16-MHz MCU with 32 KB FRAM, 12-bit high speed 8 MSPS sigma-delta ADC and integrated sensor AFE



Product details


Features Advanced sensing, DMA, Low-energy accelerator (LEA), MTIF (metering test interface), Real-Time Clock, Ultrasonic Sensing AFE, Direct drive Non-volatile memory (kB) 32 RAM (KB) 12 ADC 12-bit SAR ADC: channels (#) 8 GPIO pins (#) 44 I2C 2 SPI 6 UART 4 Comparator channels (#) 12 Timers - 16-bit 6 Bootloader (BSL) UART Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other MSP430 ultra-low-power MCUs

Package | Pins | Size

LQFP (PM) 64 100 mm² 10 x 10 VQFN (RGC) 64 81 mm² 9 x 9 open-in-new Find other MSP430 ultra-low-power MCUs


  • Best-in-class ultrasonic water and gas flow measurement with ultra-low power consumption
    • Water
      • ±12.5-ps differential time of flight (dToF) accuracy at low to high flow rates and across operating temperature
      • Achieves ±1% accuracy for a wide dynamic range of 500:1
      • Ability to measure a maximum flow rate of 8800 liters/hour (40 gallons/minute) on 25‑mm diameter pipe
      • Ability to detect a minimum flow rate of <1 liter/hour (0.005 gallons/minute)
      • High-precision time measurement resolution of <5 ps
      • Approximately 3-µA overall current consumption with 1 set of results per second
      • Ability to support a wide pipe sizes with 15‑mm to 1000-mm diameter
    • Gas
      • ±250-ps differential time of flight (dToF) accuracy at low to high flow rates and across operating temperature
      • Achieves ±1% accuracy up to 12000 liters/hour with a wide dynamic range of 200:1
      • Ability to measure a flow rate >25000 liters/hour
      • Ability to detect a minimum flow rate of <3 liters/hour
      • High-precision time measurement resolution of <100 ps
      • Approximately 20-µA overall current consumption with 1 set of results per second
  • Compliant to and exceeds ISO4064, OIML R49, EN 14236 and EN 1434 accuracy standards
  • Ability to directly interface standard ultrasonic sensors (up to 2.5 MHz)
  • Integrated analog front end – Ultrasonic Sensing Solution (USS_A) that includes
    • Programmable pulse generator (PPG) to generate multi-tone pulses at various frequencies
    • Integrated PHY with low-impedance output driver (4 Ω) to control input and output channels
    • High-performance high-speed 12-bit analog-to-digital converter (SDHS) with output data rates up to 8 Msps
    • Programmable gain amplifier (PGA) with –6.5 dB to 30.8 dB
    • High-performance PLL with output range of 68 to 80 MHz
  • Metering test interface (MTIF)
    • Pulse generator and pulse counter
    • Pulse rates up to 1024 pulses per second (p/s)
    • Count capacity up to 65535 (16 bit)
    • Operates in LPM3.5 with 200 nA (typical)
  • Low-energy accelerator (LEA)
    • Operation independent of CPU
    • 8KB of RAM shared with CPU
    • Efficient 256-point complex FFT: Up to 40x faster than Arm® Cortex®-M0+ core
  • Embedded microcontroller
    • 16-bit RISC architecture up to 16‑MHz clock
    • Wide supply voltage range: 1.8 V to 3.6 V (1)
  • Optimized ultra-low-power modes
    • Active mode: approximately 120 µA/MHz
    • Standby mode with real-time clock (RTC) (LPM3.5): 450 nA (2)
    • Shutdown (LPM4.5): 30 nA
  • Ferroelectric random access memory (FRAM)
    • Up to 64KB of nonvolatile memory
    • Ultra-low-power writes
    • Fast write at 125 ns per word (64KB in 4 ms)
    • Unified memory = program + data + storage in one single space
    • 1015 write cycle endurance
    • Radiation resistant and nonmagnetic
  • Intelligent digital peripherals
    • 32-bit hardware multiplier (MPY)
    • 6-channel internal DMA
    • RTC with calendar and alarm functions
    • 6 16-bit timers with up to 7 capture/compare registers each
    • 32-bit and 16-bit cyclic redundancy check (CRC)
  • High-performance analog
    • 12-channel analog comparator
    • 12-bit ADC featuring window comparator, internal reference, and sample-and-hold, with up to 8 external input channels
    • Integrated LCD driver with contrast control for up to 248 segments
  • Multifunction input/output ports
    • All pins support capacitive-touch capability with no need for external components
    • Accessible bit-, byte-, and word-wise (in pairs)
    • Edge-selectable wake from LPM on all ports
    • Programmable pullup and pulldown on all ports
  • Code security and encryption
    • 128- or 256-bit AES security encryption and decryption coprocessor
    • Random number seed for random number generation algorithms
    • IP encapsulation protects memory from external access
    • FRAM provides inherent security advantages
  • Enhanced serial communication
    • Up to 4 eUSCI_A serial communication ports
      • UART with automatic baud-rate detection
      • IrDA encode and decode
    • Up to 2 eUSCI_B serial communication ports
      • I2C with multiple-slave addressing
    • Hardware UART or I2C bootloader (BSL)
  • Flexible clock system
    • Fixed-frequency DCO with 10 selectable factory-trimmed frequencies
    • Low-power low-frequency internal clock source (VLO)
    • 32-kHz crystals (LFXT)
    • High-frequency crystals (HFXT)
  • Development tools and software
  • Device Comparison summarizes the available device variants and package options
  • For complete module descriptions, see the MSP430FR58xx, MSP430FR59xx, and MSP430FR6xx Family User’s Guide

(1)Minimum supply voltage is restricted by SVS levels, see the SVS Specifications)

(2)The RTC is clocked by a 3.7-pF crystal.

All trademarks are the property of their respective owners.

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The Texas Instruments MSP430FR6043 SoCs are part of the MSP430 Ultrasonic Sensing microcontroller (MCU) family and are powerful, highly integrated devices designed for ultrasonic water, heat, and gas meters. These MCUs offer an integrated Ultrasonic Sensing Solution (USS_A) module, which provides high accuracy for a wide range of flow rates. The USS_A helps provide ultra-low-power metering combined with lower system cost due to maximum integration and requires very few external components.

MSP430FR6043 devices implement high-speed ADC-based signal acquisition followed by optimized digital signal processing using the low-energy accelerator (LEA) to deliver a high-accuracy metering solution with ultra-low power optimum for battery-powered metering applications.

The USS_A module includes a programmable pulse generator (PPG) and a physical interface (PHY) with a low impedance output driver for optimum sensor excitation and accurate impendence matching to deliver best results for zero-flow drift (ZFD). The USS_A module also includes a programmable gain amplifier (PGA) and a high-speed 12-bit 8-Msps sigma-delta ADC (SDHS) for accurate signal acquisition from industry standard ultrasonic transducers.

The MSP430FR6043 MCUs also integrate other peripherals to improve system integration for metering. It has a metering test interface (MTIF) module to implement pulse generation to indicate flow measured by the meter. It also has an on-chip 8-mux LCD driver, real-time clock (RTC), 12-bit SAR ADC, analog comparator, advanced encryption (AES256), and cyclic redundancy check (CRC) modules.

MSP430FR604x and MSP430FR504x 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-TS430PN80C 80-pin target development board and EVM430-FR6043 ultrasonic gas flow meter EVM. TI also provides free software including the ultrasonic sensing design center, ultrasonic sensing software library, and MSP430Ware™ software.

The MSP430FR604x MCU family integrates TI’s FRAM (ferro-electric RAM) and a holistic ultra-low-power MSP 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 non-volatility of flash.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet MSP430FR604x, MSP430FR504x ultrasonic sensing MSP430™ microcontrollers for gas and water flow metering applications datasheet Jan. 18, 2019
* Errata MSP430FR5041 Device Erratasheet Jan. 21, 2019
* User guides MSP430FR58xx, MSP430FR59xx, and MSP430FR6xx Family User's Guide (Rev. P) Apr. 21, 2020
User guides MSP430 FRAM Devices Bootloader (BSL) User's Guide (Rev. Z) Mar. 23, 2020
Application notes MSP430 System-Level ESD Considerations (Rev. A) Jan. 13, 2020
Application notes MSP430 System ESD Troubleshooting Guide Dec. 13, 2019
White papers Ultrasonic sensing of gas flow white paper Jan. 24, 2019
Technical articles “Touching” the smart grid infrastructure space with capacitive sensing technology Mar. 31, 2016
Technical articles Don’t miss out on the top training videos of 2015 Dec. 16, 2015
Technical articles How fast is your 32-bit MCU? Jul. 15, 2015
Technical articles Lose power, not data with new FRAM microcontrollers May 20, 2015

Design & development

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

Hardware development

document-generic User guide
The EVM430-FR6043 evaluation kit is a development platform that can be used to evaluate the performance of the MSP430FR6043 for ultrasonic sensing applications (e.g. Smart Gas Meters). The MSP430FR6043 MCU is an ultra-low-power MCU that integrates an ultrasonic sensing analog front end (USS) for (...)
  • USB powered and provision for external power 
  • Connector available to interface with different transducer types
  • BoosterPack headers available to interface with external boards (I2C, SPI, UART, GPIO) and RF communication modules
  • On-board segmented LCD 
  • On-board eZ-FET emulation circuit to enable programming (...)
document-generic User guide

Note: This kit does not include MSP430™ microcontroller (MCU)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: MSP430FR6043.

The MSP-TS430PN80C microcontroller development board is a standalone ZIF socket (...)

  • Socket board to program & debug the 80-pin QFP package through the JTAG interface
  • Access to all device pins
  • Indicator LEDs and user switches
  • JTAG connector

Software development

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 (...)

  • 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
Fixed Point Math Library for MSP
MSP-IQMATHLIB The Texas Instruments® MSP IQmath and Qmath Libraries are a collection of highly optimized and high-precision mathematical functions for C programmers to seamlessly port a floating-point algorithm into fixed-point code on MSP430 and MSP432 devices. These routines are typically used in (...)
  • Optimized fixed point functions - reduce development time and enable developers to focus on optimizing application code
  • Up to 100x higher performance when executing common fixed point scalar math functions in CCS – this means the MSP microcontroller can remain in low power modes longer than (...)
Bootloader (BSL) for MSP low-power microcontrollers
MSPBSL The bootloader (BSL) on MSP430™ microcontrollers (MCUs) lets users communicate with embedded memory in the MSP MCUs during the prototyping phase, final production, and in service. This is done through standard interfaces such as UART, I2C, SPI, and USB. Both the programmable memory (...)
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 (...)

MSP MCU Programmer and Debugger
MSP-FET 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 (...)

  • 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
  • (...)
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 (...)

Reference designs

Ultrasonic sensing subsystem reference design for gas flow measurement
TIDM-02003 — This reference design helps designers develop an ultrasonic gas-metering subsystem using an integrated, ultrasonic sensing solution (USS) module, which provides superior metrology performance with low-power consumption and maximum integration. The design is based on the 64KB MSP430FR6043 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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LQFP (PM) 64 View options
VQFN (RGC) 64 View options

Ordering & quality

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