MSP430F67641AIPZ Texas Instruments 16bit MCU

MSP430F67641AIPZ Overview

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 with AMR or AMI modules.

The MSP430F676x1A 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 MSP430F676x1A means that the system power supply can be minimized to reduce overall cost. Lowest standby power means that backup energy storage can be minimized, and critical data retained longer in case of a mains power failure.

The MSP430F676x1A family executes the TI energy measurement software library, which calculates all relevant energy and power results. The energy measurement software library is available with the MSP430F676x1A at no cost. Industry-standard development tools and hardware platforms are available to speed development of meters that meet all of the ANSI and IEC standards globally.

For complete module descriptions, see the MSP430F5xx and MSP430F6xx Family User’s Guide.

Features

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 (RTC) Module Operating from Dedicated Power Supply (AUXVCC3) Offering Integrated Offset and Temperature Calibration Features
Multiple Communication Interfaces for Smart Meter Implementations
High-Performance 25-MHz CPU With 32-Bit Multiplier
Up to 128KB of Flash With Single-Cycle Execution
Up to 8KB of RAM With Single-Cycle Access
Up to Three Independent 24-Bit Sigma-Delta Analog-to-Digital Converters (ADCs) With Differential Inputs and Variable Gain
System ADC:
10-Bit 200-ksps 6-Channel Plus Temperature Sensor and Supply Measurement
Wide Input Supply-Voltage Range:
1.8 V to 3.6 V
Ultra-Low Power Consumption During Energy Measurement
- 3.0 mW at 10-MHz Operation (3.0 V)
Multiple Low-Power Modes
- Standby Mode (LPM3): 2.5 μA at 3 V, Wake up in 3 μs (Typical)
- RTC Mode (LPM3.5): 1.24 μA at 3 V (Typical)
- Shutdown Mode (LPM4.5): 0.78 μA at 3 V (Typical)
LCD Driver With Contrast Control for up to 320 Segments
Password-Protected RTC With Crystal Offset Calibration and Temperature Compensation
Four Communications Ports
- Configurable Among Four UART, Three SPI, and One I2C Interfaces
Four 16-Bit Timers With Nine Capture/Compare Registers
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
Development Tool (Also See Tools and Software)
- Polyphase Electric Meter with MSP430F67641 SoC (EVM430-F67641)

Applications

MSP430F6xx

Specifications

Core Processor CPUXV2
Speed 25MHz
Operating Temperature -40℃ ~ 85℃ (TA)
Program Memory Type FLASH
RAM Size 8K x 8
Number of I/O 72
Peripherals Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT, 3x24b Sigma Delta Converter
Mounting Type Surface Mount
Oscillator Type Internal
Supplier Device Package 100-LQFP (14x14)
Package / Case 100-LQFP
Core Size 16-Bit
Connectivity I2C, IrDA, SPI, UART/USART
Program Memory Size 128KB (128K x 8)
Data Converters A/D 8x10b
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V

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