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Texas Instruments MSP430FR60431IPNR
- Part No.:
- MSP430FR60431IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430FR60431IPNR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,537
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Product details
Overview
MSP430FR60431IPNR from Texas Instruments is an ultrasonic sensing microcontroller (MCU) optimized for battery-powered smart utility meters. It integrates a 16-MHz RISC CPU, 64KB FRAM, 12KB RAM, 12-bit 8-MSPS sigma-delta ADC (SDHS), programmable gain amplifier (PGA), and dedicated Ultrasonic Sensing Solution (USS_A) subsystem with PPG, PHY, and MTIF. It achieves ±12.5-ps dToF accuracy for water flow and supports ISO4064/EN14236-compliant metering.
For engineers reviewing the MSP430FR60431IPNR datasheet, MSP430FR60431IPNR pinout, MSP430FR60431IPNR application, or MSP430FR60431IPNR equivalent, key selection criteria include differential time-of-flight resolution (<5 ps), ultra-low active current (120 µA/MHz), LPM3.5 RTC mode (450 nA), integrated USS_A analog front end, and I²C bootloader support - all validated for gas/water meter design under EN 1434 and OIML R49.
Technical Context
The MSP430FR60431IPNR implements a dedicated USS_A subsystem with programmable pulse generator (PPG), low-impedance 4-Ω PHY driver, and high-speed SDHS ADC (8 Msps) for direct excitation and acquisition from 2.5-MHz ultrasonic transducers. Its PLL delivers 68–80 MHz clocking to sustain real-time signal processing.
Digital signal processing is offloaded to the Low-Energy Accelerator (LEA), which executes 256-point complex FFT up to 40× faster than the CPU while operating independently in parallel. The device uses FRAM for unified nonvolatile program/data/storage space with 10¹⁵ write endurance and radiation resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit RISC CPUXV2, up to 16 MHz - enables deterministic real-time control of ultrasonic burst timing and echo windowing. |
| Ultrasonic Sensing | Integrated USS_A module with PPG, 4-Ω PHY, PGA (–6.5 dB to 30.8 dB), and SDHS ADC (8 Msps) - eliminates external AFE components for single-chip metering. |
| Time-of-Flight Accuracy | ±12.5 ps dToF (water), ±250 ps dToF (gas) across temperature - meets ISO4064 Class B/C and EN 14236 requirements without calibration drift compensation. |
| Power Modes | LPM3.5 (RTC active): 450 nA; LPM4.5 (shutdown): 30 nA; Active: 120 µA/MHz - supports 10+ year battery life in AMI water/gas meters. |
| Memory | 64 KB FRAM + 12 KB RAM (8 KB shared with LEA) - provides fast, low-energy writes for logging flow events and firmware updates without wear leveling. |
| Bootloader | Hardware I²C BSL (not UART) - enables secure field firmware updates via two-wire interface without UART pins or external level shifters. |
| Security | 256-bit AES coprocessor + IP encapsulation + FRAM intrinsic tamper resistance - protects metrology algorithms and billing data per IEC 62443-3-3. |
Pinout & Package
LQFP-80 package (12 mm × 12 mm), thermally enhanced with dedicated PVCC/PVSS power domains for ultrasonic analog circuitry and separate AVCC/AVSS for precision ADC reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0_IN / CH1_IN | Ultrasonic receive input | Differential analog inputs to SDHS ADC; support >100 dB SNR for weak echo detection at low flow. |
| CH0_OUT / CH1_OUT | Ultrasonic transmit output | Low-impedance outputs from USS_A PHY; drive 2.5-MHz transducers directly with matched 4-Ω source impedance. |
| USSXTIN / USSXTOUT | USS crystal interface | Connects to dedicated 3.7-pF crystal for ultra-stable 32.768-kHz timing - critical for sub-picosecond dToF measurement stability. |
| PJ.6 / PJ.7 | High-frequency crystal interface | HFXIN/HFXOUT pins for 4–24 MHz crystal; supply clean clock to USS_A PLL for precise 68–80 MHz operation. |
| P3.1 / P4.0 | Metering test interface | MTIF_OUT_IN and MTIF_PIN_EN enable pulse generation/counting up to 1024 p/s with 16-bit counter - supports metrological verification per OIML R49 Annex C. |
Key Features
| Feature | Design Value |
|---|---|
| Ultrasonic Sensing Solution (USS_A) | Single-chip AFE with PPG, 4-Ω PHY, PGA, and 8-Msps SDHS ADC - reduces BOM by ≥7 analog components and eliminates external matching networks. |
| Low-Energy Accelerator (LEA) | Hardware FFT engine executing 256-point complex FFT in <100 µs while CPU sleeps - enables real-time spectral analysis without increasing active power budget. |
| Ferroelectric RAM (FRAM) | 64 KB unified memory with 125 ns write speed and 10¹⁵ endurance - allows frequent logging of dToF timestamps and flow diagnostics without flash wear-out concerns. |
| Metering Test Interface (MTIF) | Dedicated pulse generator/counter operating in LPM3.5 at 200 nA - supports periodic self-test and metrological validation without waking CPU or disrupting ultrasonic measurement cycles. |
| I²C Bootloader (BSL) | Hardware-implemented I²C BSL on P1.6/P1.7 - enables secure, pin-minimized firmware updates in deployed meters without UART-level shifters or additional GPIO. |
Applications
| Ultrasonic Smart Water Meter | Ultrasonic Smart Gas Meter |
|---|---|
Use Scenario: Residential/commercial water meter measuring flow from <1 L/h to 8800 L/h across 15–1000 mm pipe diameters. IC Role / Device Role / Timing Role: Primary metrology SoC performing dToF calculation, temperature compensation, and pulse output via MTIF. Use Value: Achieves ±1% accuracy over 500:1 dynamic range with <5 ps time resolution - exceeds ISO4064 Class B requirements without mechanical moving parts. | Use Scenario: Industrial gas metering up to 25,000 L/h with minimum detectable flow <3 L/h in varying ambient temperatures. IC Role / Device Role / Timing Role: Integrated ultrasonic controller handling transducer excitation, echo digitization, and compensated dToF computation using LEA-accelerated FFT. Use Value: Delivers ±1% accuracy up to 12,000 L/h with 200:1 range and compliance to EN 1434 and OIML R49 - eliminates need for external flow computers. |
| Ultrasonic Heat Meter | Flow Transmitter |
Use Scenario: Two-sensor heat meter calculating thermal energy (kWh) using forward/reverse flow and ΔT from PT1000 sensors. IC Role / Device Role / Timing Role: Dual-channel ultrasonic processor acquiring dToF on both paths simultaneously, with integrated 12-bit SAR ADC for temperature sensing. Use Value: Enables synchronized dual-path measurement with <12.5 ps dToF accuracy - ensures EN 1434 Class 2 accuracy for heating/cooling energy billing. | Use Scenario: Industrial process transmitter outputting 4–20 mA or digital Modbus flow rate in hazardous environments. IC Role / Device Role / Timing Role: Standalone flow computation engine interfacing with external DAC/Modbus PHY via eUSCI_B0/I²C and eUSCI_A3/UART. Use Value: Integrates metrology-grade dToF processing, LCD driver (248 seg), and AES-256 encryption - reduces system-level certification effort for SIL-2 applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrasonic metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6043IPNR | UART bootloader; identical USS_A, FRAM, LEA, and pinout - differs only in BSL interface protocol. | Requires UART-level communication for firmware updates; no hardware I²C BSL support. | Select when existing toolchain relies on UART-based programming or legacy host MCU lacks I²C master capability. |
| MSP430FR50431IPMR | 64-pin LQFP; no LCD driver; 7 ADC channels (vs. 8); same USS_A, LEA, FRAM, and I²C BSL. | Lower pin count and no LCD support - suited for compact, display-less transmitters or PCB space-constrained designs. | Select when board area is constrained and LCD display is unnecessary; retains full ultrasonic metrology capability in smaller footprint. |
Compared with MSP430FR6043IPNR and MSP430FR50431IPMR, the MSP430FR60431IPNR uniquely combines I²C BSL, 80-pin LQFP with full LCD support (248 segments), and identical ultrasonic metrology performance - making it optimal for certified, display-equipped smart meters requiring secure field updates.
Availability
MSP430FR60431IPNR 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 metrological traceability.
Supply support for MSP430FR60431IPNR 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 solutions with emphasis on reliability, energy efficiency, and system integration.
The MSP430FR604x product line was designed specifically for ultrasonic flow metering applications - integrating sensor excitation, high-resolution time measurement, low-power DSP, and metrological compliance into a single SoC.
FAQ
What is the primary metrological function of the MSP430FR60431IPNR in ultrasonic flow measurement?
The MSP430FR60431IPNR performs differential time-of-flight (dToF) calculation using its integrated USS_A subsystem, which includes a programmable pulse generator, 4-Ω PHY driver, PGA, and 8-Msps sigma-delta ADC. It achieves ±12.5-ps dToF accuracy for water and ±250-ps for gas across temperature - enabling ISO4064 and EN 14236 compliance without external AFE components. This core function is executed entirely within the MSP430FR60431IPNR.
Does the MSP430FR60431IPNR support hardware encryption for firmware security?
Yes, the MSP430FR60431IPNR includes a dedicated 256-bit AES security coprocessor and IP encapsulation logic that prevents external access to FRAM contents. These features, combined with FRAM's intrinsic resistance to glitch attacks and radiation, provide hardware-enforced protection for metrology algorithms and billing data - satisfying IEC 62443-3-3 requirements for secure utility metering.
How does the Low-Energy Accelerator (LEA) improve ultrasonic signal processing in the MSP430FR60431IPNR?
The LEA in the MSP430FR60431IPNR executes 256-point complex FFT up to 40× faster than the CPU while operating independently in parallel. This offloads computationally intensive spectral analysis from the main core, allowing the MSP430FR60431IPNR to maintain ultra-low power consumption (e.g., 450 nA in LPM3.5) during real-time echo processing - critical for extending battery life in sealed, maintenance-free meters.
What is the role of the Metering Test Interface (MTIF) in the MSP430FR60431IPNR?
The MTIF in the MSP430FR60431IPNR provides dedicated pulse generation and counting functionality (up to 1024 p/s, 16-bit capacity) that operates in LPM3.5 at just 200 nA. It enables automated metrological verification, self-test routines, and pulse-output compliance testing per OIML R49 Annex C - all without waking the CPU or interrupting ultrasonic measurement cycles.
Which crystal configurations are required for precision dToF operation in the MSP430FR60431IPNR?
The MSP430FR60431IPNR requires two crystals: a 3.7-pF 32.768-kHz crystal on USSXTIN/USSXTOUT for ultra-stable timebase generation essential to sub-picosecond dToF resolution, and a 4–24 MHz crystal on PJ.6/PJ.7 to feed the USS_A PLL for precise 68–80 MHz operation. Both are mandatory for achieving ±12.5-ps water dToF accuracy specified in the MSP430FR60431IPNR datasheet.
MSP430FR60431IPNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-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, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 57
- 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 10x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR60431IPNR FAQ
1.How can I place an order for MSP430FR60431IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR60431IPNR 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 MSP430FR60431IPNR reliable?
The price and inventory of MSP430FR60431IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR60431IPNR is usually 5 days.
3.What payment methods are accepted for MSP430FR60431IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR60431IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR60431IPNR?
MSP430FR60431IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR60431IPNR 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 MSP430FR60431IPNR?
For technical support, including MSP430FR60431IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR60431IPNR requirements.
6.How does Aetrix verify that MSP430FR60431IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430FR60431IPNR 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 MSP430FR60431IPNR meets industry standards.
7.What is the process for return or replacement of MSP430FR60431IPNR?
All MSP430FR60431IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR60431IPNR, 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 MSP430FR60431IPNR part is unused and in its original packaging.
Return procedure for MSP430FR60431IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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