多相计量SoC POLYPHASE METERING SoCs
* Accuracy * 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 * Four-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 With Crystal Offset Calibration and Temperature Compensation * Integrated Security Modules to Support Anti-Tamper and Encryption * Multiple Communication Interfaces for Smart Meter Implementations * High-Performance 25-MHz CPU With 32-Bit Multiplier * Wide Input Supply Voltage Range: 3.6 V Down to 1.8 V * Ultra-Low-Power Consumption During Energy Measurement * 2.9 mW at 10-MHz Operation 3 V * 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 * Up to 512KB of Single-Cycle Flash * Up to 32KB of RAM With Single-Cycle Access * Up to Seven Independent 24-Bit Sigma-Delta ADCs With Differential Inputs and Variable Gain * System 10-Bit 200-ksps ADC * Six Channels Plus Supply and Temperature Sensor Measurement * Integrated Hardware AES-128 Module for Encryption * Six Enhanced Communications Ports * Configurable Among Four UART, Six SPI, and Two I²C Interfaces * Four 16-Bit Timers With Nine Total Capture/Compare Registers * 128-Pin LQFP PEU Package With 90 I/O Pins * 100-Pin LQFP PZ Package With 62 I/O Pins * Industrial Temperature Range of –40°C to 85°C * 3-Phase Electronic Watt-Hour Meter Development Tools * EVM430-F6779 With SLAA577 App Note * MSP430™ Energy Library