Overview
The Texas Instruments MSP430FR6047IPZ is a highly integrated microcontroller (MCU) optimized for water and heat metering applications. This device is part of the MSP430FR604x and MSP430FR603x family, which are known for their ultra-low-power consumption and high accuracy in flow rate measurements. The MSP430FR6047IPZ features an integrated ultrasonic sensing solution (USS) module, which includes a programmable pulse generator (PPG), a physical interface (PHY), and a high-speed 12-bit sigma-delta ADC (SDHS) for accurate signal acquisition from ultrasonic transducers.
The MCU is designed to achieve ultra-low-power metering with minimal external components, making it ideal for battery-powered metering applications. It also includes various peripherals such as an on-chip LCD driver, RTC, 12-bit SAR ADC, analog comparator, and advanced encryption accelerators.
Key Specifications
| Specification | Details |
|---|---|
| Core Processor | MSP430 CPUXV2 |
| Core Size | 16-bit |
| Speed | Up to 16 MHz |
| Memory | 256 KB FRAM, 4 KB RAM |
| ADC | 12-bit sigma-delta ADC (SDHS) up to 8 Msps, 12-bit SAR ADC |
| Power Consumption | Approximately 3-µA overall current consumption with one measurement per second |
| Supply Voltage | 3.6 V to 1.8 V |
| Communication Interfaces | I2C, IrDA, SCI, SPI, UART/USART |
| Low-Power Modes | LPM3.5 with 200 nA (typical) |
| Additional Features | Programmable gain amplifier (PGA), low-energy accelerator (LEA), metering test interface (MTIF), pulse generator and pulse counter, RTC with calendar and alarm functions |
Key Features
- Integrated Ultrasonic Sensing Solution (USS): Includes a programmable pulse generator (PPG), physical interface (PHY) with low-impedance output driver, and a high-speed 12-bit sigma-delta ADC (SDHS) for accurate signal acquisition from ultrasonic transducers.
- Ultra-Low Power Consumption: Approximately 3-µA overall current consumption with one measurement per second, making it suitable for battery-powered applications.
- High-Precision Time Measurement: High-precision time measurement resolution of <5 ps and differential time-of-flight (dTOF) accuracy of <25 ps.
- Advanced Analog Peripherals: Includes a programmable gain amplifier (PGA) with –6.5 dB to 30.8 dB, 12-bit SAR ADC, and 16-channel analog comparator.
- Security Features: 128- or 256-bit AES security encryption and decryption coprocessor, random number seed, and IP encapsulation to protect memory from external access.
- Communication Interfaces: Up to four eUSCI_A serial communication ports, including I2C, IrDA, SCI, SPI, and UART/USART.
- Development Tools and Software: Supported by the Ultrasonic Sensing Design Center, ultrasonic sensing software library, and MSP430Ware™ software, along with development kits like the EVM430-FR6047 and MSP-TS430PZ100E target development board.
Applications
- Water Meters: Optimized for ultrasonic water-flow measurement with high accuracy and ultra-low power consumption, compliant with ISO 4064, OIML R49, and EN 1434 standards.
- Heat Meters: Suitable for heat metering applications requiring precise flow rate measurements and low power consumption.
- Smart Metering Systems: Ideal for smart metering systems that require advanced sensing capabilities and low energy consumption.
- Battery-Powered Devices: Suitable for battery-powered devices due to its ultra-low-power modes and efficient energy management.
Q & A
- What is the primary application of the MSP430FR6047IPZ MCU?
The primary application is for water and heat metering, particularly in ultrasonic water-flow measurement.
- What is the power consumption of the MSP430FR6047IPZ during one measurement per second?
Approximately 3-µA overall current consumption.
- What is the accuracy of the differential time-of-flight (dTOF) measurement?
<25 ps.
- What types of ADCs are integrated into the MSP430FR6047IPZ?
12-bit sigma-delta ADC (SDHS) and 12-bit SAR ADC.
- What is the maximum clock speed of the MSP430FR6047IPZ?
Up to 16 MHz.
- What security features does the MSP430FR6047IPZ include?
128- or 256-bit AES security encryption and decryption coprocessor, random number seed, and IP encapsulation.
- What development tools and software are available for the MSP430FR6047IPZ?
Ultrasonic Sensing Design Center, ultrasonic sensing software library, MSP430Ware™ software, EVM430-FR6047 evaluation module, and MSP-TS430PZ100E target development board.
- What communication interfaces are supported by the MSP430FR6047IPZ?
I2C, IrDA, SCI, SPI, and UART/USART.
- What is the supply voltage range of the MSP430FR6047IPZ?
3.6 V to 1.8 V.
- Does the MSP430FR6047IPZ support low-power modes?
Yes, it operates in LPM3.5 with 200 nA (typical).
