MSP430F67621A - Texas Instruments

MSP430F67621A Polyphase Metering SoCs

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 wi.

Features

1
• 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 (R.