MSP430FR5043 Ultrasonic sensing MSP430™ microcontrollers for gas and water flow metering applications | TI.com

MSP430FR5043
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Ultrasonic sensing MSP430™ microcontrollers for gas and water flow metering applications

 

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EVM for evaluation of ultrasonic sensing gas and water applications (EVM430-FR6043). Order now

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Free ultrasonic sensing design center GUI and software library (MSP-ULTRASONIC-DESIGN-CENTER). Get software

Description

The Texas Instruments MSP430FR6043 SoCs are part of the MSP430 Ultrasonic Sensing microcontroller (MCU) family and are powerful, highly integrated devices designed for ultrasonic water, heat, and gas meters. These MCUs offer an integrated Ultrasonic Sensing Solution (USS_A) module, which provides high accuracy for a wide range of flow rates. The USS_A helps provide ultra-low-power metering combined with lower system cost due to maximum integration and requires very few external components.

MSP430FR6043 devices implement high-speed ADC-based signal acquisition followed by optimized digital signal processing using the low-energy accelerator (LEA) to deliver a high-accuracy metering solution with ultra-low power optimum for battery-powered metering applications.

The USS_A module includes a programmable pulse generator (PPG) and a physical interface (PHY) with a low impedance output driver for optimum sensor excitation and accurate impendence matching to deliver best results for zero-flow drift (ZFD). The USS_A module also includes a programmable gain amplifier (PGA) and a high-speed 12-bit 8-Msps sigma-delta ADC (SDHS) for accurate signal acquisition from industry standard ultrasonic transducers.

The MSP430FR6043 MCUs also integrate other peripherals to improve system integration for metering. It has a metering test interface (MTIF) module to implement pulse generation to indicate flow measured by the meter. It also has an on-chip 8-mux LCD driver, real-time clock (RTC), 12-bit SAR ADC, analog comparator, advanced encryption (AES256), and cyclic redundancy check (CRC) modules.

MSP430FR604x and MSP430FR504x MCUs are supported by an extensive hardware and software ecosystem with reference designs and code examples to get your design started quickly. Development kits include the MSP-TS430PN80C 80-pin target development board and EVM430-FR6043 ultrasonic gas flow meter EVM. TI also provides free software including the ultrasonic sensing design center, ultrasonic sensing software library, and MSP430Ware™ software.

The MSP430FR604x MCU family integrates TI’s FRAM (ferro-electric RAM) and a holistic ultra-low-power MSP system architecture, allowing system designers to increase performance while lowering energy consumption. FRAM technology combines the low-energy fast writes, flexibility, and endurance of RAM with the non-volatility of flash.

Features

  • Best-in-class ultrasonic water and gas flow measurement with ultra-low power consumption
    • Water
      • ±12.5-ps differential time of flight (dToF) accuracy at low to high flow rates and across operating temperature
      • Achieves ±1% accuracy for a wide dynamic range of 500:1
      • Ability to measure a maximum flow rate of 8800 liters/hour (40 gallons/minute) on 25‑mm diameter pipe
      • Ability to detect a minimum flow rate of <1 liter/hour (0.005 gallons/minute)
      • High-precision time measurement resolution of <5 ps
      • Approximately 3-µA overall current consumption with 1 set of results per second
      • Ability to support a wide pipe sizes with 15‑mm to 1000-mm diameter
    • Gas
      • ±250-ps differential time of flight (dToF) accuracy at low to high flow rates and across operating temperature
      • Achieves ±1% accuracy up to 12000 liters/hour with a wide dynamic range of 200:1
      • Ability to measure a flow rate >25000 liters/hour
      • Ability to detect a minimum flow rate of <3 liters/hour
      • High-precision time measurement resolution of <100 ps
      • Approximately 20-µA overall current consumption with 1 set of results per second
  • Compliant to and exceeds ISO4064, OIML R49, EN 14236 and EN 1434 accuracy standards
  • Ability to directly interface standard ultrasonic sensors (up to 2.5 MHz)
  • Integrated analog front end – Ultrasonic Sensing Solution (USS_A) that includes
    • Programmable pulse generator (PPG) to generate multi-tone pulses at various frequencies
    • Integrated PHY with low-impedance output driver (4 Ω) to control input and output channels
    • High-performance high-speed 12-bit analog-to-digital converter (SDHS) with output data rates up to 8 Msps
    • Programmable gain amplifier (PGA) with –6.5 dB to 30.8 dB
    • High-performance PLL with output range of 68 to 80 MHz
  • Metering test interface (MTIF)
    • Pulse generator and pulse counter
    • Pulse rates up to 1024 pulses per second (p/s)
    • Count capacity up to 65535 (16 bit)
    • Operates in LPM3.5 with 200 nA (typical)
  • Low-energy accelerator (LEA)
    • Operation independent of CPU
    • 8KB of RAM shared with CPU
    • Efficient 256-point complex FFT: Up to 40x faster than Arm® Cortex®-M0+ core
  • Embedded microcontroller
    • 16-bit RISC architecture up to 16‑MHz clock
    • Wide supply voltage range: 1.8 V to 3.6 V (1)
  • Optimized ultra-low-power modes
    • Active mode: approximately 120 µA/MHz
    • Standby mode with real-time clock (RTC) (LPM3.5): 450 nA (2)
    • Shutdown (LPM4.5): 30 nA
  • Ferroelectric random access memory (FRAM)
    • Up to 64KB of nonvolatile memory
    • Ultra-low-power writes
    • Fast write at 125 ns per word (64KB in 4 ms)
    • Unified memory = program + data + storage in one single space
    • 1015 write cycle endurance
    • Radiation resistant and nonmagnetic
  • Intelligent digital peripherals
    • 32-bit hardware multiplier (MPY)
    • 6-channel internal DMA
    • RTC with calendar and alarm functions
    • 6 16-bit timers with up to 7 capture/compare registers each
    • 32-bit and 16-bit cyclic redundancy check (CRC)
  • High-performance analog
    • 12-channel analog comparator
    • 12-bit ADC featuring window comparator, internal reference, and sample-and-hold, with up to 8 external input channels
    • Integrated LCD driver with contrast control for up to 248 segments
  • Multifunction input/output ports
    • All pins support capacitive-touch capability with no need for external components
    • Accessible bit-, byte-, and word-wise (in pairs)
    • Edge-selectable wake from LPM on all ports
    • Programmable pullup and pulldown on all ports
  • Code security and encryption
    • 128- or 256-bit AES security encryption and decryption coprocessor
    • Random number seed for random number generation algorithms
    • IP encapsulation protects memory from external access
    • FRAM provides inherent security advantages
  • Enhanced serial communication
    • Up to 4 eUSCI_A serial communication ports
      • UART with automatic baud-rate detection
      • IrDA encode and decode
    • Up to 2 eUSCI_B serial communication ports
      • I2C with multiple-slave addressing
    • Hardware UART or I2C bootloader (BSL)
  • Flexible clock system
    • Fixed-frequency DCO with 10 selectable factory-trimmed frequencies
    • Low-power low-frequency internal clock source (VLO)
    • 32-kHz crystals (LFXT)
    • High-frequency crystals (HFXT)
  • Development tools and software
  • Device Comparison summarizes the available device variants and package options
  • For complete module descriptions, see the MSP430FR58xx, MSP430FR59xx, and MSP430FR6xx Family User’s Guide

(1)Minimum supply voltage is restricted by SVS levels, see the SVS Specifications)

(2)The RTC is clocked by a 3.7-pF crystal.

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Parametrics

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Part number Order Features Non-volatile memory (kB) RAM (KB) ADC ADC: channels (#) GPIO pins (#) I2C SPI UART Comparator channels (#) Package Group Approx. price (US$) USB Timers - 16-bit Bootloader (BSL) Special I/O Operating temperature range (C) Package size: mm2:W x L (PKG) Rating
MSP430FR5043 Order now DMA
Low-energy accelerator (LEA)
MTIF (metering test interface)
Real-Time Clock
Ultrasonic Sensing AFE    
64     12     12-bit SAR     8     44     2     6     4     12     LQFP | 64
VQFN | 64    
6.53 | 1ku       6     UART       -40 to 85     64LQFP: 144 mm2: 12 x 12 (LQFP | 64)
64VQFN: 81 mm2: 9 x 9 (VQFN | 64)    
Catalog    
MSP430FR5041 Samples not available DMA
Low-energy accelerator (LEA)
MTIF (metering test interface)
Real-Time Clock
Ultrasonic Sensing AFE    
32     12     12-bit SAR     8     44     2     6     4     12     LQFP | 64
VQFN | 64    
6.53 | 1ku       6     UART       -40 to 85     64LQFP: 144 mm2: 12 x 12 (LQFP | 64)
64VQFN: 81 mm2: 9 x 9 (VQFN | 64)    
Catalog    
MSP430FR50431 Samples not available DMA
Low-energy accelerator (LEA)
MTIF (metering test interface)
Real-Time Clock
Ultrasonic Sensing AFE    
64     12     12-bit SAR     8     44     2     6     4     12     LQFP | 64
VQFN | 64    
6.53 | 1ku       6     I2C       -40 to 85     64LQFP: 144 mm2: 12 x 12 (LQFP | 64)
64VQFN: 81 mm2: 9 x 9 (VQFN | 64)    
Catalog    
MSP430FR6041 Samples not available DMA
LCD
Low-energy accelerator (LEA)
MTIF (metering test interface)
Real-Time Clock
Ultrasonic Sensing AFE    
32     12     12-bit SAR     8     57     2     6     4     12     LQFP | 80     6.53 | 1ku       6     UART         -40 to 85