Overview
The MSP430F67471AIPZR is a polyphase metering System-on-Chip (SoC) developed by Texas Instruments. This device is part of the MSP430F67xx1A family, which is designed for high-accuracy energy measurement and power monitoring applications. The MSP430F67471AIPZR integrates a high-performance MSP430 CPU with a 32-bit multiplier, making it suitable for complex metrology calculations and smart grid applications.
Key Specifications
| Specification | Value |
|---|---|
| Package | 100-Pin LQFP (PZ) |
| Flash Memory | 256 KB |
| RAM | 32 KB |
| ADCs | Up to 4 independent 24-bit Sigma-Delta ADCs |
| SAR ADC | 10-bit, 200-ksps, 6 external channels, 2 internal channels |
| CPU | High-performance 25-MHz CPU with 32-bit multiplier |
| Supply Voltage Range | 3.6 V down to 1.8 V |
| Low-Power Modes | Standby Mode (LPM3): 2.1 µA at 3 V, RTC Mode (LPM3.5): 0.34 µA at 3 V, Shutdown Mode (LPM4.5): 0.18 µA at 3 V |
| Communication Interfaces | Six Enhanced Universal Serial Communication Interfaces (eUSCIs) supporting UART, IrDA, SPI, and I²C |
| Temperature Range | –40°C to 85°C |
| Display | LCD driver with contrast control for up to 320 segments |
| Real-Time Clock | Password-protected RTC with crystal offset calibration and temperature compensation |
Key Features
- Accuracy < 0.1% over 2000:1 dynamic range for phase current, meeting or exceeding 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 and 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.
- Ultra-low power consumption with multiple low-power modes.
- LCD driver with contrast control for up to 320 segments.
- Password-protected real-time clock with tamper detection and temperature compensation.
- Integrated security modules to support anti-tamper and encryption.
- Multiple communication interfaces for smart meter implementations.
Applications
- Three-phase electronic watt-hour meters.
- Utility metering.
- Energy monitoring.
- Smart grid and building automation.
Q & A
- What is the primary application of the MSP430F67471AIPZR?
The primary application is in three-phase electronic watt-hour meters, utility metering, and energy monitoring.
- What is the accuracy of the MSP430F67471AIPZR for phase current measurement?
The accuracy is less than 0.1% over a 2000:1 dynamic range.
- What types of sensors does the MSP430F67471AIPZR support?
It supports current transformers, Rogowski coils, or shunts.
- What is the power consumption in standby mode?
In standby mode (LPM3), the power consumption is 2.1 µA at 3 V.
- Does the MSP430F67471AIPZR have integrated security features?
Yes, it includes integrated security modules to support anti-tamper and encryption.
- What communication interfaces are available on the MSP430F67471AIPZR?
It features six enhanced universal serial communication interfaces (eUSCIs) supporting UART, IrDA, SPI, and I²C.
- What is the temperature range for the MSP430F67471AIPZR?
The operating temperature range is –40°C to 85°C.
- Does the MSP430F67471AIPZR have a real-time clock?
Yes, it has a password-protected real-time clock with crystal offset calibration and temperature compensation.
- How many ADCs does the MSP430F67471AIPZR have?
It has up to 4 independent 24-bit Sigma-Delta ADCs and a 10-bit 200-ksps SAR ADC.
- What is the display capability of the MSP430F67471AIPZR?
The device includes an LCD driver with contrast control for up to 320 segments.
