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Texas Instruments MSP430F67471AIPEU
- Part No.:
- MSP430F67471AIPEU
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F67471AIPEU.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,897
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Product details
Overview
MSP430F67471AIPEU from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring four independent 24-bit sigma-delta ADCs, 256KB flash, 32KB RAM, and ultra-low-power operation (0.18 µA in LPM4.5). It supports ANSI C12.20 and IEC 62053 compliance, 4-quadrant energy measurement, and integrated LCD driver for up to 320 segments.
For engineers reviewing the MSP430F67471AIPEU datasheet, MSP430F67471AIPEU pinout, MSP430F67471AIPEU application, or MSP430F67471AIPEU equivalent, key selection criteria include metrology-grade ADC channel count, RTC tamper detection, pulse output capability for active/reactive energy calibration, and 128-pin LQFP package compatibility with existing meter PCB layouts.
Technical Context
The MSP430F67471AIPEU implements a dedicated metrology subsystem with four SD24_B sigma-delta modulators optimized for current transformer, Rogowski coil, or shunt-based sensing across three phases plus neutral. Its CPU performs real-time energy calculations using a 32-bit hardware multiplier, while the RTC module includes crystal offset calibration and temperature compensation for time-of-use billing accuracy.
Digital interfaces include four eUSCI_A modules (UART/IrDA/SPI) and two eUSCI_B modules (SPI/I²C), enabling simultaneous communication with PLC, RF, or optical modules. Power management supports automatic supply switching between AC mains and backup battery, with LCD operation at 3 µA in LPM3 during mains failure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 24-bit sigma-delta (SD24_B) with differential inputs and programmable gain - enables <0.1% error over 2000:1 dynamic range for phase current measurement |
| Flash / RAM | 256KB flash / 32KB RAM - sufficient for full ANSI/IEC-compliant metrology firmware, calibration tables, and secure bootloader storage |
| Low-Power Modes | LPM4.5 shutdown current = 0.18 µA at 3 V - extends battery life during AC mains outage without losing RTC or critical state |
| LCD Driver | Supports up to 320 segments with contrast control - eliminates external LCD controller in cost-sensitive utility meter designs |
| RTC Security | Password-protected RTC with tamper detection and crystal offset calibration - meets anti-tamper requirements for revenue-grade metering |
| Communication | 4 × eUSCI_A (UART/IrDA/SPI) + 2 × eUSCI_B (SPI/I²C) - allows concurrent HAN, WAN, and debug interface connectivity |
| Supply Range | 1.8 V to 3.6 V - compatible with both single-cell Li-ion and regulated 3.3 V meter power rails |
Pinout & Package
The MSP430F67471AIPEU is housed in a 128-pin LQFP (PEU) package measuring 20 mm × 14 mm, with 90 GPIO pins and dedicated metrology analog inputs including SD0P0/SD0N0 through SD3P0/SD3N0 for four sigma-delta channels.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0 / SD0N0 | Sigma-delta ADC Channel 0 differential input | Accepts shunt or CT-derived voltage for Phase A current measurement with 24-bit resolution |
| SD1P0 / SD1N0 | Sigma-delta ADC Channel 1 differential input | Accepts shunt or CT-derived voltage for Phase B current measurement |
| SD2P0 / SD2N0 | Sigma-delta ADC Channel 2 differential input | Accepts shunt or CT-derived voltage for Phase C current measurement |
| SD3P0 / SD3N0 | Sigma-delta ADC Channel 3 differential input | Accepts shunt or CT-derived voltage for Neutral current measurement |
| VREF | Reference voltage input | Provides stable reference for all SD24_B converters; supports external precision reference or internal buffered source |
| COM0–COM7 | LCD common outputs | Drive up to 8 multiplexed LCD commons for segment-based display with built-in contrast control |
| P1.0 / P1.1 | Analog inputs (VeREF− / VeREF+) | Support external reference configuration or internal temperature sensor measurement |
| RST/NMI/SBWTDIO | Reset / NMI / JTAG debug I/O | Enables boundary-scan debugging, firmware updates, and system reset under fault conditions |
Key Features
| Feature | Design Value |
|---|---|
| 4-Quadrant Energy Measurement | Accurately computes active/reactive energy in all quadrants per phase - essential for bidirectional grid-tied metering and net metering applications |
| Digital Phase Correction | Compensates CT-induced phase shift in software using calibrated coefficients - eliminates need for external analog correction circuitry |
| Temperature-Compensated Metrology | Integrates on-die temperature sensor and applies real-time gain/offset correction to ADC results - maintains <0.1% accuracy across –40°C to +85°C |
| Pulse Output Pins | Dedicated hardware outputs for active and reactive energy pulses - simplifies calibration traceability and enables direct LED or optocoupler interfacing |
| Single Calibration Across 40–70 Hz | Validated performance across full line frequency range without recalibration - reduces manufacturing test time and field deployment complexity |
Applications
| Smart Electricity Meter | Revenue-Grade Submeter |
|---|---|
Use Scenario: Installed as the primary metrology engine in a 3-phase 4-wire residential or commercial smart meter. IC Role / Device Role / Timing Role: Performs real-time 24-bit sampling of phase/neutral currents and line voltages, calculates kWh/kVARh, manages RTC-based time-of-use registers, and drives LCD display. Use Value: Meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S accuracy requirements with no external precision op-amps or reference ICs. | Use Scenario: Embedded in panel-mounted submeters for tenant-level energy monitoring in multi-tenant buildings. IC Role / Device Role / Timing Role: Aggregates per-circuit consumption data, stores 30-day history in flash, and communicates via UART to building BMS over RS-485. Use Value: Enables accurate tenant billing with tamper-proof RTC logging and secure firmware update capability via eUSCI_A. |
| Grid Edge Monitoring Node | Energy Audit Gateway |
Use Scenario: Deployed in distribution transformer monitoring units to track voltage sags, harmonics, and unbalance. IC Role / Device Role / Timing Role: Samples all three phase voltages and neutral current at high resolution, computes RMS, THD, and power factor, and triggers event logs with timestamp. Use Value: Provides sub-cycle waveform capture capability using DMA-driven SD24_B buffers - eliminates need for external FPGA or DSP co-processor. | Use Scenario: Integrated into portable energy audit tools used by facility engineers to characterize load profiles over 72-hour periods. IC Role / Device Role / Timing Role: Logs active/reactive energy, voltage, and current waveforms to internal flash; powers LCD and USB-UART bridge from rechargeable battery. Use Value: Achieves >14-day battery life in LPM3.5 mode (0.34 µA) while retaining RTC and 32KB SRAM retention - enables unattended long-term logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F67471AIPZ | Same core metrology IP and firmware compatibility, but in 100-pin LQFP (62 I/O) with reduced analog pin count | Suitable for space-constrained designs where fewer ADC channels or LCD segments are required | Select when board layout density is critical and full 90-I/O capability is unnecessary |
| MSP430F67671AIPEU | 6 SD24_B channels instead of 4; identical package, memory, and peripheral set otherwise | Required for 4-wire delta configurations or dual-metering applications needing extra current sensing paths | Choose when additional sigma-delta channel count is needed for enhanced topology support |
Compared with MSP430F67471AIPZ, the MSP430F67471AIPEU offers higher I/O count and full metrology pin availability; versus MSP430F67671AIPEU, it trades two SD24_B channels for lower cost and power in standard 3-phase+neutral deployments.
Availability
MSP430F67471AIPEU is available at Aetrix Electronics and suitable for smart electricity meters, revenue-grade submeters, grid edge monitoring nodes, and portable energy audit gateways requiring stable component supply and long-term industrial lifecycle support.
Supply support for MSP430F67471AIPEU 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 and embedded processing solutions for industrial, automotive, and communications markets.
The MSP430F67471AIPEU belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for high-accuracy, low-power energy measurement in utility-grade metering systems compliant with ANSI and IEC standards.
FAQ
What metrology standards does the MSP430F67471AIPEU support?
The MSP430F67471AIPEU meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S accuracy requirements across a 2000:1 dynamic range and 40–70 Hz line frequency range. Its four 24-bit sigma-delta ADCs, digital phase correction, and temperature-compensated energy calculation engine enable certified revenue-grade performance without external calibration components - a core design objective validated in TI's MSP430F67471AIPEU reference implementations.
How many independent sigma-delta ADC channels does the MSP430F67471AIPEU provide?
The MSP430F67471AIPEU integrates four independent 24-bit sigma-delta ADC channels (SD0–SD3) with differential inputs and programmable gain. Each channel supports dedicated current sensing for Phase A, Phase B, Phase C, and Neutral in 3-phase 4-wire metering topologies - confirmed in the device comparison table and pin function documentation for the MSP430F67471AIPEU PEU package.
What is the lowest power consumption mode supported by the MSP430F67471AIPEU?
The MSP430F67471AIPEU achieves 0.18 µA in LPM4.5 (shutdown mode) at 3 V with RTC retention, making it suitable for battery-backed operation during AC mains failure. This value is specified in Section 5.5 of the SLAS983A datasheet and enables >1-year backup runtime with typical coin-cell batteries - a key enabler for uninterrupted time-of-use billing in the MSP430F67471AIPEU-based meter design.
Does the MSP430F67471AIPEU include an integrated LCD controller?
Yes, the MSP430F67471AIPEU includes a fully integrated LCD_C peripheral supporting up to 320 segments with software-configurable bias, frame frequency, and contrast control. It drives COM0–COM7 and SEG0–SEG319 directly, eliminating external LCD drivers in utility meter displays - a feature explicitly listed in the MSP430F67471AIPEU device overview and functional block diagram.
What communication interfaces are available on the MSP430F67471AIPEU?
The MSP430F67471AIPEU provides six enhanced universal serial communication interfaces: four eUSCI_A modules supporting UART, IrDA, and SPI; and two eUSCI_B modules supporting SPI and I²C. These allow concurrent connectivity to PLC modems, RF transceivers, optical ports, and debug tools - verified in Table 3-1 (Device Comparison) and Section 4.2 (Signal Descriptions) of the MSP430F67471AIPEU datasheet.
MSP430F67471AIPEU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 128-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT, 4x24b Sigma Delta Converter
- Number of I/O:
- 90
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F67471AIPEU FAQ
1.How can I place an order for MSP430F67471AIPEU through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F67471AIPEU 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 MSP430F67471AIPEU reliable?
The price and inventory of MSP430F67471AIPEU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F67471AIPEU is usually 5 days.
3.What payment methods are accepted for MSP430F67471AIPEU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F67471AIPEU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F67471AIPEU?
MSP430F67471AIPEU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F67471AIPEU 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 MSP430F67471AIPEU?
For technical support, including MSP430F67471AIPEU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F67471AIPEU requirements.
6.How does Aetrix verify that MSP430F67471AIPEU is sourced from the original manufacturer or authorized distributors?
All MSP430F67471AIPEU 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 MSP430F67471AIPEU meets industry standards.
7.What is the process for return or replacement of MSP430F67471AIPEU?
All MSP430F67471AIPEU units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F67471AIPEU, 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 MSP430F67471AIPEU part is unused and in its original packaging.
Return procedure for MSP430F67471AIPEU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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