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MSP430F67791A, MSP430F67781A, MSP430F67771A, MSP430F67761A, MSP430F67751A MSP430F67691A, MSP430F67681A, MSP430F67671A, MSP430F67661A, MSP430F67651A MSP430F67491A, MSP430F67481A, MSP430F67471A, MSP430F67461A, MSP430F67451A
SLAS983A – MAY 2014 – REVISED SEPTEMBER 2018
MSP430F677x1A, MSP430F676x1A, MSP430F674x1A Polyphase Metering SoCs
1 Device Overview
1.1 Features
1
• 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
1.2 Applications
• 3-Phase Electronic Watt-Hour Meters
• Utility Metering
• 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) – Energy Measurement Design Center for MSP430 MCUs with 24-Bit Sigma-Delta ADCs (MSP-EM-DESIGN-CENTER) – Three-Phase Electronic Watt-Hour EVM for Metering (EVM430-F6779) – Target Development Board (MSP‑TS430PEU128)
• Energy Monitoring
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
MSP430F67791A, MSP430F67781A, MSP430F67771A, MSP430F67761A, MSP430F67751A MSP430F67691A, MSP430F67681A, MSP430F67671A, MSP430F67661A, MSP430F67651A MSP430F67491A, MSP430F67481A, MSP430F67471A, MSP430F67461A, MSP430F67451A
SLAS983A – MAY 2014 – REVISED SEPTEMBER 2018
www.ti.com
1.3 Description
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 a.