Product details

CPU MSP430 Frequency (MHz) 8 Flash memory (kByte) 16 RAM (kByte) 0.5 ADC type Slope Features Advanced sensing, LCD, Scan interface UART 0 Security Secure debug Number of ADC channels 0 SPI 0 USB No Operating temperature range (°C) -40 to 85 Rating Catalog Operating system BareMetal (No OS), TI RTOS Hardware accelerators 0 Nonvolatile memory (kByte) 16 Number of GPIOs 48 Number of I2Cs 0
CPU MSP430 Frequency (MHz) 8 Flash memory (kByte) 16 RAM (kByte) 0.5 ADC type Slope Features Advanced sensing, LCD, Scan interface UART 0 Security Secure debug Number of ADC channels 0 SPI 0 USB No Operating temperature range (°C) -40 to 85 Rating Catalog Operating system BareMetal (No OS), TI RTOS Hardware accelerators 0 Nonvolatile memory (kByte) 16 Number of GPIOs 48 Number of I2Cs 0
LQFP (PM) 64 144 mm² (12 mm × 12 mm)
  • Low Supply Voltage Range: 1.8 V to 3.6 V
  • Ultra-Low-Power Consumption:
    • Active Mode: 200 µA at 1 MHz, 2.2 V
    • Standby Mode: 0.7 µA
    • Off Mode (RAM Retention): 0.1 µA
  • Five Power-Saving Modes
  • Wake Up From Standby Mode in Less Than 6 µs
  • Frequency-Locked Loop, FLL+
  • 16-Bit RISC Architecture,
    125-ns Instruction Cycle Time
  • Scan Interface for Background Water, Heat, and Gas Volume Measurement
  • 16-Bit Timer_A With Three Capture/Compare Registers
  • 16-Bit Timer_A With Five Capture/Compare Registers
  • Integrated LCD Driver for Up to 96 Segments
  • On-Chip Comparator
  • Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse
  • Brownout Detector
  • Supply Voltage Supervisor and Monitor With Programmable Level Detection
  • Bootstrap Loader (BSL) in Flash Devices
  • Family Members Include:
    • MSP430FW423
      8KB + 256B Flash Memory, 256B RAM
    • MSP430FW425
      16KB + 256B Flash Memory, 512B RAM
    • MSP430FW427
      32KB + 256B Flash Memory, 1KB RAM
    • MSP430FW428
      48KB + 256B Flash Memory, 2KB RAM
    • MSP430FW429
      60KB + 256B Flash Memory, 2KB RAM
  • Available in 64-Pin Quad Flat Pack (QFP)
  • For Complete Module Descriptions, See the , Literature Number SLAU056
  • Low Supply Voltage Range: 1.8 V to 3.6 V
  • Ultra-Low-Power Consumption:
    • Active Mode: 200 µA at 1 MHz, 2.2 V
    • Standby Mode: 0.7 µA
    • Off Mode (RAM Retention): 0.1 µA
  • Five Power-Saving Modes
  • Wake Up From Standby Mode in Less Than 6 µs
  • Frequency-Locked Loop, FLL+
  • 16-Bit RISC Architecture,
    125-ns Instruction Cycle Time
  • Scan Interface for Background Water, Heat, and Gas Volume Measurement
  • 16-Bit Timer_A With Three Capture/Compare Registers
  • 16-Bit Timer_A With Five Capture/Compare Registers
  • Integrated LCD Driver for Up to 96 Segments
  • On-Chip Comparator
  • Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse
  • Brownout Detector
  • Supply Voltage Supervisor and Monitor With Programmable Level Detection
  • Bootstrap Loader (BSL) in Flash Devices
  • Family Members Include:
    • MSP430FW423
      8KB + 256B Flash Memory, 256B RAM
    • MSP430FW425
      16KB + 256B Flash Memory, 512B RAM
    • MSP430FW427
      32KB + 256B Flash Memory, 1KB RAM
    • MSP430FW428
      48KB + 256B Flash Memory, 2KB RAM
    • MSP430FW429
      60KB + 256B Flash Memory, 2KB RAM
  • Available in 64-Pin Quad Flat Pack (QFP)
  • For Complete Module Descriptions, See the , Literature Number SLAU056

The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the device to wake up from low-power modes to active mode in less than 6 µs.

The MSP430FW42x series are microcontroller configurations with two built-in 16-bit timers, a comparator, 96 LCD segment drive capability, a scan interface, and 48 I/O pins.

Typical applications include sensor systems that capture analog signals, convert them to digital values, and process the data and transmit them to a host system. The comparator and timers make the configurations ideal for gas, heat, and water meters, industrial meters, counter applications, and hand-held meters.

The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the device to wake up from low-power modes to active mode in less than 6 µs.

The MSP430FW42x series are microcontroller configurations with two built-in 16-bit timers, a comparator, 96 LCD segment drive capability, a scan interface, and 48 I/O pins.

Typical applications include sensor systems that capture analog signals, convert them to digital values, and process the data and transmit them to a host system. The comparator and timers make the configurations ideal for gas, heat, and water meters, industrial meters, counter applications, and hand-held meters.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet MSP430FW42x Mixed Signal Microcontroller datasheet (Rev. E) Dec 17, 2013
* Errata MSP430FW425 Device Erratasheet (Rev. G) May 29, 2018
Application note Migration Guide From MSP430 MCUs to MSPM0 MCUs (Rev. B) PDF | HTML Jun 2, 2025
Application note Design Considerations When Using the MSP430 Graphics Library (Rev. A) PDF | HTML Aug 9, 2023
Application note Li-Ion Battery Charger Solution Using an MSP430™ MCU (Rev. B) PDF | HTML Apr 1, 2022
Application note ESD Diode Current Specification (Rev. B) PDF | HTML Aug 23, 2021
User guide MSP430 MCUs Development Guide Book (Rev. A) PDF | HTML May 13, 2021
Application note MSP430 System ESD Troubleshooting Guide PDF | HTML Dec 13, 2019
Application note Programming a Flash-Based MSP430 MCU Using the JTAG Interface (Rev. H) Mar 15, 2019
Application note Interfacing the 3-V MSP430 MCU to 5-V Circuits (Rev. A) PDF | HTML Oct 3, 2018
Application note Understanding MSP430 Flash Data Retention (Rev. A) PDF | HTML Aug 24, 2018
Application note MSP430 Flash Memory Characteristics (Rev. B) PDF | HTML Aug 24, 2018
Application note Mixing C and Assembler With MSP430™ MCUs (Rev. A) PDF | HTML Aug 7, 2018
Application note Using the TPS3619 With MSP430 Microcontrollers (Rev. B) PDF | HTML Aug 6, 2018
Application note MSP430 LFXT1 Oscillator Accuracy (Rev. A) Aug 3, 2018
Application note MSP430FW42x Scan Interface SIFDACR Calibration (Rev. A) Aug 2, 2018
Application note MSP430FW42x Scan Interface SIFCLK Adjustment (Rev. A) Aug 2, 2018
Application note Rotary/Linear Motion Detection Using the MSP430 Scan Interface & Optical Sensors (Rev. A) Jul 18, 2018
Application note Efficient Multiplication and Division Using MSP430 MCUs (Rev. A) Jul 18, 2018
Application note CRC Implementation with MSP430 MCUs (Rev. A) Jun 21, 2018
Application note Implementing a Direct Thermocouple Interface With the MSP430F4xx and ADS1240 (Rev. B) May 29, 2018
Application note Implementing An Ultra-Low-Power Keypad Interface With MSP430 MCUs (Rev. A) May 22, 2018
Application note Random Number Generation Using MSP430™ MCUs (Rev. A) May 16, 2018
Application note Wave Digital Filtering Using an MSP430 MCU (Rev. A) May 16, 2018
Application note Software Coding Techniques for MSP430™ MCUs (Rev. B) Mar 14, 2018
Application note Rotation Detection With the MSP430 Scan Interface (Rev. B) Jul 28, 2017
Application note MSP430 32-kHz Crystal Oscillators (Rev. D) PDF | HTML Jul 18, 2017
Application note Advanced Debugging Using the Enhanced Emulation Module (EEM) With CCS v6 (Rev. F) Sep 6, 2016
Application note MSP Code Protection Features PDF | HTML Dec 7, 2015
Application note Designing With MSP430™ MCUs and Segment LCDs (Rev. A) PDF | HTML Jul 20, 2015
Application note Migrating From MSP430FW42x Scan Interface to MSP430FR6x8x/FR5x8x ESI (Rev. A) Feb 6, 2015
User guide MSP430x4xx Family User's Guide (Rev. L) Apr 8, 2013
White paper Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D) Mar 28, 2012
Application note Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) Jan 12, 2012
Application note Tiny DCDC Converter Reference Design (Rev. A) Jun 14, 2010
Application note 1.8V – 5.5V Input, High-Efficiency DCDC Converter Reference Design for MSP430 (Rev. B) Jun 14, 2010

Design & development

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Evaluation board

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ALGO-3P-WRITENOW — Algocraft WriteNow! Programmer

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MSP430-SDK is a collection of resources that help users to write effective code for MSP430 microcontrollers (MCUs). These resources support ALL MSP430 microcontrollers. As one user mentioned, “It’s essentially everything developers need to become MSP430 microcontroller experts!”

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CCSTUDIO — CCStudio™ IDE

CCStudio™ IDE is part of TI's extensive CCStudio™ development ecosystem and is an integrated development environment for TI's microcontrollers, processors, wireless connectivity devices, and radar sensors. CCStudio IDE is available as desktop or cloud-based applications. The cloud version (...)

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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.

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IAR-KICKSTART — IAR Embedded Workbench

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MSP430-ACADEMY — MSP430™ academy

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TI-DEVELOPER-ZONE — Start embedded development on your desktop or in the cloud

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SAFERTOS® is a unique real time operating system designed for embedded processors. It is precertified to IEC 61508 SIL3 and ISO 26262 ASILD standards by TÜV SÜD. SAFERTOS® was crafted specifically for safety by WHIS' team of experts and is used globally in safety critical applications. WHIS and (...)

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Code example or demo

SLAC017 — MSP430x41x, MSP430F42x Code Examples

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MSP-DSPLIB — Digital Signal Processing (DSP) Library for MSP Microcontrollers

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MSP-GRLIB — MSP Graphics Library

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MSP-GANG-SOFTWARE — MSP-GANG Software

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MSP430-FLASHER — Command Line Programmer for MSP430™ and SimpleLink™ MSP432™ MCUs

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UNIFLASH — CCStudio UniFlash for most TI microcontrollers (MCUs) and mmWave sensors

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

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Package Pins CAD symbols, footprints & 3D models
LQFP (PM) 64 Ultra Librarian

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