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Texas Instruments MSP430FR5041IRGCT
- Part No.:
- MSP430FR5041IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5041IRGCT.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,836
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Product details
Overview
MSP430FR5041IRGCT from Texas Instruments is a 16-MHz ultrasonic sensing microcontroller with integrated USS_A analog front end, 32KB FRAM, 12KB RAM, and 12-bit 8-MSPS sigma-delta ADC. It delivers ±12.5-ps dToF accuracy for water flow measurement, achieves ±1% accuracy over 500:1 dynamic range, and operates at 3.6 V with 3 µA active current per measurement cycle - optimized for battery-powered smart water meters.
For engineers reviewing the MSP430FR5041IRGCT datasheet, MSP430FR5041IRGCT pinout, MSP430FR5041IRGCT application, or MSP430FR5041IRGCT equivalent, key selection criteria include ultrasonic time-of-flight resolution (<5 ps), integrated PPG/PHY/PGA signal chain, LEA-accelerated FFT processing, and VQFN-64 package compatibility with metering PCB layouts requiring minimal external components.
Technical Context
The MSP430FR5041IRGCT implements a dedicated ultrasonic sensing subsystem (USS_A) comprising a programmable pulse generator (PPG), low-impedance 4-Ω PHY driver, 30.8-dB PGA, and high-speed SDHS ADC with 8-MSPS output rate. Its PLL generates 68–80 MHz clocks for precise time measurement.
Signal processing leverages the Low-Energy Accelerator (LEA) - an independent 8KB-shared RAM subsystem enabling 256-point complex FFT up to 40× faster than the CPU - while the MCU maintains ultra-low-power LPM3.5 mode (450 nA) with RTC and MTIF pulse counting active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16 MHz clock - enables deterministic real-time ultrasonic timing control |
| Nonvolatile Memory | 32 KB FRAM - supports 10¹⁵ write cycles, 125 ns/word writes, unified program/data/storage space |
| Ultrasonic ADC | 12-bit sigma-delta SDHS with 8-MSPS output - captures high-fidelity echo waveforms for sub-ps time resolution |
| dToF Accuracy | ±12.5 ps (water), ±250 ps (gas) - enables ±1% flow accuracy across full temperature and flow range |
| Power Consumption | 3 µA avg. (1 result/sec, water mode), 450 nA (LPM3.5 w/ RTC) - supports >10-year battery life in AMI meters |
| Package | VQFN-64 (9 mm × 9 mm) - surface-mount footprint compatible with compact, sealed meter housings |
| USS_A Integration | PPG + PHY + PGA + SDHS + PLL - eliminates 12+ external components vs discrete AFE solutions |
Pinout & Package
VQFN-64 package with 0.5-mm pitch, 9 mm × 9 mm body size, and exposed thermal pad (PVSS/PVCC pins 55–58). Designed for reflow assembly and thermal dissipation in sealed meter enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0_IN / CH1_IN | Ultrasonic transducer input | Differential analog inputs to SDHS ADC - accept echo signals from dual-channel transducers |
| CH0_OUT / CH1_OUT | Ultrasonic transducer drive output | Low-impedance (4 Ω) PHY outputs - directly excite 2.5-MHz transducers without external drivers |
| USSXTIN / USSXTOUT | USS crystal interface | Connects to 8-MHz crystal for USS_A timing reference - enables <5-ps time measurement resolution |
| PJ.6 / PJ.7 | High-frequency crystal interface | HFXIN/HFXOUT pins for system clock - support 4–24 MHz crystals for main CPU/ADC timing |
| P3.1 / P4.0 | Metering test interface | MTIF_OUT_IN and MTIF_PIN_EN - generate/count pulses up to 1024 p/s for metrological calibration |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USS_A subsystem | Full ultrasonic signal chain (PPG → PHY → PGA → SDHS) reduces BOM count by ≥12 components and PCB area by >30% |
| Low-Energy Accelerator (LEA) | Hardware FFT engine operating independently of CPU - processes 256-point complex FFT in <1 ms at 3 µA |
| Ferroelectric RAM (FRAM) | 32 KB nonvolatile memory with 10¹⁵ endurance - stores calibration data, firmware updates, and usage logs without wear leveling |
| Metering Test Interface (MTIF) | 16-bit pulse counter + generator running in LPM3.5 at 200 nA - enables field calibration without waking CPU |
| Capacitive-touch I/O | All GPIO support CSD without external RC networks - allows tamper detection and buttonless UI on meter housing |
Applications
| Ultrasonic Smart Water Meter | Ultrasonic Smart Gas Meter |
|---|---|
Use Scenario: Residential/commercial water consumption monitoring with ISO 4064 Class B/C compliance and leak detection. IC Role / Device Role / Timing Role: Primary metrology SoC performing differential time-of-flight calculation, temperature compensation, and pulse output generation. Use Value: ±12.5-ps dToF accuracy enables ±1% flow error over 500:1 dynamic range (1–8800 L/h), validated per OIML R49. | Use Scenario: Industrial gas flow measurement in utility distribution networks requiring EN 14236 compliance. IC Role / Device Role / Timing Role: Ultrasonic flow processor executing multi-path transit-time analysis and pressure/temperature compensated volumetric correction. Use Value: ±250-ps dToF accuracy supports ±1% accuracy up to 25,000 L/h with 200:1 range - exceeds EN 14236 Class 1.5 requirements. |
| Ultrasonic Flow Transmitter | Ultrasonic Heat Meter |
Use Scenario: OEM flow sensor module integrating analog outputs (4–20 mA), digital interfaces (M-Bus, pulse), and diagnostics. IC Role / Device Role / Timing Role: Standalone flow computation engine with MTIF pulse output, UART/I²C host interface, and AES-256 encrypted data logging. Use Value: Integrated eUSCI_A/B peripherals enable direct M-Bus physical layer support and secure remote firmware updates via BSL. | Use Scenario: District heating energy metering with dual-flow temperature differential and EN 1434 Class 2 compliance. IC Role / Device Role / Timing Role: Dual-sensor controller acquiring forward/reverse flow + inlet/outlet temperature via 12-bit ADC and comparator inputs. Use Value: Simultaneous 8-channel ADC sampling and LEA-based FFT allow real-time acoustic noise rejection in noisy boiler environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrasonic sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5043IRGC | 64 KB FRAM (vs 32 KB), identical USS_A, same VQFN-64 package and pinout | Supports larger firmware images and extended calibration tables; no change to ultrasonic signal chain design | Select when future firmware expansion or multi-gas algorithm storage is required |
| MSP430FR6041IPN | LQFP-80 package, 32 KB FRAM, adds LCD_C driver (248-segment), same USS_A and LEA | Enables integrated display in handheld testers or portable calibrators; requires PCB redesign for 80-pin layout | Select when local human interface with segmented LCD is mandatory and board space permits larger package |
Compared with MSP430FR5043IRGC, the MSP430FR5041IRGCT offers identical ultrasonic performance at lower memory cost and smaller footprint; versus MSP430FR6041IPN, it trades display capability for compactness and lower system power - making it optimal for sealed, battery-operated meters where space and longevity are critical.
Availability
MSP430FR5041IRGCT is available at Aetrix Electronics and suitable for ultrasonic water metering, smart gas metering, and flow transmitter applications requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430FR5041IRGCT 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 delivering analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer systems.
The MSP430FR504x family targets ultra-low-power ultrasonic metrology - integrating USS_A, LEA, and FRAM to replace discrete AFEs and DSPs in battery-powered utility meters compliant with ISO, OIML, and EN standards.
FAQ
What is the primary metrological function of the MSP430FR5041IRGCT in ultrasonic flow measurement?
The MSP430FR5041IRGCT performs differential time-of-flight (dToF) calculation using its integrated USS_A subsystem - capturing ultrasonic echo waveforms via the 12-bit 8-MSPS SDHS ADC, applying PGA gain, and computing transit-time differences with ±12.5-ps accuracy for water flow. This core function enables ±1% measurement accuracy across 500:1 dynamic range without external timing ICs or signal processors.
Does the MSP430FR5041IRGCT support direct connection to standard ultrasonic transducers?
Yes, the MSP430FR5041IRGCT supports direct interface to industry-standard ultrasonic transducers up to 2.5 MHz via its integrated USS_A PHY, which features a 4-Ω low-impedance output driver on CH0_OUT/CH1_OUT pins. No external driver stages or matching networks are required, simplifying design and improving signal integrity in sealed meter housings.
How does the Low-Energy Accelerator (LEA) improve ultrasonic signal processing efficiency in the MSP430FR5041IRGCT?
The LEA in the MSP430FR5041IRGCT executes complex FFT operations independently of the CPU using shared 8KB RAM - delivering up to 40× faster 256-point complex FFT than the ARM Cortex-M0+ core. This accelerates spectral analysis for noise rejection and zero-flow drift compensation while consuming only 3 µA during active processing, preserving battery life in always-on metering applications.
What are the key power modes supported by the MSP430FR5041IRGCT for battery-operated meters?
The MSP430FR5041IRGCT supports LPM3.5 (450 nA with RTC active), LPM4.5 (30 nA shutdown), and ultralow-current MTIF operation (200 nA) - enabling multi-year battery life. Its active-mode current is ~120 µA/MHz, and overall system current drops to 3 µA per measurement cycle in water metering mode, meeting ANSI C12.22 and DLMS/COSEM communication duty-cycle requirements.
Is the MSP430FR5041IRGCT pin-compatible with other devices in the MSP430FR504x family?
Yes, the MSP430FR5041IRGCT is pin-compatible with MSP430FR5043IRGC and MSP430FR50431IRGC in the VQFN-64 package - sharing identical pin functions, electrical characteristics, and USS_A peripheral mapping. This allows hardware reuse across variants differing only in FRAM size (32 KB vs 64 KB) and bootloader interface (UART vs I²C).
MSP430FR5041IRGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SPI
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 32KB (32K 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:
MSP430FR5041IRGCT FAQ
1.How can I place an order for MSP430FR5041IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5041IRGCT 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 MSP430FR5041IRGCT reliable?
The price and inventory of MSP430FR5041IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5041IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430FR5041IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5041IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5041IRGCT?
MSP430FR5041IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5041IRGCT 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 MSP430FR5041IRGCT?
For technical support, including MSP430FR5041IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5041IRGCT requirements.
6.How does Aetrix verify that MSP430FR5041IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430FR5041IRGCT 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 MSP430FR5041IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430FR5041IRGCT?
All MSP430FR5041IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5041IRGCT, 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 MSP430FR5041IRGCT part is unused and in its original packaging.
Return procedure for MSP430FR5041IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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