MSP430F67621A
Low-cost polyphase metering SoC with 3 Sigma-Delta ADCs, 10-bit SAR ADC, LCD, 64KB Flash, 4KB RAM
MSP430F67621A
- Accuracy <0.5% Over 2000:1 Dynamic Range for Phase Current
- Meets or Exceeds ANSI C12.20 and IEC 63053 Standards
- Support for Multiple Sensors Such as Current Transformers, Rogowski Coils, or Shunts
- Power Measurement for up to Three Phases
- Four-Quadrant Measurement per Phase or Cumulative
- Exact Phase-Angle Measurements
- Digital Phase Correction for Current Transformers
- 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
- Real-Time Clock (RTC) Module Operating from Dedicated Power Supply (AUXVCC3) Offering Integrated Offset and Temperature Calibration Features
- Multiple Communication Interfaces for Smart Meter Implementations
- High-Performance 25-MHz CPU With 32-Bit Multiplier
- Up to 128KB of Flash With Single-Cycle Execution
- Up to 8KB of RAM With Single-Cycle Access
- Up to Three Independent 24-Bit Sigma-Delta Analog-to-Digital Converters (ADCs) With Differential Inputs and Variable Gain
- System ADC:
10-Bit 200-ksps 6-Channel Plus Temperature Sensor and Supply Measurement - Wide Input Supply-Voltage Range:
1.8 V to 3.6 V - Ultra-Low Power Consumption During Energy Measurement
- 3.0 mW at 10-MHz Operation (3.0 V)
- Multiple Low-Power Modes
- Standby Mode (LPM3): 2.5 µA at 3 V, Wake up in 3 µs (Typical)
- RTC Mode (LPM3.5): 1.24 µA at 3 V (Typical)
- Shutdown Mode (LPM4.5): 0.78 µA at 3 V (Typical)
- LCD Driver With Contrast Control for up to 320 Segments
- Password-Protected RTC With Crystal Offset Calibration and Temperature Compensation
- Four Communications Ports
- Configurable Among Four UART, Three SPI, and One I2C Interfaces
- Four 16-Bit Timers With Nine Capture/Compare Registers
- 100-Pin LQFP (PZ) Package With 72 I/O Pins
- 80-Pin LQFP (PN) Package With 52 I/O Pins
- Industrial Temperature Range of –40°C to 85°C
- Development Tool (Also See Tools and Software)
The TI MSP430F676x1A polyphase metering SoCs are powerful highly integrated solutions for revenue meters that offer accuracy and low system cost with few external components. The MSP430F676x1A uses the low-power MSP430™ CPU with a 32-bit multiplier to perform all energy calculations, metering applications such as tariff rate management, and communications with AMR or AMI modules.
The MSP430F676x1A features TIs 24-bit sigma-delta converter technology, which provides better than 0.5% accuracy. Family members include up to 128KB of flash and 8KB of RAM and an LCD controller with support for up to 320 segments. The ultra-low-power nature of the MSP430F676x1A means that the system power supply can be minimized to reduce overall cost. Lowest standby power means that backup energy storage can be minimized, and critical data retained longer in case of a mains power failure.
The MSP430F676x1A family executes the TI energy measurement software library, which calculates all relevant energy and power results. The energy measurement software library is available with the MSP430F676x1A at no cost. 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 Users Guide.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
EVM430-F6736 — EVM430-F6736 - MSP430F6736 EVM for Metering
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 (...)
MSP-DSPLIB — Digital Signal Processing (DSP) Library for MSP Microcontrollers
The TI MSP430™ Digital Signal Processing library is a set of optimized functions to perform common signal processing operations for MSP430 microcontrollers. These functions are used in applications where processing-intensive transforms are done in real-time for minimal energy and with very (...)
Supported products & hardware
Products
MSP430 microcontrollers
Other interfaces
MSP-GRLIB — MSP Graphics Library
The MSP Graphics Library is a royalty-free set of graphics primitives for displaying images or creating graphical user interfaces (GUIs) on MSP430 and MSP432 microcontroller-based boards that use a graphical display. The graphics library consists of two functional layers: 1) the display driver (...)
Supported products & hardware
Products
MSP430 microcontrollers
Other interfaces
Sub-1 GHz wireless MCUs
Other wireless products
TI-DEVELOPER-ZONE — Start embedded development on your desktop or in the cloud
Supported products & hardware
Products
Arm Cortex-M0+ MCUs
MSP430 microcontrollers
Wi-Fi products
Arm Cortex-R MCUs
Arm-based processors
C2000 real-time microcontrollers
Low-power 2.4-GHz products
Sub-1 GHz wireless MCUs
Hardware development
Evaluation board
CCSTUDIO — Code Composer Studio™ integrated development environment (IDE)
Code Composer Studio is an integrated development environment (IDE) for TI's microcontrollers and processors. It comprises a suite of tools used to develop and debug embedded applications. Code Composer Studio is available for download across Windows®, Linux® and macOS® desktops. It can also (...)
Supported products & hardware
This design resource supports most products in these categories.
Check the product details page to verify support.
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parametric-filter Digital signal processors (DSPs) -
parametric-filter Arm-based processors -
parametric-filter MSP430 microcontrollers -
parametric-filter C2000 real-time microcontrollers -
parametric-filter Arm-based microcontrollers -
parametric-filter Signal conditioners -
parametric-filter mmWave radar sensors -
parametric-filter Zigbee products -
parametric-filter Wi-Fi products -
parametric-filter Thread products -
parametric-filter Other wireless technologies -
parametric-filter Sub-1 GHz products -
parametric-filter Multi-protocol products -
parametric-filter Bluetooth products -
parametric-filter Digital power isolated controllers
CCSTUDIO-THEIA — Code Composer Studio™ integrated development environment (IDE) Theia
Code Composer Studio is an integrated development environment (IDE) for TI's microcontrollers and processors. It comprises a suite of tools used to develop and debug embedded applications. Code Composer Studio is available for download across Windows®, Linux® and macOS® desktops. It can also (...)