTML 09 Dec 2019
* Errata MSP430FR2433 Device Erratasheet (Rev. S) PDF | HTML 27 May 2021
* User guide MSP430FR4xx and MSP430FR2xx Family User's Guide (Rev. I) 13 Mar 2019
User guide MSP430 FRAM Devices Bootloader (BSL) User's Guide (Rev. AB) PDF | HTML 22 Sep 2022
Application note MSP I2C Host With Battery Charger IC PDF | HTML 07 Mar 2022
Application note UART-to-I2C Bridge Using Low-Memory MSP430™ MCUs (Rev. A) PDF | HTML 29 Sep 2021
Application note Calendar and Tamper Detect Using MSP430FR2433 PDF | HTML 07 Sep 2021
Application note ESD Diode Current Specification (Rev. B) PDF | HTML 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) PDF | HTML 02 Aug 2021
Application note Low-Power Battery Voltage Measurement With MSP430FR MCU On-Chip VREF and ADC (Rev. B) PDF | HTML 02 Aug 2021
Application note Migrating from MSP430 F2xx and G2xx families to MSP430 FR4xx and FR2xx family (Rev. G) PDF | HTML 02 Aug 2021
Application note Migration from MSP430 FR58xx, FR59xx, and FR6xx to FR4xx and FR2xx (Rev. B) PDF | HTML 02 Aug 2021
Application note MSP430 System-Level ESD Considerations (Rev. B) PDF | HTML 14 Jul 2021
Application note Temperature, Humidity, and Optical I2C Sensors Made Simple With MSP430 MCU PDF | HTML 02 Jun 2021
User guide MSP430 MCUs Development Guide Book (Rev. A) PDF | HTML 13 May 2021
Technical article A world of possibilities: 5 ways to use MSP430™︎ MCUs in your design 29 Apr 2021
Application note 7-Segment LED Stopwatch Made Simple With Low-Cost MSP430 MCU PDF | HTML 19 Feb 2021
Application note Implement Digital DACs Using PWMs on Low-Cost MSP430 MCUs PDF | HTML 18 Feb 2021
Application note I2C I/O Expander Integrated In Low-Cost MSP430 MCU 02 Feb 2021
Application note Programmable System Wake Up Controller on Ultra-Low Power MSP430 MCU (Rev. A) PDF | HTML 26 Jan 2021
Application note Standalone RTC with Backup Memory with Low-Cost MSP430 MCU PDF | HTML 17 Dec 2020
More literature Simplify your system: How to offload multiple functions to an MSP430™ MCU 16 Dec 2020
Application note MSP430FR2xx and MSP430FR4xx DCO+FLL Application Guide 07 Dec 2020
Application note Monitor System with External Programmable Watchdog Timer w/ Low-Cost MSP430 MCU PDF | HTML 17 Nov 2020
Application note Programmable Clock Source with Low-Cost MSP430 MCU PDF | HTML 09 Nov 2020
Application note SPI I/O Expander Integrated In Low-Cost MSP430 MCU PDF | HTML 09 Nov 2020
Application note RGB LED Controller Using Low-Cost MSP430 MCU PDF | HTML 22 Oct 2020
Application note Voltage Monitor With Timestamp Logging Using Low-Cost MSP430 MCU PDF | HTML 22 Oct 2020
Technical article Integrating multiple functions within a housekeeping MSP430 microcontroller 05 Oct 2020
Application note Add Housekeeping Functions to an MSP430 MCU: ADC Wake and Transmit on Threshold 01 Oct 2020
Technical article How to design an infrared thermometer quickly 07 Apr 2020
Application note MSP430 System ESD Troubleshooting Guide PDF | HTML 13 Dec 2019
Technical article Embedding more sensing and measurement at embedded world 28 Feb 2018
White paper Capacitive Touch and MSP Microcontrollers (Rev. A) 27 Apr 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) PDF | HTML 01 Apr 2016
Application note VLO Calibration on the MSP430FR4xx and MSP430FR2xx Family (Rev. A) 19 Feb 2016
Application note MSP Code Protection Features PDF | HTML 07 Dec 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

Design & development

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

Development kit

MSP-EXP430FR2433 — MSP430FR2433 LaunchPad™ Development Kit

User guide: PDF | HTML
View options
Development kit

MSP-FET430U24A — Target Development Board (MSP-TS430RGE24A) and MSP-FET Bundle (Microcontrollers Not Included)​

Note: This kit does not include microcontroller samples. Any MCU samples must be ordered separately. 

The MSP-FET is a powerful flash emulation tool to quickly begin application development on MSP430 microcontrollers.

It includes a USB interface to program and debug the MSP430 in-system through the (...)

User guide: PDF | HTML
Order online
Development kit

MSP-TS430RGE24A — Target Development Board for MSP430FR2433 MCUs with 24-pins (microcontroller not included)

Note: This kit does not include MSP430 microcontroller samples. To sample the compatible devices, please visit the product page or select the related MCU after adding the tool to the TI Store cart: MSP430FR2433.

The MSP-TS430RGE24A is a standalone 24-pin ZIF target development board that is used to (...)

User guide: PDF | HTML
Not available on TI.com
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 (...)

User guide: PDF | HTML
Not available on TI.com
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 (...)

User guide: PDF | HTML
Not available on TI.com
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 (...)

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Driver or library

MSP-FRAM-UTILITIES — FRAM embedded software utilities for MSP ultra-low-power microcontrollers

The Texas Instruments FRAM Utilities is designed to grow as a collection of embedded software utilities that leverage the ultra-low-power and virtually unlimited write endurance of FRAM. The utilities are available for MSP430FRxx FRAM microcontrollers and provide example code to help start (...)
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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 (...)

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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
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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 (...)

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Support software

MSP430FR243x, MSP430FR253x, MSP430FR263x Code Examples (Rev. E)

SLAC700E.ZIP (366 KB)
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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.

(...)

Download
Reference designs

TIDA-050017 — TEC driver reference design for 3.3V inputs

Many electronic components require their temperature to be regulated for best performance and for longer operating life times. Precise temperature control down to 0.1°C is critical for certain applications such as laser diodes used in optical modules, where even a 1°C change in temperature (...)
Design guide: PDF
Schematic: PDF
Reference designs

PMP40496 — 2-cell boost charge system reference design with 5-V USB

This 5-V USB, 2-cell battery boost charger reference design includes a charger system and a 2-cell battery holder with a gauge that can be connected by a cable or work independently. The key components of the charger system include the BQ25883 boost charger, TUSB320LAI Type-C CC logic, (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-010021 — Wide-range (120° FoV at 1.6 meters) proximity sensing reference design with immunity to sunlight

Proximity sensing with wide field-of-view (FoV) is getting more and more popular and important for people detection in many applications. This reference design uses optical time-of-flight (ToF) techniques to build small and cost-effective proximity sensor systems. A single proximity and distance (...)
Design guide: PDF
Schematic: PDF
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 (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01588 — 10.8-V/15-W, >90% Efficiency, 2.4-cm2, Power Stage Reference Design for Brushed DC Servo Drive

This 15W, 12-mm x 20-mm, power stage reference design drives and controls the position of the brushed DC (BDC) motor operating from a three to six cell Li-ion battery. This highly efficient solution is optimized with a very small form factor that easily fits into the motor, and supports precise (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
DSBGA (YQW) 24 View options
VQFN (RGE) 24 View options

Ordering & quality

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

Support & training

TI E2E™ forums with technical support from TI engineers

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