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Texas Instruments MSP430F67771AIPEUR
- Part No.:
- MSP430F67771AIPEUR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F67771AIPEUR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,969
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Product details
Overview
MSP430F67771AIPEUR from Texas Instruments is a polyphase metering SoC designed for high-accuracy 3-phase energy measurement in utility-grade electricity meters. It integrates seven independent 24-bit sigma-delta ADCs (±0.1% accuracy over 2000:1 dynamic range), a 25-MHz CPU with 32-bit multiplier, 256KB flash/32KB RAM, LCD controller (320 segments), and dual eUSCI_A/B interfaces for UART/I²C/SPI. It supports ANSI C12.20 and IEC 62053 compliance in 3-phase 4-wire star-connected smart meters.
For engineers reviewing the MSP430F67771AIPEUR datasheet, MSP430F67771AIPEUR pinout, MSP430F67771AIPEUR application, or MSP430F67771AIPEUR equivalent, key selection criteria include its 7-channel SD24_B ADC architecture, RTC with tamper detection, ultra-low-power LPM3.5 mode (0.34 µA), and 128-pin LQFP package with 90 GPIOs - all critical for metrology firmware validation, calibration traceability, and EOL test fixture design.
Technical Context
The MSP430F67771AIPEUR implements a dedicated metrology subsystem with seven synchronized 24-bit sigma-delta modulators feeding independent digital filters, enabling simultaneous phase current/voltage sampling across three phases plus neutral. Its SD24_B module supports programmable gain, offset calibration, and digital phase correction for CT-based sensing.
Power management includes automatic supply switching between AC mains and backup battery, with LCD operation at 3 µA in LPM3 and RTC retention at 0.34 µA in LPM3.5. The device uses a dual-domain power architecture: AVCC/AVSS for analog precision, DVCC/DVSS for digital logic, and separate VASYS/VDSYS rails requiring external board-level connection per TI specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB single-cycle flash - sufficient for full metrology library, secure bootloader, and field-upgradable firmware without external storage. |
| RAM | 32 KB single-cycle RAM - supports real-time accumulation of active/reactive energy, harmonic analysis buffers, and RTC-critical data retention. |
| Sigma-Delta ADCs | 7 × 24-bit SD24_B channels - enables concurrent sampling of 3-phase voltage/current + neutral current with <0.1% error over 2000:1 dynamic range. |
| CPU Speed | 25 MHz MSP430 core with 32-bit hardware multiplier - executes ANSI/IEC-compliant metrology algorithms (e.g., RMS, THD, PF) within line-cycle timing constraints. |
| Low-Power Mode LPM3.5 | 0.34 µA at 3 V - maintains RTC, tamper detection, and crystal calibration during AC failure, extending battery life to >10 years. |
| LCD Driver | 320-segment bias-controlled LCD - drives multi-line utility meter displays without external segment drivers, reducing BOM cost. |
| eUSCI Interfaces | 4 × eUSCI_A (UART/IrDA/SPI) + 2 × eUSCI_B (SPI/I²C) - supports HAN communication (M-Bus, DLMS), PLC modem interface, and sensor expansion. |
Pinout & Package
Package: 128-pin LQFP (PEU), 20 mm × 14 mm body size, 0.5 mm pitch, 90 usable I/O pins. Thermal pad exposed on underside per TI mechanical drawing SLAS983A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0/SD0N0–SD6P0/SD6N0 | Differential inputs for SD24_B ADC channels 0–6 | Accepts ±2.5 V differential signals from CT/shunt sensors; internal PGA supports 1×/4×/16×/64× gain for wide dynamic range. |
| VREF | Reference voltage input | External 2.5 V reference for SD24_B modulators; enables ratiometric measurement and eliminates internal reference drift impact on accuracy. |
| COM0–COM7 | LCD common outputs | Drives up to 8 commons in static/multiplexed LCD configuration; supports 320-segment display with software-controlled contrast. |
| RST/NMI/SBWTDIO | Reset, NMI, and JTAG debug I/O | Single-pin multifunction interface for production programming, boundary-scan testing, and secure firmware update via Spy-Bi-Wire. |
| VASYS1/VASYS2, VDSYS1/VDSYS2 | Analog/digital system supply pairs | Must be externally shorted on PCB per TI requirement; ensures proper domain isolation and noise immunity for metrology-grade analog performance. |
Key Features
| Feature | Design Value |
|---|---|
| ANSI C12.20 / IEC 62053 Compliance | Fully validated metrology engine meets Class 0.2 accuracy requirements for revenue-grade billing without external calibration ICs. |
| Password-Protected RTC with Tamper Detection | Hardware-enforced access control prevents unauthorized clock manipulation; detects enclosure breach, magnetic interference, and voltage glitch attacks. |
| Dedicated Pulse Output Pins | Two hardware pulse generators (active/reactive energy) provide calibrated kWh/kVARh outputs compatible with mechanical register interfaces and optical couplers. |
| Temperature-Compensated Energy Measurement | On-chip temperature sensor and compensation algorithm corrects ADC gain/offset drift across –40°C to +85°C operating range. |
| 40–70 Hz Line Frequency Adaptation | Automatic frequency tracking and single-point calibration eliminate need for per-frequency firmware variants in global deployments. |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Installed in residential/commercial 3-phase 4-wire utility meters for kWh billing and demand response. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time RMS, fundamental power, harmonics, and tariff calculation every 100 ms. Use Value: Enables Class 0.2 accuracy with single-chip integration, eliminating external ADCs, op-amps, and calibration DACs - reducing BOM by ≥30%. |
Use Scenario: Embedded in industrial submetering panels for tenant-level energy allocation and power quality logging. IC Role / Device Role / Timing Role: High-resolution data acquisition node capturing voltage sag/swell events, THD, and unbalance metrics at 16 kS/s aggregate rate. Use Value: Seven synchronized SD24_B channels allow simultaneous sampling of all phase voltages and currents, ensuring time-aligned waveform reconstruction. |
| Anti-Tamper Utility Meter | Smart Grid Edge Node |
Use Scenario: Deployed in tamper-prone outdoor meter installations with magnetic, RF, and physical intrusion monitoring. IC Role / Device Role / Timing Role: Security co-processor managing RTC tamper flags, secure boot, password-protected registers, and encrypted firmware updates. Use Value: Integrated tamper detection logic (voltage, temperature, clock, enclosure) reduces need for discrete security ICs and simplifies UL 2735 certification. |
Use Scenario: Gateway node aggregating data from multiple meters via M-Bus or RF mesh before forwarding to AMI concentrator. IC Role / Device Role / Timing Role: Communication hub using eUSCI_B0/B1 for I²C sensor interface and eUSCI_A0/A1 for UART-based M-Bus physical layer. Use Value: Dual eUSCI_B modules support concurrent I²C sensor reads and SPI flash access, enabling zero-latency data buffering during radio transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F67791AIPEU | 512 KB flash, 32 KB RAM, identical SD24_B count and metrology features | Supports larger firmware (e.g., DLMS/COSEM stack + OTA updates) without external memory | Select when future-proofing for advanced communication protocols or extended feature sets beyond base metrology. |
| MSP430F67671AIPEU | 6 SD24_B channels, 256 KB flash, 32 KB RAM, no SD6P0/SD6N0 pins | Limited to 2-phase + neutral or 3-phase without neutral current monitoring | Choose for cost-sensitive 2-phase meter designs where neutral current measurement is not required per local utility spec. |
Compared with MSP430F67791AIPEU, the MSP430F67771AIPEUR offers balanced flash/RAM for certified metrology firmware while retaining full 7-channel sensing; versus MSP430F67671AIPEU, it adds the sixth SD24_B channel needed for true 3-phase+neutral compliance in ANSI C12.20 Annex A configurations.
Availability
MSP430F67771AIPEUR is available at Aetrix Electronics and suitable for smart electricity meters, revenue-grade energy monitors, anti-tamper utility meters, and smart grid edge nodes requiring stable component supply across multi-year production cycles.
Supply support for MSP430F67771AIPEUR 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 over 50 years of innovation in precision measurement and low-power systems.
The MSP430F67771AIPEUR belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for high-accuracy, low-power energy measurement in smart grid infrastructure and utility metering applications.
FAQ
What is the maximum sampling rate supported by the SD24_B ADCs in MSP430F67771AIPEUR?
The MSP430F67771AIPEUR SD24_B module supports up to 256 kSPS aggregate throughput across all seven channels. Each 24-bit sigma-delta converter operates at programmable data rates from 125 SPS to 32 kSPS per channel, with synchronous sampling enabled via shared MODCLK - essential for phase-coherent 3-phase waveform capture required by IEC 62053-22.
Does MSP430F67771AIPEUR support hardware-accelerated metrology calculations?
Yes, the MSP430F67771AIPEUR includes a dedicated 32-bit hardware multiplier integrated into its 25-MHz CPU, enabling cycle-accurate execution of RMS, active/reactive power, fundamental frequency, and harmonic analysis per ANSI C12.20 Annex B. This eliminates reliance on software-only math libraries and guarantees deterministic timing for line-cycle measurements.
How does the MSP430F67771AIPEUR handle power supply failure during meter operation?
Upon AC mains loss, the MSP430F67771AIPEUR automatically switches to backup battery supply and enters LPM3.5 mode (0.34 µA), preserving RTC time, tamper flags, and critical energy registers. The LCD remains functional at 3 µA in LPM3, allowing display of remaining battery life and last-valid kWh reading - meeting ANSI C12.1-2017 battery-backup duration requirements.
Can MSP430F67771AIPEUR drive a 4-mux LCD with 320 segments without external components?
Yes, the integrated LCD_C peripheral in MSP430F67771AIPEUR supports static, 2/3/4-mux configurations up to 320 segments using only internal charge pumps and COM/SEG drivers. No external capacitors or bias resistors are required for basic operation, though contrast tuning via LCDCAP pin allows optimization for varying temperature and viewing angles.
What communication interfaces are available on MSP430F67771AIPEUR for smart meter data export?
The MSP430F67771AIPEUR provides six eUSCI modules: four eUSCI_A (UART/IrDA/SPI) and two eUSCI_B (SPI/I²C). These support standard smart meter interfaces including optical probe UART (IEC 62056-21), M-Bus physical layer (via UART + external transceiver), I²C-connected temperature/humidity sensors, and SPI-connected secure elements or FRAM for tamper logs.
MSP430F67771AIPEUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 128-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tape & Reel (TR)
- 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, 7x24b 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:
MSP430F67771AIPEUR FAQ
1.How can I place an order for MSP430F67771AIPEUR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F67771AIPEUR 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 MSP430F67771AIPEUR reliable?
The price and inventory of MSP430F67771AIPEUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F67771AIPEUR is usually 5 days.
3.What payment methods are accepted for MSP430F67771AIPEUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F67771AIPEUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F67771AIPEUR?
MSP430F67771AIPEUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F67771AIPEUR 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 MSP430F67771AIPEUR?
For technical support, including MSP430F67771AIPEUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F67771AIPEUR requirements.
6.How does Aetrix verify that MSP430F67771AIPEUR is sourced from the original manufacturer or authorized distributors?
All MSP430F67771AIPEUR 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 MSP430F67771AIPEUR meets industry standards.
7.What is the process for return or replacement of MSP430F67771AIPEUR?
All MSP430F67771AIPEUR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F67771AIPEUR, 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 MSP430F67771AIPEUR part is unused and in its original packaging.
Return procedure for MSP430F67771AIPEUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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