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Texas Instruments MSP430F6777IPEUR
- Part No.:
- MSP430F6777IPEUR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F6777IPEUR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,742
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Product details
Overview
MSP430F6777IPEUR from Texas Instruments is a polyphase metering SoC designed for revenue-grade 3-phase electronic watt-hour meters. It integrates seven 24-bit sigma-delta ADCs, 256KB flash, 32KB RAM, LCD controller (320-segment), AES-128 encryption, and real-time clock with temperature compensation - delivering <0.1% energy measurement accuracy over 2000:1 dynamic range per phase in utility metering applications.
For engineers reviewing the MSP430F6777IPEUR datasheet, MSP430F6777IPEUR pinout, MSP430F6777IPEUR application, or MSP430F6777IPEUR equivalent, key selection criteria include ANSI C12.20/IEC 62053 compliance, ultra-low-power LPM3.5 mode (0.34 µA), 128-pin LQFP package with 90 GPIOs, and support for CT/Rogowski/shunt current sensing across three phases plus neutral.
Technical Context
The MSP430F6777IPEUR implements a dedicated metering signal chain with seven independent SD24_B sigma-delta modulators - six for phase/neutral current and voltage inputs, one for auxiliary monitoring - each with programmable gain and differential input. Its 25-MHz MSP430 CPU executes TI's certified energy measurement library to compute active/reactive/apparent energy, power factor, and harmonics in real time.
Power management includes dual-domain supply architecture (AVCC/DVCC/VCORE), automatic mains-backup switching, and hardware-accelerated AES-128 for secure firmware updates and tariff data protection. The device supports four-quadrant energy measurement, digital phase correction for CTs, and single calibration across 40–70 Hz line frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB - sufficient for full metering firmware, communication stacks (DLMS/IEC 62056), and tariff tables with field-upgrade capability. |
| RAM | 32 KB - enables real-time accumulation of multi-tariff energy registers, waveform capture buffers, and secure crypto operations. |
| Sigma-Delta ADCs | 7 × 24-bit - supports simultaneous sampling of 3-phase voltage/current + neutral current + auxiliary channel, meeting Class 0.2 accuracy requirements. |
| Supply Current (LPM3.5) | 0.34 µA at 3 V - ensures >10-year battery life for RTC and critical data retention during AC mains failure. |
| LCD Driver | Up to 320 segments - drives high-contrast, multiplexed displays without external bias circuitry in smart meter front panels. |
| Communication Interfaces | 4 UART, 6 SPI, 2 I²C - configurable for PLC, RF (sub-GHz), optical port, and HAN connectivity in AMI deployments. |
| Operating Temperature | –40°C to +85°C - qualified for outdoor meter enclosures and industrial environments per IEC 62052-11. |
Pinout & Package
Package: 128-pin LQFP (PEU), 20 mm × 14 mm body size, industrial temperature grade (–40°C to +85°C). Pin mapping validated per TI SLAS768E datasheet Section 4.1 (Figure 4-1) and Table 4-3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN / XOUT | Low-frequency crystal oscillator input/output | Supports 32.768-kHz watch crystal for RTC with ±5 ppm stability; enables crystal offset calibration and temperature compensation. |
| SD0P0–SD6N0 | Differential analog inputs for sigma-delta modulators | Seven dedicated pairs for direct connection to CT secondary windings, shunt resistors, or voltage dividers - no external op-amps required. |
| COM0–COM7 | LCD common outputs | Eight commons drive up to 320-segment LCD with software-controlled contrast; eliminates need for external LCD bias generator. |
| AUXVCC1–AUXVCC3 | Backup subsystem supplies | Independent low-noise rails power RTC, backup RAM, and tamper detection circuitry during main supply loss. |
| P1.0–P1.7, P2.0–P2.7, etc. | General-purpose I/O with peripheral multiplexing | 90 GPIOs with configurable drive strength, Schmitt-trigger inputs, and wake-up capability from all LPMs - supports LED indicators, pulse outputs, and sensor interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| ANSI C12.20 & IEC 62053 compliance | Validated metrology engine meets Class 0.2 accuracy for active/reactive energy under varying load, temperature, and frequency conditions. |
| Digital phase correction | Hardware-assisted compensation for CT phase shift eliminates manual calibration steps and improves power factor accuracy at light loads. |
| Password-protected RTC | Secure real-time clock with tamper-detect pins and crystal calibration registers prevents unauthorized time manipulation in revenue-critical applications. |
| Four-quadrant energy measurement | Simultaneous forward/reverse active and reactive energy calculation per phase - essential for net metering and bidirectional grid interconnection. |
| Ultra-low-power standby (LPM3) | 2.1 µA at 3 V with RTC running enables >5-year coin-cell operation for cold-start recovery and event logging without mains power. |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Installed in residential/commercial 3-phase 4-wire service entrances to measure kWh/kVArh for billing and demand response. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time energy computation, tariff switching, secure data storage, and optical/PLC communication. Use Value: Eliminates external ADCs, RTC, crypto ICs, and display drivers - reducing BOM cost by ≥30% while maintaining ANSI/IEC certification. | Use Scenario: Embedded in industrial submetering panels to track energy consumption per production line or HVAC zone. IC Role / Device Role / Timing Role: High-accuracy energy aggregator with harmonic analysis, thermal derating compensation, and Modbus RTU over UART. Use Value: Delivers 0.1% error at 10 mA–20 A (2000:1 range) without recalibration, enabling predictive maintenance via long-term load profiling. |
| AMI Endpoint Node | Tamper-Resistant Utility Meter |
Use Scenario: Core processor in cellular/NB-IoT-connected smart meters transmitting hourly consumption data to cloud platforms. IC Role / Device Role / Timing Role: Secure host MCU executing DLMS/COSEM stack, AES-128 encrypted firmware updates, and time-synchronized pulse logging. Use Value: Integrated hardware crypto engine achieves 10× faster encryption than software-only implementations - critical for OTA update latency and security compliance. | Use Scenario: Revenue meter deployed in unattended outdoor locations vulnerable to magnetic, thermal, and physical tampering. IC Role / Device Role / Timing Role: Tamper-aware SoC monitoring case intrusion, strong magnetic fields, rapid temperature change, and supply voltage anomalies. Use Value: On-chip tamper detect logic triggers immediate non-volatile event logging and zeroizes sensitive keys - satisfying IEC 62053-31 security requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6779IPEUR | 512 KB flash, 32 KB RAM, 7 SD24_B ADCs - identical peripheral set but higher memory capacity. | Preferred for meters requiring extensive firmware features (e.g., multi-protocol stacks, large tariff tables, waveform recording). | Select when future firmware expansion headroom or extended data logging is required; same pinout and code compatibility. |
| MSP430F6777IPZ | Same core specs but 100-pin LQFP (PZ) package with 62 I/Os and reduced thermal mass. | Better suited for space-constrained designs where fewer GPIOs and smaller PCB footprint are prioritized over LCD segment count. | Choose for compact meter designs with ≤62 GPIO needs and no 320-segment LCD requirement; shares identical firmware and metrology performance. |
Compared with MSP430F6779IPEUR, the MSP430F6777IPEUR offers optimized cost/performance for mid-tier meters with full feature support but less memory headroom; versus MSP430F6777IPZ, it delivers higher I/O count and LCD capability in the larger 128-pin package - critical for feature-rich front-panel interfaces.
Availability
MSP430F6777IPEUR is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, and AMI endpoint node development requiring stable component supply, long lifecycle assurance, and TI-qualified metrology performance.
Supply support for MSP430F6777IPEUR 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 decades of utility metering domain expertise.
The MSP430F677x product line was engineered specifically for polyphase revenue metering - integrating metrology-grade ADCs, secure firmware execution, and ultra-low-power operation to replace discrete metering solutions with single-chip reliability.
FAQ
What metrology standards does the MSP430F6777IPEUR comply with?
The MSP430F6777IPEUR meets or exceeds ANSI C12.20 and IEC 62053-21/22/23 standards for active and reactive energy measurement accuracy. Its sigma-delta ADC architecture and on-chip calibration routines ensure Class 0.2 performance across temperature, line frequency (40–70 Hz), and dynamic range (2000:1) - verified in TI's certified test reports for the MSP430F6777IPEUR device family.
Does the MSP430F6777IPEUR support four-quadrant energy measurement?
Yes, the MSP430F6777IPEUR supports true four-quadrant energy measurement per phase - calculating forward/reverse active (kWh) and reactive (kVArh) energy simultaneously. This capability is implemented in hardware within the SD24_B modulators and energy computation engine, enabling net metering, bidirectional grid interconnection, and tariff differentiation based on power flow direction - all without additional firmware overhead.
What is the lowest power mode available on the MSP430F6777IPEUR and its typical current draw?
The MSP430F6777IPEUR supports LPM4.5 (shutdown mode) drawing 0.18 µA at 3 V, and LPM3.5 (RTC mode) drawing 0.34 µA at 3 V. LPM3.5 retains RTC operation, backup RAM, and tamper-detect functionality - making it the lowest practical mode for mains-failure operation in revenue meters, enabling >10-year coin-cell battery life for timekeeping and event logging.
How many independent sigma-delta ADC channels does the MSP430F6777IPEUR integrate?
The MSP430F6777IPEUR integrates seven independent 24-bit sigma-delta ADC modules (SD24_B). Six are allocated for primary metering - three phase voltages, three phase currents, and neutral current - while the seventh serves auxiliary functions such as temperature sensing, supply monitoring, or anti-tamper diagnostics. Each channel supports differential inputs, programmable gain, and built-in offset calibration.
Is the MSP430F6777IPEUR pin-compatible with other devices in the F677x family?
Yes, the MSP430F6777IPEUR is pin-compatible with all 128-pin LQFP (PEU) variants in the MSP430F677x family, including MSP430F6779IPEUR, MSP430F6778IPEUR, and MSP430F6776IPEUR. They share identical pinouts, power domains, and peripheral mappings - enabling hardware reuse across meter tiers while scaling flash/RAM resources via firmware configuration.
MSP430F6777IPEUR 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:
MSP430F6777IPEUR FAQ
1.How can I place an order for MSP430F6777IPEUR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6777IPEUR 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 MSP430F6777IPEUR reliable?
The price and inventory of MSP430F6777IPEUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6777IPEUR is usually 5 days.
3.What payment methods are accepted for MSP430F6777IPEUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6777IPEUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6777IPEUR?
MSP430F6777IPEUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6777IPEUR 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 MSP430F6777IPEUR?
For technical support, including MSP430F6777IPEUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6777IPEUR requirements.
6.How does Aetrix verify that MSP430F6777IPEUR is sourced from the original manufacturer or authorized distributors?
All MSP430F6777IPEUR 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 MSP430F6777IPEUR meets industry standards.
7.What is the process for return or replacement of MSP430F6777IPEUR?
All MSP430F6777IPEUR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6777IPEUR, 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 MSP430F6777IPEUR part is unused and in its original packaging.
Return procedure for MSP430F6777IPEUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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