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Texas Instruments MSP430FR6041IPN
- Part No.:
- MSP430FR6041IPN
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430FR6041IPN.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,674
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Product details
Overview
MSP430FR6041IPN from Texas Instruments is an ultrasonic sensing microcontroller (MCU) optimized for battery-powered smart water and gas meters. It integrates a 16-MHz RISC CPU, 32KB 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 and PHY. It achieves ±12.5-ps dToF accuracy for water flow and supports ISO4064/EN14236-compliant metering.
For engineers reviewing the MSP430FR6041IPN datasheet, MSP430FR6041IPN pinout, MSP430FR6041IPN application, or MSP430FR6041IPN equivalent, key selection criteria include differential time-of-flight resolution, USS_A analog front-end integration, FRAM endurance (10¹⁵ writes), ultra-low-power LPM3.5 mode (450 nA), and 80-pin LQFP package compatibility with EVM430-FR6043 hardware.
Technical Context
The MSP430FR6041IPN implements a tightly coupled ultrasonic sensing architecture: the USS_A module combines a programmable pulse generator (PPG), low-impedance 4-Ω PHY driver, PGA (–6.5 dB to 30.8 dB), and high-speed SDHS ADC (up to 8 Msps) for direct transducer excitation and echo digitization. Its PLL delivers 68–80 MHz clocking for precise time measurement.
Digital signal processing is offloaded to the Low-Energy Accelerator (LEA), which operates independently of the CPU and executes 256-point complex FFT up to 40× faster than the Cortex-M0+ core. The MCU also includes MTIF for pulse-based flow indication and supports UART/I²C bootloading via eUSCI_A/eUSCI_B peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit RISC CPUXV2, up to 16 MHz - enables deterministic real-time ultrasonic timing control |
| Nonvolatile Memory | 32 KB FRAM - provides 10¹⁵ write endurance and 125 ns/word fast write for firmware updates and meter log storage |
| Ultrasonic Sensing | Integrated USS_A subsystem with PPG, 4-Ω PHY, PGA, and 12-bit 8-MSPS SDHS ADC - eliminates external AFE components for single-chip meter design |
| Time Measurement | ±12.5-ps dToF accuracy (water), <5 ps resolution - meets ISO4064 Class B/C accuracy requirements without calibration drift compensation |
| Power Modes | LPM3.5 (RTC active): 450 nA; Active mode: ~120 µA/MHz - enables >10-year battery life in AMI water meters with 1-s measurement interval |
| Package | 80-pin LQFP (12 mm × 12 mm) - matches EVM430-FR6043 layout and supports high-density meter PCBs with integrated LCD drivers |
| Security | 128/256-bit AES coprocessor + IP encapsulation - protects firmware and metrology algorithms against reverse engineering and tampering |
Pinout & Package
80-pin LQFP (PN) package, 12 mm × 12 mm body size, 0.5-mm pitch. Pin functions validated per TI SLASEF5B datasheet Figures 7-1 and Table 7-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0_IN / CH1_IN | Ultrasonic echo input | Differential analog inputs to USS_A SDHS ADC - accept amplified transducer return signals with programmable PGA gain |
| CH0_OUT / CH1_OUT | Ultrasonic excitation output | Low-impedance (4 Ω) outputs from USS_A PHY - drive standard 2.5-MHz ultrasonic transducers directly without external drivers |
| USSXTIN / USSXTOUT | USS crystal interface | Connects to 8-MHz crystal for USS_A timing reference - enables sub-picosecond jitter performance critical for dToF accuracy |
| PJ.6 / PJ.7 | High-frequency crystal interface | HFXIN/HFXOUT pins for main system clock - support 4–24 MHz crystals for CPU and peripheral timing |
| P3.3 / P3.4 / P3.5 | System clock outputs | MCLK/SMCLK/ACLK outputs - provide traceable clock sources for external test equipment and synchronization |
| P4.0 / P4.1 | Metering test interface | MTIF_PIN_EN and MTIF_OUT_IN - enable pulse generation and counting for 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 count by ≥7 discrete components vs. discrete AFE solutions |
| Low-Energy Accelerator (LEA) | Hardware FFT engine sharing 8 KB RAM with CPU - processes 256-point complex FFT in <100 µs at 3 µA, freeing CPU for communication tasks |
| Metering Test Interface (MTIF) | 16-bit pulse counter with 1024 p/s max rate and 200 nA LPM3.5 current - enables field calibration and compliance testing without waking CPU |
| Ferroelectric RAM (FRAM) | 32 KB unified memory with 125 ns write speed and radiation tolerance - stores metrology logs, firmware patches, and configuration data with zero wear-out risk |
| Capacitive Touch I/O | All GPIO pins support CTSIO without external components - allows touch-enabled user interfaces on water/gas meter displays without added ICs |
Applications
| Ultrasonic Smart Water Meter | Ultrasonic Smart Gas Meter |
|---|---|
Use Scenario: Residential and commercial water metering with 500:1 dynamic range and leak detection down to <1 L/h. IC Role / Device Role / Timing Role: Primary metrology controller executing dToF measurement, temperature compensation, and data logging using integrated USS_A and LEA. Use Value: Achieves ±1% accuracy across full flow range while consuming only ~3 µA average current - extends lithium battery life beyond 15 years. | Use Scenario: Industrial gas metering compliant with EN 1434 and OIML R49, measuring flows >25,000 L/h with 200:1 range. IC Role / Device Role / Timing Role: High-precision flow calculator using ±250-ps dToF accuracy, integrated PGA for low-amplitude gas echoes, and MTIF for pulse output certification. Use Value: Eliminates external signal conditioning circuitry and meets Class 1.5 accuracy requirements without factory recalibration. |
| Ultrasonic Heat Meter | Flow Transmitter |
Use Scenario: District heating systems requiring simultaneous forward/reverse flow and temperature differential measurement. IC Role / Device Role / Timing Role: Dual-channel ultrasonic processor using CH0/CH1 paths for bidirectional transit-time measurement and integrated 12-bit SAR ADC for Pt1000 temperature sensing. Use Value: Enables compact, single-chip heat meter design with <0.5% thermal energy accuracy and EN 1434 Class 2 compliance. | Use Scenario: Industrial process control where raw flow data must be transmitted via Modbus RTU or M-Bus to SCADA systems. IC Role / Device Role / Timing Role: Protocol-aware edge node with dual eUSCI_A (UART) ports supporting automatic baud-rate detection and IrDA for wireless commissioning. Use Value: Reduces system latency by performing real-time flow calculation onboard and transmitting only calibrated values - avoids host-side DSP overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrasonic sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6043IPN | 64 KB FRAM (vs. 32 KB), same USS_A, LEA, and pinout - identical 80-pin LQFP package and peripheral set | Supports larger firmware images and extended data logging; no change to ultrasonic signal chain or power profile | Select when future firmware expansion or longer interval logging is required without PCB redesign |
| MSP430FR5041IPM | 64-pin LQFP (10 mm × 10 mm), no LCD driver, 7 external ADC channels (vs. 8), same USS_A and FRAM size | Smaller footprint for space-constrained gas meters; lacks integrated LCD_C driver used in display-equipped water meters | Select for compact gas meter designs where display is external or omitted, and board area is critical |
Compared with MSP430FR6043IPN, the MSP430FR6041IPN trades FRAM capacity for cost optimization while retaining identical ultrasonic metrology performance and package compatibility; versus MSP430FR5041IPM, it offers larger I/O count, LCD support, and mechanical compatibility with EVM430-FR6043 reference hardware.
Availability
MSP430FR6041IPN is available at Aetrix Electronics and suitable for ultrasonic smart water meters, smart gas meters, and heat metering systems requiring stable component supply, long-term lifecycle assurance, and TI-qualified metrology-grade silicon.
Supply support for MSP430FR6041IPN 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 applications.
The MSP430FR604x product line is designed specifically for ultrasonic flow measurement in utility metering, integrating precision analog front-ends, ultra-low-power operation, and metrology-certified signal processing capabilities.
FAQ
What is the primary metrology function of the MSP430FR6041IPN?
The MSP430FR6041IPN performs differential time-of-flight (dToF) ultrasonic flow measurement using its integrated USS_A subsystem. It generates excitation pulses via the programmable pulse generator (PPG), drives transducers through the 4-Ω PHY, amplifies return echoes with the PGA, and digitizes them with the 12-bit 8-MSPS sigma-delta ADC. This enables ±12.5-ps dToF accuracy for water and ±250-ps for gas, meeting ISO4064 and EN 14236 standards. The MSP430FR6041IPN handles all signal acquisition and timing-critical computation on-chip.
Does the MSP430FR6041IPN support LCD display driving?
Yes, the MSP430FR6041IPN includes an integrated LCD_C driver supporting up to 248 segments with static and 2–8 multiplex configurations. It features contrast control and direct segment mapping, enabling direct connection to common LCD glass used in utility meters without external display controllers. This capability is confirmed in the device comparison table (Table 6-1) and functional block diagram (Figure 4-1) of the SLASEF5B datasheet. The MSP430FR6041IPN uses this driver for local meter display in water and heat meter applications.
How does the Low-Energy Accelerator (LEA) improve ultrasonic signal processing in the MSP430FR6041IPN?
The LEA in the MSP430FR6041IPN accelerates digital signal processing tasks such as FFT, filtering, and correlation independently of the CPU. It shares 8 KB of RAM with the main processor and executes a 256-point complex FFT up to 40× faster than the Arm Cortex-M0+ core while consuming only ~3 µA. This allows the MSP430FR6041IPN to perform real-time flow calculation during ultrasonic echo processing without CPU intervention, reducing active-mode duration and extending battery life in metering applications.
What are the key power modes supported by the MSP430FR6041IPN for battery-operated meters?
The MSP430FR6041IPN supports multiple ultra-low-power modes essential for battery-powered meters: Active mode draws ~120 µA/MHz; Standby mode with RTC (LPM3.5) consumes 450 nA; and Shutdown mode (LPM4.5) draws just 30 nA. The MTIF module operates in LPM3.5 at 200 nA for pulse counting, and the USS_A subsystem can wake the device from LPM4.5 for measurement bursts. These modes enable multi-year operation on a single CR2477 coin cell, as verified in TI's EVM430-FR6043 test reports.
Is the MSP430FR6041IPN pin-compatible with other devices in the MSP430FR604x family?
Yes, the MSP430FR6041IPN is pin-compatible with MSP430FR6043IPN and MSP430FR60431IPN in the 80-pin LQFP (PN) package. All three share identical pinouts, electrical characteristics, and peripheral mappings per TI's Device Comparison table (Table 6-1) and Pin Diagram (Figure 7-1). This allows hardware reuse across variants - for example, a single PCB can support MSP430FR6041IPN for cost-sensitive deployments and MSP430FR6043IPN for higher FRAM requirements without layout changes.
MSP430FR6041IPN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430™ FRAM
- Packaging:
- Tray
- 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, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 57
- 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 10x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR6041IPN FAQ
1.How can I place an order for MSP430FR6041IPN through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6041IPN 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 MSP430FR6041IPN reliable?
The price and inventory of MSP430FR6041IPN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6041IPN is usually 5 days.
3.What payment methods are accepted for MSP430FR6041IPN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6041IPN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6041IPN?
MSP430FR6041IPN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6041IPN 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 MSP430FR6041IPN?
For technical support, including MSP430FR6041IPN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6041IPN requirements.
6.How does Aetrix verify that MSP430FR6041IPN is sourced from the original manufacturer or authorized distributors?
All MSP430FR6041IPN 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 MSP430FR6041IPN meets industry standards.
7.What is the process for return or replacement of MSP430FR6041IPN?
All MSP430FR6041IPN units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6041IPN, 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 MSP430FR6041IPN part is unused and in its original packaging.
Return procedure for MSP430FR6041IPN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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