MSP430F6779IPZR

TI MSP430F677x series multi-phase metering SoCs are powerful and highly integrated solutions for revenue meters. These solutions provide accurate metering and low system cost with few external components. The F677x series devices use a low-power MSP430 CPU with a 32-bit multiplier to perform all energy calculations, metering applications such as rate management, and communication with AMR and AMI modules. The F677x devices use TI's 24-bit Σ-Δ converter technology with an accuracy better than 0.1%. The family members include up to 512KB of single-cycle flash, 32KB of RAM supporting single-cycle access, and an LCD controller with up to 320-segment contrast control. The ultra-low power consumption attributes of the F677x devices mean that the system power supply can be minimized to reduce the overall cost. The lowest standby power means that the backup energy storage can be minimized, and critical data can be retained for a longer time in the event of a main power failure. The F677x series devices execute the TI energy measurement software library, which calculates all relevant energy and power results. The energy measurement software library is provided free of charge with the F677x devices. Industrial standard development tools and software platforms are also provided to accelerate the development of meters that comply with all ANSI and IEC standards globally.

Applications

• Three-phase electronic meters
• Utility meter metering
• Energy monitoring

Key features

• Phase current accuracy <0.1% over a dynamic range of more than 2000:1
• Complies with or exceeds ANSI C12.20 and IEC 62053 standards
• Supports multiple sensors such as current transformers, Rogowski coils, or shunts
• Power management for up to 3 phases plus neutral phase
• Dedicated pulse output pins for active and reactive energy for calibration
• Four-quadrant measurement per phase or accumulated phases
• Accurate phase angle measurement
• Digital phase correction for current transformers
• Temperature-compensated energy measurement
• 40Hz to 70Hz line frequency range with single calibration
• Flexible power supply options with automatic switching
• Display operates at very low power during AC main power failure: 3μA in LMP3
• LCD driver with up to 320-segment contrast control
• Password-protected real-time clock (RTC) with crystal offset calibration and temperature compensation
• Integrated security module to support anti-tampering and encryption
• Multiple communication interfaces for smart meter implementation
• High-performance 25MHz CPU with 32-bit multiplexer
• Wide input power supply voltage range: 3.6V down to 1.8V
• Ultra-low power consumption during energy management – 2.9mW at 10MHz operation (3V)
• Multiple low-power modes
• Standby mode (LPM3): 2.1μA at 3V, wakes up in less than 5µs
• RTC mode (LPM3.5): 0.34μA at 3V
• Shutdown mode (LPM4.5): 0.18μA at 3V
• Up to 512KB of single-cycle flash
• Up to 32KB of RAM supporting single-cycle access
• Up to seven independent 24-bit Σ-Δ ADCs supporting differential input and variable gain
• System 10-bit 200ksps ADC – 6 enhanced channels for power and temperature sensor measurement
• Integrated hardware AES-128 module for encryption
• Six enhanced communication ports configurable between 4 asynchronous transceivers (UART), 6 serial peripheral interfaces (SPI), and 2 I²C interfaces
• Four 16-bit timers with a total of 9 capture/compare registers
• 128-pin thin quad flat (LQFP) (PEU) package with 90 I/O pins
• 100-pin LQFP (PZ) package with 62 I/O pins
• Industrial temperature range of -40℃ to 85℃
• Three-phase electronic meter development tools
• EVM430-F6779 and application manual
• Energy measurement design center for MSP430™ MCUs