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



Product details


Non-volatile memory (kB) 32 RAM (KB) 12 ADC 12-bit SAR GPIO pins (#) 57 Features Advanced sensing, DMA, LCD, Low-energy accelerator (LEA), MTIF (metering test interface), Real-time clock, Ultrasonic sensing AFE, Direct drive UART 4 USB No Number of I2Cs 2 SPI 6 Comparator channels (#) 12 open-in-new Find other MSP430 microcontrollers

Package | Pins | Size

LQFP (PN) 80 196 mm² 14 x 14 open-in-new Find other MSP430 microcontrollers


  • 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

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

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

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The Texas Instruments MSP430FR604x and MSP430FR504x 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.

MSP430FR604x and MSP430FR504x 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 MSP430FR604x and MSP430FR504x 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 (MSP430FR604x only), a real-time clock (RTC), a 12-bit SAR ADC, an analog comparator, an advanced encryption (AES256) module, and a cyclic redundancy check (CRC) module.

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 and MSP430FR504x MCU family integrates TI’s FRAM (ferroelectric 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 nonvolatility of flash.

For complete module descriptions, see the MSP430FR58xx, MSP430FR59xx, and MSP430FR6xx Family User’s Guide .

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Technical documentation

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Type Title Date
* Data sheet MSP430FR604x, MSP430FR504x Ultrasonic Sensing MSP430™ Microcontrollers for Gas and Water Flow Metering Applications datasheet (Rev. A) Dec. 01, 2020
* Errata MSP430FR6041 Device Erratasheet (Rev. A) May 24, 2021
* User guide MSP430FR58xx, MSP430FR59xx, and MSP430FR6xx Family User's Guide (Rev. P) Apr. 21, 2020
Application note Waveform Capture Based Ultrasonic Sensing Water Flow Metering Technology (Rev. A) Jul. 15, 2021
Application note MSP430 System-Level ESD Considerations (Rev. B) Jul. 14, 2021
User guide MSP430 MCUs Development Guide Book (Rev. A) May 13, 2021
Technical article A world of possibilities: 5 ways to use MSP430™︎ MCUs in your design Apr. 29, 2021
User guide Low-Energy Accelerator (LEA) Common Parameter Blocks Reference Guide Mar. 17, 2021
User guide Low-Energy Accelerator (LEA) Registers Reference Guide Mar. 17, 2021
User guide Low-Energy Accelerator (LEA) Commands Reference Guide Mar. 11, 2021
User guide MSP430 FRAM Devices Bootloader (BSL) User's Guide (Rev. AA) Feb. 19, 2021
Application note Ultrasonic Applications With MSP430 MCUs Nov. 20, 2020
Application note Gas Meter Design Guide Oct. 28, 2020
Application note Oxygen Concentration Sensing Oct. 14, 2020
Application note Liquid Concentration Sensing Oct. 09, 2020
Application note USS Water Flow Rate Calibration Oct. 09, 2020
Application note High-Resolution Anemometers Oct. 02, 2020
Application note Ultrasonic Surface Sensing Sep. 25, 2020
Application note Ultrasonic Leak Detection Sep. 23, 2020
Application note High Resolution Ultrasonic Liquid Level Sensing (Rev. A) Sep. 01, 2020
Application note Answers to Common Sigma-Delta ADC Questions on MSP MCUs Aug. 11, 2020
Application note MSP430 System ESD Troubleshooting Guide Dec. 13, 2019
White paper Smart Flow Meters using MSP430™ Ultrasonic Sensing Microcontrollers Oct. 17, 2019
Application note FAQ on ultrasonic sensing technology for flow metering with MSP430FR604x MCUs (Rev. A) Jan. 30, 2019
White paper Ultrasonic sensing of gas flow white paper Jan. 24, 2019

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
document-generic User guide

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
  • (...)

Software development

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 (...)

Design tools & simulation

MSP Third party search tool
MSP-3P-SEARCH 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 (...)

  • Supports many TI MSP devices including general purpose and advanced sensing MCUs
  • Search by type of product, TI devices supported, or country
  • Access links and contacts for quick engagement
  • Third-party companies located around the world

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

CAD/CAE symbols

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LQFP (PN) 80 View options

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