Polyphase Metering SoC with 7 Sigma-Delta ADCs, LCD, Real-Time Clock, 512KB Flash, 32KB RAM



Product details


Features LCD, Real-Time Clock Non-volatile memory (kB) 512 RAM (KB) 32 ADC 24-bit Sigma Delta ADC: channels (#) 7 GPIO pins (#) 90 I2C 2 SPI 6 UART 4 Comparator channels (#) 0 Timers - 16-bit 4 Bootloader (BSL) UART Special I/O Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other MSP430 ultra-low-power MCUs

Package | Pins | Size

LQFP (PEU) 128 352 mm² 22 x 16 LQFP (PZ) 100 256 mm² 16 x 16 open-in-new Find other MSP430 ultra-low-power MCUs


  • Accuracy < 0.1% Over 2000:1 Dynamic Range for Phase Current
  • Meets or Exceeds ANSI C12.20 and IEC 62053 Standards
  • Support for Multiple Sensors Such as Current Transformers, Rogowski Coils, or Shunts
  • Power Measurement for up to Three Phases Plus Neutral
  • Dedicated Pulse Output Pins for Active and Reactive Energy for Calibration
  • 4-Quadrant Measurement per Phase or Cumulative
  • Exact Phase-Angle Measurements
  • Digital Phase Correction for Current Transformers
  • Temperature-Compensated Energy Measurements
  • 40-Hz to 70-Hz Line Frequency Range Using Single Calibration
  • Flexible Power Supply Options With Automatic Switching
  • Display Operates at Very Low Power During AC Mains Failure: 3 µA in LPM3
  • LCD Driver With Contrast Control for up to 320 Segments
  • Password-Protected Real-Time Clock (RTC) With Tamper Detection, Crystal Offset Calibration, and Temperature Compensation
  • Integrated Security Modules to Support Anti‑Tamper
  • Multiple Communication Interfaces for Smart Meter Implementations
  • High-Performance Analog
    • Up to Seven Independent 24-Bit Sigma-Delta ADCs With Differential Inputs and Variable Gain
    • 10-Bit 200-ksps SAR ADC With Six External Channels and Two Internal Channels, Including Supply and Temperature Sensor Measurement
  • Highly Integrated Digital
    • Three-Channel Direct Memory Access (DMA) Controller
    • 16-Bit Cyclic Redundancy Check (CRC) Module
    • Four 16-Bit Timers With Nine Total Capture/Compare Registers
  • Six Enhanced Universal Serial Communication Interfaces (eUSCIs)
    • eUSCI_A0, eUSCI_A1, eUSCI_A2, and eUSCI_A3 Support UART, IrDA, and SPI
    • eUSCI_B0, eUSCI_B1 Support SPI and I2C
  • Ultra-Low Power Consumption
    • Multiple Low-Power Modes
      • Standby Mode (LPM3): 2.1 µA at 3 V,
        Wake up in Less Than 5 µs
      • RTC Mode (LPM3.5): 0.34 µA at 3 V
      • Shutdown Mode (LPM4.5): 0.18 µA at 3 V
  • CPU
    • High-Performance 25-MHz CPU With 32-Bit Multiplier
    • Wide Input Supply Voltage Range:
      3.6 V Down to 1.8 V
  • Memory
    • Up to 512KB of Single-Cycle Flash
    • Up to 32KB of RAM With Single-Cycle Access
  • Package Options
    • 128-Pin LQFP (PEU) Package With 90 I/O Pins
    • 100-Pin LQFP (PZ) Package With 62 I/O Pins
  • Development Tools (Also See Tools and Software)

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MSP430F67xx1A polyphase metering SoCs are powerful highly integrated solutions that offer high accuracy and low system cost with few external components. The MSP430F67xx1A microcontroller (MCU) family is part of the MSP430™ Metrology and Monitoring MCU portfolio targeting energy measurement and power monitoring applications including smart grid and building automation.

MSP430F67xx1A MCUs feature up to seven independent 24-bit sigma-delta ADCs that can provide better than 0.1% accuracy. MSP430F67xx1A devices integrate a high-performance MSP430 CPU with a 32-bit multiplier to perform all metrology calculations. Family members include up to 512KB of flash, 32KB of RAM, and an LCD controller with support for up to 320 segments.

The ultra-low power consumption of the MSP430F67xx1A enables the system power supply to be minimized to reduce overall cost. Low standby power requires minimal energy storage, and critical data can be retained longer in case of a mains power failure.

The MSP430F67xx1A MCU family is supported by an extensive software and hardware ecosystem. The Texas Instruments Energy Measurement Design Center (EMDC) can simplify development and accelerate designs by quickly configuring the Energy Measurement software library, automatically generating code, performing calibration, and viewing results. MSP430F67xx1A MCUs execute the Energy Measurement software library, which calculates all relevant energy and power results. Development kits include the EVM430-F6779 three-phase electricity meter evaluation module and the MSP-TS430PEU128 128-pin target development board. Industry standard development tools and hardware platforms are available to speed development of meters that meet all of the ANSI and IEC standards globally.

For complete module descriptions, see the MSP430F5xx and MSP430F6xx Family User’s Guide.

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Technical documentation

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Type Title Date
* Datasheet MSP430F677x1A, MSP430F676x1A, MSP430F674x1A Polyphase Metering SoCs datasheet (Rev. A) Sep. 28, 2018
* Errata MSP430F67791A Device Erratasheet (Rev. U) Apr. 24, 2019
* User guides MSP430x5xx and MSP430x6xx Family User's Guide (Rev. Q) Aug. 17, 2018
Application notes Differences Between MSP430F67xx and MSP430F67xxA Devices (Rev. A) Jan. 13, 2020
Application notes MSP430 System-Level ESD Considerations (Rev. A) Jan. 13, 2020
Application notes MSP430 System ESD Troubleshooting Guide Dec. 13, 2019
Application notes ESD Diode Current Specification (Rev. A) Jul. 10, 2019
Technical articles An open-and-shut case, part 2: advantages of inductive-based case tamper detection in smart meters Nov. 29, 2018
Technical articles An open-and-shut case, part 1: limitations of mechanical case tamper detection in smart meters Nov. 15, 2018
Application notes MSP430 32-kHz Crystal Oscillators (Rev. D) Jul. 18, 2017
Technical articles Quantifying harmonic distortion: Estimating THD without performing a full FFT operation Sep. 26, 2016
Application notes How delta-sigma ADCs work, Part 1 (Rev. A) Sep. 19, 2016
Technical articles Quantifying harmonic distortion: Options for calculating THD Aug. 19, 2016
Application notes MSP Code Protection Features Dec. 07, 2015
Application notes Implementation of a Three-Phase Electronic Watt-Hour Meter Using MSP430F677x(A) (Rev. G) Aug. 05, 2015
Application notes Designing With MSP430™ MCUs and Segment LCDs (Rev. A) Jul. 20, 2015
Application notes MSP430 Advanced Power Optimizations: ULP Advisor SW and EnergyTrace Technology Jun. 09, 2014
Application notes Using TI’s DLMS COSEM Library Nov. 12, 2013
Application notes A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B) Oct. 09, 2011
Application notes Design of Differential Filters for High-Speed Signal Chains (Rev. B) Apr. 30, 2010

Design & development

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

Hardware development


This EVM430-F6779 is a three-phase electricity meter evaluation module based on the MSP430F6779 device. The E-meter has inputs for three voltages and three currents, as well as an additional connection to setup anti-tampering. It allows a customer to test the new (...)

  • Run real-time electricity metering applications
  • Metrology software provided
  • Connects to any test system or AC voltage
  • Capacitive and isolated power supplies present
  • Easy viewing of results and calibration via RS-232
  • 160 segment LCD display
  • RF connectors for AMR/AMI support
  • 32kHz RTC support (header (...)
document-generic User guide

The MSP-TS430PEU128 is a standalone 128-pin ZIF socket target board used to program and debug the MSP430 MCU in-system through the JTAG interface or the Spy Bi-Wire (2-wire JTAG) protocol.

Device Support: The MSP-TS430PEU128 development board supports MSP430F677x, MSP430F676x, MSP430F674x (...)

  • Development board (MSP-TS430PEU128) with a 128-pin ZIF socket fitting MSP430 derivatives in 128-pin QFP (PEU) packages includes an LED indicator, JTAG adapter, and header pin-outs for prototyping
  • Supports all debugging interfaces using a standard 14-pin JTAG header such as the MSP-FET430UIF.

The Energy Measurement Design Center is a rapid development tool that enables energy measurement using TI MSP430i20xx and MSP430F67xx flash-based microcontrollers (MCUs). It includes a graphical user interface (GUI), documentation, software library and examples that can simplify development and (...)

  • Supported measurements:
    • Voltage and Current
      • RMS
      • Peak
    • Power and Energy
      • Active
      • Reactive
      • Apparent
    • Power Factor
    • Frequency
  • Supported current sensors:
    • Shunt
    • Current transformer (CT)
    • Rogowski coil (RC)
  • View estimated CPU bandwidth (library only) for supported system configurations
  • Generate source code projects for Code (...)

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
Digital Signal Processing (DSP) Library for MSP430 Microcontrollers
MSP-DSPLIB — The Texas Instruments MSP430™ Digital Signal Processing library is a set of highly optimized functions to perform many common signal processing operations on fixed-point numbers for MSP430 microcontrollers. This function set is typically used in applications where processing-intensive (...)
MSP Graphics Library
MSP-GRLIB The MSP Graphics Library is a royalty-free set of graphics primitives for creating graphical user interfaces on MSP430 and MSP432 microcontroller-based boards that have a graphical display. The graphical library consists of two building layers of functionality: the display driver layer, specific to (...)
  • Free license and royalty-free use
  • Simplify and accelerate developmen tof applications
  • Easy-to-maintain code
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 Below are the steps needed in order to both understand and use the MSPBSL effectively across the MSP portfolio. For the most up to date information on what features the BSL on your device supports or which interface methods are needed to communicate with the BSL, please see “TABLE 1. Overview (...)
MSP Driver Library
MSPDRIVERLIB Driver Library's abstracted API keeps you above the bits and bytes of the MSP430 and MSP432 hardware by providing easy-to-use function calls. Thorough documentation is delivered through a helpful API Guide, which includes details on each function call and the recognized parameters. Developers can (...)
  • Software APIs that abstract away the details of the device’s hardware registers
  • Licensed BSD
  • Examples showing how to use DriverLib APIs in your project
  • Complete API guide available in PDF and html formats
  • Integration with CCS and TI Resource Explorer when using MSPWare
Floating Point Math Library for MSP430
MSPMATHLIB Continuing to innovate in the low power and low cost microcontroller space, TI brings you MSPMATHLIB. Leveraging the intelligent peripherals of our devices, this floating point math library of scalar functions brings you up to 26x better performance.

Mathlib is easy to integrate into your designs. (...)

  • Up to 26x higher performance when executing floating point scalar math functions
  • Remains in low power modes longer due to the increased performance
  • Free and easy to use –  now integrated in CCS and IAR
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 (...)

EnergyTrace Technology
ENERGYTRACE 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 (...)

  • Current measurement is enabled for all MSP430 MCUs, MSP432 MCUs and connectivity devices
  • Tracing of CPU states is available on selected MSP430 MCUs, MSP432 MCUs, CC13x2 wireless MCUs and CC26x2 wireless MCUs 
  • Tracing of peripheral states is also available on selected MSP430 MCUs, CC13x2 (...)
GCC - Open Source Compiler for MSP Microcontrollers
MSP430-GCC-OPENSOURCE MSP430™ and MSP432™ GCC open source packages are complete debugger and open source C/C++ compiler toolchains for building and debugging embedded applications based on MSP430 and MSP432 microcontrollers. These free GCC compilers support all MSP430 and MSP432 devices without code size limitations. In (...)
  • Available standalone or integrated within Code Composer Studio™
  • No Code Size Limitation
  • Free and Open-source
ULP (Ultra-Low Power) Advisor
ULPADVISOR ULP (Ultra-Low Power) Advisor is a tool for guiding developers to write more efficient code to fully utilize the unique ultra-low power features of MSP and MSP432 microcontrollers. Aimed at both experienced and new microcontroller developers, ULP Advisor checks your code against a thorough ULP (...)
  • Seamless tool that provides easy-to-understand remarks for creating power-efficient code for all MSP devices
  • Checks your code against a thorough ULP checklist
  • Built in to Code Composer Studio and also available as a standalone executable
  • Supports all MSP devices
  • Wiki-based social online community for (...)
IAR Embedded Workbench
Provided by IAR Systems IAR Embedded Workbench for MSP430 (EW430)
IAR Embedded Workbench for MSP430 is a complete debugger and C/C++ compiler toolchain for building and debugging embedded applications based on MSP430 microcontrollers. The Debugger is a fully integrated debugger for source and disassembly level debugging (...)
MSP MCU Programmer and Debugger
MSP-FET To get started developing:
Step 1: Buy the MSP-FET 
Step 2: Refer to the debuggers user’s guide and hardware user’s guide.
Step 3: Refer to debugging video

**The second generation of the MSP-FET is supported in the IDEs since Code Composer Studio™ v7.0, IAR EW430 v7.1 and IAR EWAR v8.10. For use (...)

  • 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
  • (...)
MSP-GANG Production Programmer
MSP-GANG The MSP Gang Programmer is a MSP430/MSP432 device programmer that can program up to eight identical MSP430/MSP432 Flash or FRAM devices at the same time. The MSP Gang Programmer connects to a host PC using a standard RS-232 or USB connection and provides flexible programming options that allow the (...)
  • Quickly and reliably program Flash or FRAM-based MSP devices via RS-232 or USB interface
  • Several programming modes:
    • Interactive Mode – Programming while connected to PC using the MSP GANG Programmer GUI
    • Program from Image – An image can be stored, which contains configuration options and code (...)
MSP Flasher - Command Line Programmer
MSP430-FLASHER MSP Flasher is an open-source, shell-based interface for programming MSP430™ microcontrollers (MCUs) and SimpleLink™ MSP432™ MCUs  through a MSP Debug Stack and provides the most common functions on the command line. MSP Flasher can be used to download binary files (.txt/.hex) directly to the MSP (...)
SLAC648F.ZIP (243 KB)

Reference designs

Capacitor Bank Control and HMI Subsystem Reference Design for Automatic Power Factor Controller
TIDA-00737 The TIDA-00737 TI design demonstrates working of various functional blocks of an Automatic Power Factor Controller used in MV/LV electrical distribution including – Accurate measurement and computation of voltages, currents, power and power factor; Display of measured parameters using 4 digit (...)
document-generic Schematic document-generic User guide
Total Harmonic Distortion Measurement For Energy Monitoring Reference Design
TIDM-THDREADING The TIDM-THDREADING reference design implements power quality analysis in a three-phase energy measurement system. Power quality monitoring and analysis has an increasingly large role in improving the reliability of the electricity grid. The design measures Total Harmonic Distortion(THD), monitors (...)
document-generic Schematic document-generic User guide
Battery Management and Auxiliary Power Supply Options for E-Meters
TIDM-AUX-MODULE Smart electric meters are required to maintain normal operation for a short period of time after the electric grid fails. This reference design details methods by which designers can meet this requirement when using an advanced, smart meter MCU. Designers can use this design to evaluate options for (...)
document-generic Schematic document-generic User guide
Implementation of a 3-Phase Rogowski Coil Based Watt Hour Meter Reference Design
TIDM-3PHMETER-ROGOWSKI This design, implements a highly integrated single chip electricity metering solution, with support for Rogowski Coil current sensors. Hardware and software design files are provided to enable calculation of various parameters for multi-phase energy measurement, such as RMS current & voltage (...)
document-generic Schematic document-generic User guide
Three-Phase Metrology With Enhanced ESD Protection and Tamper Detection Reference Design
TIDM-3PHMTR-TAMP-ESD This design implements an ANSI/IEC Class 0.2 three-phase energy meter with enhanced ESD protection. The design also features tamper detection to limit the feasibility of energy theft and communications through ZigBee™ connectivity.  The e-meter SoC is used to perform all metrology (...)
document-generic Schematic document-generic User guide
Design files
Case Tamper Detection Reference Design Using Inductive Sensing
TIDA-01377 — The physical case surrounding a smart meter is the first line of defense against tampering. Smart meter designs must incorporate some way to detect when the meter case is opened in order to alert service providers to a possible tamper attack.  This reference design implements a new method for (...)
document-generic Schematic document-generic User guide
Magnetic Tamper Detection Using Low-Power Hall Effect Sensors Reference Design
TIDA-00839 Magnetic tampering can paralyze any transformer in an energy measurement system, which may potentially lead to the system being unable to be powered properly or unable to correctly register the energy consumed by a load.  This design implements a Class 0.2  three-phase energy measurement (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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LQFP (PEU) 128 View options
LQFP (PZ) 100 View options

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