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MSP430F67641A, MSP430F67621A
SLASE50 –FEBRUARY 2015
MSP430F676x1A Polyphase Metering SoCs
1 Device Overview
1.1 Features
1
• Accuracy <0.5% Over 2000:1 Dynamic Range for • Up to Three Independent 24-Bit Sigma-Delta
Phase Current Analog-to-Digital Converters (ADCs) With
Differential Inputs and Variable Gain
• Meets or Exceeds ANSI C12.20 and IEC 63053
Standards • System ADC:
10-Bit, 200-ksps, Six Channels Plus Temperature
• Support for Multiple Sensors Such as Current
Sensor and Supply Measurement
Transformers, Rogowski Coils, or Shunts
• Wide Input Supply-Voltage Range:
• Power Measurement for up to Three Phases
1.8 V to 3.6 V
• Four-Quadrant Measurement per Phase or
• Ultra-Low Power Consumption During Energy
Cumulative
Measurement
• Exact Phase-Angle Measurements
– 3.0 mW at 10-MHz Operation (3.0 V)
• Digital Phase Correction for Current Transformers
• Multiple Low-Power Modes
• 40-Hz to 70-Hz Line Frequency Range Using
– Standby Mode (LPM3): 2.5 µA at 3 V, Wakeup
Single Calibration
in 3 µs (Typical)
• Flexible Power Supply Options With Automatic
– RTC Mode (LPM3.5): 1.24 µA at 3 V (Typical)
Switching
– Shutdown Mode (LPM4.5): 0.78 µA at 3 V
• Display Operates at Very Low Power During AC
(Typical)
Mains Failure: 3 µA in LPM3
• LCD Driver With Contrast Control for up to 320
• Real-Time Clock (RTC) Module Operating from
Segments
Dedicated Power Supply (AUXVCC3) Offering
Integrated Offset and Temperature Calibration • Password-Protected RTC With Crystal Offset
Features. Calibration and Temperature Compensation
• Multiple Communication Interfaces for Smart Meter • Four Communications Ports
Implementations
– Configurable Among Four UART, Three SPI,
• High-Performance 25-MHz CPU With 32-Bit and One I
2
C Interfaces
Multiplier
• Four 16-Bit Timers With Nine Capture/Compare
• Up to 128KB of Flash With Single-Cycle Execution Registers
• Up to 8KB of RAM With Single-Cycle Access • 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
1.2 Applications
• Three-Phase Electronic Watt-Hour Meters • Energy Monitoring
• Utility Metering
1.3 Description
The Texas Instruments MSP430F676x1A polyphase metering SoCs are powerful highly integrated
solutions for revenue meters that offer accuracy and low system cost with few external components. The
F676x1A 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 F676x1A 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 F676x1A means that the system power
supply can be minimized to reduce overall cost. Lowest standby power means that backup energy storage
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.
Verzeichnis
- ・ Konfiguration des Pinbelegungsdiagramms on Seite 6 Seite 7 Seite 87 Seite 88 Seite 89
- ・ Abmessungen des Paketumrisses on Seite 5 Seite 141 Seite 143 Seite 144
- ・ Markierungsinformationen on Seite 138 Seite 141 Seite 142
- ・ Blockdiagramm on Seite 8 Seite 13 Seite 68 Seite 69 Seite 87
- ・ Technische Daten on Seite 31 Seite 32 Seite 33 Seite 34 Seite 35
- ・ Anwendungsbereich on Seite 1 Seite 135 Seite 147
- ・ Elektrische Spezifikation on Seite 57
