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Texas Instruments MSP430F67771AIPEU
- Part No.:
- MSP430F67771AIPEU
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F67771AIPEU.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,517
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Product details
Overview
MSP430F67771AIPEU from Texas Instruments is a polyphase metering SoC designed for high-accuracy 3-phase energy measurement in utility-grade smart meters. It integrates seven 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 modules supporting UART/I²C/SPI. It meets ANSI C12.20 and IEC 62053 standards for revenue-grade metering.
For engineers reviewing the MSP430F67771AIPEU datasheet, MSP430F67771AIPEU pinout, MSP430F67771AIPEU application, or MSP430F67771AIPEU equivalent, key selection criteria include metrology ADC channel count, RTC tamper detection, pulse output capability for calibration, low-power LCD operation (3 µA in LPM3), and support for CT/Rogowski/shunt sensors in 3-phase 4-wire star configurations.
Technical Context
The MSP430F67771AIPEU implements a dedicated metrology subsystem with independent SD24_B modulators per phase, enabling simultaneous 4-quadrant active/reactive energy calculation across three phases plus neutral. Its real-time clock includes crystal offset calibration and temperature compensation to maintain timekeeping accuracy during mains failure.
Digital subsystem features include three-channel DMA for zero-CPU-load ADC data transfer, 16-bit CRC for firmware integrity, and four 16-bit timers with nine capture/compare registers-configured as TA0–TA3-for pulse generation, timing synchronization, and waveform analysis in metering firmware stacks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB single-cycle access - sufficient for full Energy Measurement Library + custom tariff logic + secure boot code |
| RAM | 32 KB single-cycle access - supports real-time accumulation buffers for multiple energy registers and harmonic analysis |
| Sigma-Delta ADCs | 7 × 24-bit SD24_B channels - enables concurrent measurement of 3-phase voltage/current + neutral + auxiliary sensors |
| ADC Accuracy | < 0.1% error over 2000:1 dynamic range - certified for Class 0.2 metering per IEC 62053-22 |
| Low-Power Mode (LPM3) | 2.1 µA at 3 V - allows >1 year battery backup for RTC/LCD during AC mains failure |
| LCD Driver | Up to 320 segments with contrast control - drives large-format utility display without external bias generator |
| eUSCI Interfaces | 4 × eUSCI_A (UART/IrDA/SPI) + 2 × eUSCI_B (SPI/I²C) - supports HAN, PLC, optical port, and sensor interface simultaneously |
Pinout & Package
The MSP430F67771AIPEU is housed in a 128-pin LQFP (PEU) package measuring 20 mm × 14 mm, with 90 general-purpose I/O pins and dedicated metrology analog inputs (SDxP/N, VREF, AVCC/AVSS), power domains (DVCC/DVSS, VASYS/VDYS), and LCD segment/common drivers (COM0–COM7, S0–S320).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0 / SD0N0 | Phase A current differential input | Direct connection to shunt or CT secondary for high-precision current sampling with programmable gain |
| VREF | Reference voltage input | Stable 1.2-V internal reference source for all 24-bit ADCs; supports external reference override |
| COM0–COM7 | LCD common outputs | Drive up to 8 multiplexed LCD commons; enable 320-segment display with minimal external components |
| P1.0 / P1.1 | VeREF− / VeREF+ | External voltage reference inputs for ADC10_A SAR converter - used for supply/temperature monitoring |
| RST/NMI/SBWTDIO | Reset / NMI / JTAG debug I/O | Single-pin multifunction interface for production programming, field firmware updates, and boundary-scan testing |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated pulse outputs | Separate active/reactive energy pulse pins (e.g., P1.6/COM2, P1.7/COM3) enable hardware-level calibration traceability without CPU intervention |
| Password-protected RTC | Real-time clock with tamper detection, crystal offset calibration, and temperature compensation ensures regulatory-compliant time stamping and anti-tamper logging |
| Digital phase correction | On-the-fly software correction of CT phase lag eliminates need for external analog compensation networks |
| Temperature-compensated energy | Integrated temperature sensor + algorithmic compensation maintains <0.1% accuracy across –40°C to +85°C operating range |
| Flexible power supply | Automatic switching between AC mains, supercapacitor, and coin-cell sources preserves metrology state during brownouts |
Applications
| 3-Phase Electronic Watt-Hour Meter | Smart Grid Distribution Transformer Monitor |
|---|---|
Use Scenario: Revenue-grade electricity billing in residential/commercial 3-phase 4-wire installations. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time active/reactive energy accumulation, harmonic analysis, and tariff switching. Use Value: Meets ANSI C12.20 Class 0.2 and IEC 62053-22 standards with on-chip 24-bit ADCs eliminating external precision op-amps and reference ICs. | Use Scenario: Continuous monitoring of transformer loading, voltage unbalance, and power quality at distribution substations. IC Role / Device Role / Timing Role: Standalone edge node collecting synchronized voltage/current waveforms and computing PQ metrics (THD, flicker, sag/swell). Use Value: Seven independent 24-bit ADCs allow simultaneous sampling of all three phases and neutral, enabling true vector-based power quality analysis. |
| Prepayment Smart Meter | Industrial Energy Management System |
Use Scenario: Pay-as-you-go electricity meters with local credit validation and LCD display. IC Role / Device Role / Timing Role: Full-system controller handling energy accounting, keypad/LCD interface, secure crypto operations, and RF/optical communication. Use Value: Integrated security modules (AES-128, SHA-256) and password-protected RTC prevent unauthorized credit manipulation and timestamp tampering. | Use Scenario: On-site energy dashboard for manufacturing plants tracking real-time kW/kWh per production line. IC Role / Device Role / Timing Role: Local data concentrator aggregating submeter readings via RS-485 (eUSCI_A) and reporting to SCADA via I²C-connected gateway. Use Value: Dual eUSCI_B modules support concurrent I²C sensor bus and isolated RS-485 communication without external transceivers. |
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, same 7-ADC metrology engine and peripherals | Supports larger firmware (e.g., DLMS/COSEM stack + OTA updates) without external memory | Select when future firmware expansion or advanced communication protocols require additional code space |
| MSP430F67771AIPZ | Same core specs but 100-pin LQFP (62 I/O), no SD4P0/SD4N0–SD6P0/SD6N0 pins | Reduced analog channel count limits to 4 SD24_B converters; suitable for 2-phase or simplified designs | Select when board space is constrained and full 7-ADC capability is not required |
Compared with MSP430F67791AIPEU, the MSP430F67771AIPEU trades 256 KB flash for identical metrology performance and I/O count-ideal for cost-optimized Class 0.2 meters. Against MSP430F67771AIPZ, it delivers full 7-ADC support and 90 I/Os in the larger PEU package, enabling direct upgrade paths in existing 128-pin layouts.
Availability
MSP430F67771AIPEU is available at Aetrix Electronics and suitable for 3-phase electronic watt-hour meters, utility distribution monitoring systems, and industrial energy management applications requiring stable component supply, long-term lifecycle support, and TI-qualified metrology performance.
Supply support for MSP430F67771AIPEU 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 for industrial, automotive, and consumer markets.
The MSP430F67771AIPEU belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for revenue-grade energy measurement in smart grid infrastructure where accuracy, ultra-low power, and regulatory compliance are mandatory.
FAQ
What metrology standards does the MSP430F67771AIPEU meet?
The MSP430F67771AIPEU meets or exceeds ANSI C12.20 and IEC 62053-22 Class 0.2 requirements for active energy measurement. Its 24-bit sigma-delta ADCs deliver <0.1% error over 2000:1 dynamic range, and integrated digital phase correction ensures compliance even with non-ideal current transformers. The MSP430F67771AIPEU's temperature-compensated design maintains this accuracy from –40°C to +85°C.
How many independent analog inputs does the MSP430F67771AIPEU support for 3-phase metering?
The MSP430F67771AIPEU supports seven independent 24-bit sigma-delta ADC channels (SD24_B), configured as three phase-current inputs (IA, IB, IC), three phase-voltage inputs (VA, VB, VN), and one neutral-current input (Ineutral). This enables full 3-phase 4-wire star topology measurement with simultaneous sampling and 4-quadrant energy calculation per phase-all within the MSP430F67771AIPEU.
Does the MSP430F67771AIPEU include hardware pulse outputs for calibration?
Yes, the MSP430F67771AIPEU provides dedicated hardware pulse output pins-including P1.6/COM2 and P1.7/COM3-for active and reactive energy calibration. These outputs generate precise, CPU-independent pulses proportional to accumulated energy, meeting ANSI C12.20 pulse-per-kWh requirements. The MSP430F67771AIPEU's pulse generation is fully configurable in firmware for different meter constants and tariff modes.
What low-power modes are available on the MSP430F67771AIPEU for battery-backed operation?
The MSP430F67771AIPEU offers LPM3 (standby mode) at 2.1 µA, LPM3.5 (RTC-only mode) at 0.34 µA, and LPM4.5 (shutdown mode) at 0.18 µA-all at 3 V. In LPM3, the LCD continues operating at 3 µA, enabling visible time/date display during AC mains failure. These modes ensure >1 year operation on a CR2032 coin cell, preserving metrology registers and RTC functionality throughout outages-critical for the MSP430F67771AIPEU's utility deployment.
Can the MSP430F67771AIPEU drive a large LCD display without external components?
Yes, the MSP430F67771AIPEU integrates a full LCD controller supporting up to 320 segments with programmable contrast, internal charge pump, and 8 commons (COM0–COM7). It drives standard multiplexed LCD glass directly-no external bias generator, resistors, or capacitors required. This reduces BOM cost and PCB area while maintaining readability across temperature, making it ideal for utility meter displays powered by the MSP430F67771AIPEU's integrated driver.
MSP430F67771AIPEU 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, 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:
MSP430F67771AIPEU FAQ
1.How can I place an order for MSP430F67771AIPEU through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F67771AIPEU 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 MSP430F67771AIPEU reliable?
The price and inventory of MSP430F67771AIPEU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F67771AIPEU is usually 5 days.
3.What payment methods are accepted for MSP430F67771AIPEU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F67771AIPEU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F67771AIPEU?
MSP430F67771AIPEU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F67771AIPEU 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 MSP430F67771AIPEU?
For technical support, including MSP430F67771AIPEU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F67771AIPEU requirements.
6.How does Aetrix verify that MSP430F67771AIPEU is sourced from the original manufacturer or authorized distributors?
All MSP430F67771AIPEU 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 MSP430F67771AIPEU meets industry standards.
7.What is the process for return or replacement of MSP430F67771AIPEU?
All MSP430F67771AIPEU units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F67771AIPEU, 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 MSP430F67771AIPEU part is unused and in its original packaging.
Return procedure for MSP430F67771AIPEU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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