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Texas Instruments MSP430FR5043IPMR
- Part No.:
- MSP430FR5043IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR5043IPMR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,871
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Product details
Overview
MSP430FR5043IPMR from Texas Instruments is a 16-MHz ultrasonic sensing microcontroller with integrated USS_A analog front end, 64KB FRAM, 12-bit 8-MSPS sigma-delta ADC, and low-energy accelerator (LEA) - designed for battery-powered water/gas flow meters requiring ±1% accuracy across 500:1 dynamic range and <1 L/h minimum detectable flow.
For engineers reviewing the MSP430FR5043IPMR datasheet, MSP430FR5043IPMR pinout, MSP430FR5043IPMR application, or MSP430FR5043IPMR equivalent, this page delivers verified technical context, real-world timing/accuracy specs, package-validated I/O mapping, and functionally aligned alternatives for metering system design and qualification.
Technical Context
The MSP430FR5043IPMR implements a dedicated ultrasonic sensing subsystem (USS_A) with programmable pulse generator (PPG), 4-Ω low-impedance PHY driver, PGA (–6.5 dB to 30.8 dB), and high-speed SDHS ADC (up to 8 Msps) - enabling direct excitation and acquisition from standard 2.5 MHz transducers. Its LEA subsystem executes 256-point complex FFT independently of CPU at up to 40× speed versus Cortex-M0+.
It integrates metering-specific peripherals including MTIF (pulse generation/counting up to 1024 p/s in LPM3.5 at 200 nA), RTC with calendar, and FRAM-based unified memory architecture supporting 1015 write cycles - all operating within 1.8–3.6 V supply and optimized for ultra-low-power modes (LPM4.5: 30 nA, LPM3.5: 450 nA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16 MHz clock - enables deterministic real-time signal processing for time-of-flight (dToF) computation. |
| Ultrasonic Sensing Engine | USS_A module with PPG, 4-Ω PHY, PGA (–6.5 dB to 30.8 dB), and 12-bit SDHS ADC @ 8 Msps - supports differential dToF measurement with <5 ps resolution for water and <100 ps for gas. |
| Memory | 64 KB FRAM + 12 KB RAM (8 KB shared with LEA) - provides nonvolatile storage with 125 ns/word write speed and radiation resistance for field-deployed meters. |
| Power Consumption | LPM3.5 (RTC active): 450 nA; LPM4.5 (shutdown): 30 nA; Active mode: ~120 µA/MHz - enables >10-year battery life in smart meter applications. |
| Accuracy Compliance | Meets ISO 4064, OIML R49, EN 14236, and EN 1434 standards - validated for ±1% flow accuracy across wide temperature and flow ranges. |
| Digital Acceleration | Low-Energy Accelerator (LEA) with 8 KB shared RAM - performs 256-point complex FFT in hardware, offloading CPU and reducing active time by up to 40×. |
Pinout & Package
LQFP-64 (10 mm × 10 mm) package with 44 GPIOs, dedicated USS analog channels (CH0_IN/CH0_OUT, CH1_IN/CH1_OUT), ultrasonic crystal interface (USSXTIN/USSXTOUT/USSXT_BOUT), and metrology-specific pins (MTIF_PIN_EN, MTIF_OUT_IN).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0_IN / CH1_IN | USS analog input | Differential receive path for ultrasonic echo signals from transducer pairs - routed directly to SDHS ADC input stage. |
| CH0_OUT / CH1_OUT | USS analog output | Low-impedance (4 Ω) transmit driver outputs - deliver multi-tone excitation pulses with precise impedance matching to minimize zero-flow drift. |
| USSXTIN / USSXTOUT | Ultrasonic crystal interface | Connects external 2.5 MHz ultrasonic transducer in half-bridge configuration - supports direct piezoelectric drive without external drivers. |
| MTIF_PIN_EN / MTIF_OUT_IN | Metering test interface control | Enables pulse generation (up to 1024 p/s) and counting (16-bit capacity) for calibration and verification - operates in LPM3.5 at 200 nA. |
| PVCC / PVSS | Analog power domain | Independent 1.8–3.6 V supply rails for USS_A subsystem - isolate noise-sensitive analog circuitry from digital switching. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USS_A subsystem | Combines PPG, 4-Ω PHY, PGA, and 8-MSPS SDHS ADC - eliminates need for 5+ external components in ultrasonic flow meter BOM. |
| FRAM memory architecture | 64 KB unified nonvolatile memory with 125 ns write speed and 1015 endurance - enables frequent logging of flow events without wear-out concerns. |
| Low-Energy Accelerator (LEA) | Hardware FFT engine executing 256-point complex transforms independently of CPU - reduces active processing time and extends battery life. |
| Metering Test Interface (MTIF) | 16-bit pulse counter and generator operating in LPM3.5 at 200 nA - supports field calibration and metrological verification without waking CPU. |
| Ultra-low-power operation | 30 nA shutdown (LPM4.5) and 450 nA RTC-active mode (LPM3.5) - meets 10+ year battery life requirement for sealed smart meters. |
Applications
| Ultrasonic Smart Water Meter | Ultrasonic Smart Gas Meter |
|---|---|
Use Scenario: Residential and commercial water consumption monitoring with tamper resistance and leak detection. IC Role / Device Role / Timing Role: Primary SoC performing dToF measurement, flow calculation, data logging, and LCD display control. Use Value: Achieves ±1% accuracy over 500:1 dynamic range and detects flows as low as <1 L/h - exceeding ISO 4064 Class C requirements. | Use Scenario: Industrial and municipal natural gas metering under varying pressure and temperature conditions. IC Role / Device Role / Timing Role: Core metrology controller handling ultrasonic transit-time computation, temperature compensation, and pulse output for billing systems. Use Value: Delivers ±1% accuracy up to 12,000 L/h with 200:1 range and complies with OIML R49 and EN 14236 standards. |
| Ultrasonic Heat Meter | Flow Transmitter |
Use Scenario: District heating energy measurement using forward/reverse flow and ΔT calculation. IC Role / Device Role / Timing Role: Dual-channel ultrasonic processor acquiring time-of-flight on two independent paths while managing RTD inputs and communication. Use Value: Simultaneous dual-path dToF measurement with <5 ps resolution enables sub-0.5% thermal energy accuracy per EN 1434. | Use Scenario: OEM integration into industrial process control systems requiring analog/digital flow output. IC Role / Device Role / Timing Role: Standalone flow computation engine interfacing with host PLC via UART/I²C and generating calibrated pulse or 4–20 mA equivalent output. Use Value: MTIF pulse generation (up to 1024 p/s) and eUSCI_A/B serial interfaces enable seamless integration without external protocol converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrasonic sensing microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR50431IPMR | I²C bootloader instead of UART BSL; identical USS_A, FRAM, LEA, and power specs. | Preferred where I²C-based firmware update infrastructure is already deployed in production. | Select when system-level communication architecture mandates I²C for bootloader access. |
| MSP430FR6043IPN | 80-pin LQFP package; adds LCD_C driver (248 segments) and extra I/O (57 vs 44); same core USS_A and FRAM. | Suitable for designs requiring integrated segment LCD display and higher I/O count for multi-sensor expansion. | Choose when on-board LCD display and additional GPIOs justify larger footprint and cost premium. |
Compared with MSP430FR5043IPMR, the MSP430FR50431IPMR offers identical metrology performance with I²C BSL compatibility, while the MSP430FR6043IPN adds LCD support and I/O headroom at the cost of larger package - making the MSP430FR5043IPMR optimal for compact, cost-sensitive, UART-bootstrapped ultrasonic meters.
Availability
MSP430FR5043IPMR is available at Aetrix Electronics and suitable for ultrasonic smart water meters, ultrasonic smart gas meters, and flow transmitters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for utility-grade deployments.
Supply support for MSP430FR5043IPMR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies - with decades of expertise in precision sensing and ultra-low-power design.
The MSP430FR504x family is engineered specifically for battery-operated ultrasonic flow measurement, integrating USS_A, LEA, and FRAM to eliminate external signal chain components and extend operational lifetime beyond 10 years.
FAQ
What is the primary function of the MSP430FR5043IPMR in ultrasonic flow metering systems?
The MSP430FR5043IPMR serves as the complete system-on-chip for ultrasonic flow measurement, integrating the USS_A analog front end (PPG, 4-Ω PHY, PGA, 8-MSPS SDHS ADC), LEA for FFT-based signal processing, FRAM for nonvolatile event logging, and MTIF for pulse-based metrological verification - enabling single-chip meter designs compliant with ISO 4064 and OIML R49 standards. The MSP430FR5043IPMR replaces discrete signal chain components while delivering ±1% accuracy across 500:1 flow range.
Does the MSP430FR5043IPMR support direct connection to standard ultrasonic transducers?
Yes, the MSP430FR5043IPMR supports direct interface to industry-standard 2.5 MHz ultrasonic transducers via its dedicated USS_A analog channels (CH0_IN/CH0_OUT, CH1_IN/CH1_OUT) and crystal interface pins (USSXTIN, USSXTOUT, USSXT_BOUT). Its 4-Ω low-impedance PHY driver ensures optimal impedance matching to minimize zero-flow drift, and the integrated PPG generates multi-tone excitation pulses without external waveform generators. This capability is explicitly confirmed in TI's SLASEF5B datasheet Section 1 and Figure 4-1.
What are the key power modes and current consumption values for the MSP430FR5043IPMR?
The MSP430FR5043IPMR features ultra-low-power operation: LPM4.5 (shutdown) draws 30 nA; LPM3.5 (RTC active) consumes 450 nA; active mode is ~120 µA/MHz. These values are measured under 1.8–3.6 V supply and are validated in Section 8.9 of the SLASEF5B datasheet. The MTIF module operates at 200 nA in LPM3.5, enabling metrological pulse generation without full CPU wake-up - critical for achieving >10-year battery life in sealed smart meters using the MSP430FR5043IPMR.
How does the Low-Energy Accelerator (LEA) enhance ultrasonic signal processing in the MSP430FR5043IPMR?
The LEA in the MSP430FR5043IPMR executes 256-point complex FFT in hardware, independent of the CPU and using shared 8 KB RAM. This accelerates time-of-flight (dToF) computation by up to 40× versus software-based FFT on the CPUXV2 core, significantly reducing active-mode duration and total energy per measurement cycle. As documented in Section 9.4 of SLASEF5B, the LEA enables high-accuracy flow calculation while maintaining sub-µA average current - a key enabler for battery-powered metering applications relying on the MSP430FR5043IPMR.
What package type and pin count does the MSP430FR5043IPMR use, and which pins are dedicated to ultrasonic sensing?
The MSP430FR5043IPMR uses a 64-pin LQFP (PM) package (10 mm × 10 mm) with 44 GPIOs. Ultrasonic sensing is served by dedicated pins: CH0_IN/CH0_OUT and CH1_IN/CH1_OUT (pins 59–60, 63–64 on PM package), USSXTIN/USSXTOUT/USSXT_BOUT (pins 62, 61, 10), and PVCC/PVSS analog power rails (pins 56–57, 55, 58). Pin functions are fully detailed in Section 7.2 of the SLASEF5B datasheet, confirming hardware-level allocation for ultrasonic signal path integrity in the MSP430FR5043IPMR.
MSP430FR5043IPMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 9x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5043IPMR FAQ
1.How can I place an order for MSP430FR5043IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5043IPMR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430FR5043IPMR reliable?
The price and inventory of MSP430FR5043IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5043IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR5043IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5043IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5043IPMR?
MSP430FR5043IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5043IPMR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430FR5043IPMR?
For technical support, including MSP430FR5043IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5043IPMR requirements.
6.How does Aetrix verify that MSP430FR5043IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5043IPMR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430FR5043IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR5043IPMR?
All MSP430FR5043IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5043IPMR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430FR5043IPMR part is unused and in its original packaging.
Return procedure for MSP430FR5043IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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