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MSP430F67641A

MSP430F67641A Series

Low-cost polyphase metering SoC with 3 Sigma-Delta ADCs, 10-bit SAR ADC, LCD, 128KB Flash, 8KB RAM

Manufacturer: Texas Instruments

Catalog

Low-cost polyphase metering SoC with 3 Sigma-Delta ADCs, 10-bit SAR ADC, LCD, 128KB Flash, 8KB RAM

Key Features

Accuracy <0.5% Over 2000:1 Dynamic Range for Phase CurrentMeets or Exceeds ANSI C12.20 and IEC 63053 StandardsSupport for Multiple Sensors Such as Current Transformers, Rogowski Coils, or ShuntsPower Measurement for up to Three PhasesFour-Quadrant Measurement per Phase or CumulativeExact Phase-Angle MeasurementsDigital Phase Correction for Current Transformers40-Hz to 70-Hz Line Frequency Range Using Single CalibrationFlexible Power Supply Options With Automatic SwitchingDisplay Operates at Very Low Power During AC Mains Failure: 3 µA in LPM3Real-Time Clock (RTC) Module Operating from Dedicated Power Supply (AUXVCC3) Offering Integrated Offset and Temperature Calibration FeaturesMultiple Communication Interfaces for Smart Meter ImplementationsHigh-Performance 25-MHz CPU With 32-Bit MultiplierUp to 128KB of Flash With Single-Cycle ExecutionUp to 8KB of RAM With Single-Cycle AccessUp to Three Independent 24-Bit Sigma-Delta Analog-to-Digital Converters (ADCs) With Differential Inputs and Variable GainSystem ADC:10-Bit 200-ksps 6-Channel Plus Temperature Sensor and Supply MeasurementWide Input Supply-Voltage Range:1.8 V to 3.6 VUltra-Low Power Consumption During Energy Measurement3.0 mW at 10-MHz Operation (3.0 V)Multiple Low-Power ModesStandby 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 SegmentsPassword-Protected RTC With Crystal Offset Calibration and Temperature CompensationFour Communications PortsConfigurable Among Four UART, Three SPI, and One I2C InterfacesFour 16-Bit Timers With Nine Capture/Compare Registers100-Pin LQFP (PZ) Package With 72 I/O Pins80-Pin LQFP (PN) Package With 52 I/O PinsIndustrial Temperature Range of –40°C to 85°CDevelopment Tool (Also See Tools and Software)Polyphase Electric Meter with MSP430F67641 SoC (EVM430-F67641)Accuracy <0.5% Over 2000:1 Dynamic Range for Phase CurrentMeets or Exceeds ANSI C12.20 and IEC 63053 StandardsSupport for Multiple Sensors Such as Current Transformers, Rogowski Coils, or ShuntsPower Measurement for up to Three PhasesFour-Quadrant Measurement per Phase or CumulativeExact Phase-Angle MeasurementsDigital Phase Correction for Current Transformers40-Hz to 70-Hz Line Frequency Range Using Single CalibrationFlexible Power Supply Options With Automatic SwitchingDisplay Operates at Very Low Power During AC Mains Failure: 3 µA in LPM3Real-Time Clock (RTC) Module Operating from Dedicated Power Supply (AUXVCC3) Offering Integrated Offset and Temperature Calibration FeaturesMultiple Communication Interfaces for Smart Meter ImplementationsHigh-Performance 25-MHz CPU With 32-Bit MultiplierUp to 128KB of Flash With Single-Cycle ExecutionUp to 8KB of RAM With Single-Cycle AccessUp to Three Independent 24-Bit Sigma-Delta Analog-to-Digital Converters (ADCs) With Differential Inputs and Variable GainSystem ADC:10-Bit 200-ksps 6-Channel Plus Temperature Sensor and Supply MeasurementWide Input Supply-Voltage Range:1.8 V to 3.6 VUltra-Low Power Consumption During Energy Measurement3.0 mW at 10-MHz Operation (3.0 V)Multiple Low-Power ModesStandby 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 SegmentsPassword-Protected RTC With Crystal Offset Calibration and Temperature CompensationFour Communications PortsConfigurable Among Four UART, Three SPI, and One I2C InterfacesFour 16-Bit Timers With Nine Capture/Compare Registers100-Pin LQFP (PZ) Package With 72 I/O Pins80-Pin LQFP (PN) Package With 52 I/O PinsIndustrial Temperature Range of –40°C to 85°CDevelopment Tool (Also See Tools and Software)Polyphase Electric Meter with MSP430F67641 SoC (EVM430-F67641)

Description

AI
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 TI’s 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 theMSP430F5xx and MSP430F6xx Family User’s Guide. 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 TI’s 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 theMSP430F5xx and MSP430F6xx Family User’s Guide.