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Texas Instruments MSP430F6778IPZ
- Part No.:
- MSP430F6778IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6778IPZ.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,775
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Product details
Overview
MSP430F6778IPZ from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring seven 24-bit sigma-delta ADCs (±0.1% accuracy over 2000:1 dynamic range), 512KB flash/16KB RAM, LCD controller (320 segments), AES-128 encryption, and real-time clock with temperature compensation. It supports ANSI C12.20 and IEC 62053 compliance in utility revenue metering applications.
For engineers reviewing the MSP430F6778IPZ datasheet, MSP430F6778IPZ pinout, MSP430F6778IPZ application, or MSP430F6778IPZ equivalent, key selection considerations include its 100-pin LQFP (PZ) package, 62 GPIOs, ultra-low-power operation (0.18 µA in LPM4.5), integrated SD24_B modulators for phase current/voltage sensing, and hardware-accelerated energy calculation firmware support.
Technical Context
The MSP430F6778IPZ integrates a 25-MHz MSP430 CPU with 32-bit hardware multiplier to execute TI's energy measurement software library for active/reactive power, RMS, harmonics, and tariff management. Its analog front end includes dedicated SD24_B modulators per phase plus neutral, each with differential inputs, programmable gain, and digital phase correction for CT-based current sensing.
Power architecture combines dual-domain supply (AVCC/DVCC/VCORE), auxiliary supplies (AUXVCC1–3) for backup subsystems, and flexible low-power modes-LPM3 (2.1 µA), LPM3.5 (0.34 µA), and LPM4.5 (0.18 µA)-enabling >10-year battery life during mains failure while retaining RTC and critical data in backup RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core CPU | 25-MHz MSP430 with 32-bit hardware multiplier for real-time energy computation |
| ADC Resolution | Seven independent 24-bit sigma-delta ADCs (SD24_B) supporting simultaneous 3-phase + neutral measurement |
| Accuracy | <0.1% error over 2000:1 dynamic range for phase current, meeting ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S |
| Memory | 512KB single-cycle flash + 16KB single-cycle RAM for firmware, calibration tables, and runtime variables |
| Low-Power Modes | LPM4.5 shutdown mode draws only 0.18 µA at 3 V, enabling >10-year coin-cell backup operation |
| LCD Driver | Supports up to 320 segments with contrast control and 3 µA LPM3 operation during AC failure |
| Security | Hardware AES-128 module + password-protected RTC + tamper-detect pins for anti-tamper compliance |
Pinout & Package
Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN / XOUT | Low-frequency crystal oscillator interface | Connects to 32.768-kHz crystal for RTC timing; supports automatic crystal offset calibration |
| VREF | Reference voltage input | Provides stable reference for SD24_B modulators; enables high-accuracy energy measurement across temperature |
| SD0P0 / SD0N0 – SD6P0 / SD6N0 | Sigma-delta modulator analog inputs | Seven differential pairs for phase A/B/C and neutral current/voltage sensing; supports CT, Rogowski, or shunt sensors |
| COM0–COM7 | LCD segment/common drivers | Eight common outputs driving up to 320-segment LCD display with internal charge pump |
| AUXVCC3 | Backup subsystem supply | Independent 1.8–3.6 V rail powering RTC, backup RAM, and tamper detection during main power loss |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated pulse output pins | Hardware-generated active/reactive energy pulses for metrology calibration and verification without CPU overhead |
| Digital phase correction | Compensates CT-induced phase shift in real time, eliminating external analog compensation components |
| Temperature-compensated energy measurement | On-chip temperature sensor feeds correction algorithms to maintain <0.1% accuracy across –40°C to +85°C |
| Four-quadrant power calculation | Measures import/export active/reactive energy per phase or cumulatively for bidirectional grid applications |
| Single calibration across 40–70 Hz | Eliminates line frequency recalibration in global deployments covering 50/60 Hz grids and microgrid variations |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Installed in residential/commercial 3-phase 4-wire star-connected utility meters for billing-grade energy accounting. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time active/reactive energy integration, tariff switching, and secure data logging. Use Value: Meets ANSI C12.20 and IEC 62053 standards with <0.1% accuracy, enabling direct revenue metering without external calibration hardware. |
Use Scenario: Embedded in industrial submetering systems tracking energy consumption per production line or HVAC zone. IC Role / Device Role / Timing Role: High-precision energy accumulator with harmonic analysis and demand interval reporting via UART/I²C. Use Value: Seven SD24_B ADCs enable simultaneous measurement of all three phases and neutral, detecting imbalance and leakage currents. |
| AMI Endpoint Node | Tamper-Resistant Grid Sensor |
Use Scenario: Integrated into automated meter infrastructure (AMI) endpoints communicating via PLC or RF mesh networks. IC Role / Device Role / Timing Role: Secure data concentrator with AES-128 encryption, RTC-synchronized event logging, and tamper-detect I/O. Use Value: Hardware security modules prevent firmware extraction and unauthorized configuration changes required by utility cybersecurity mandates. |
Use Scenario: Deployed in outdoor distribution transformers or switchgear for continuous grid health monitoring. IC Role / Device Role / Timing Role: Low-power always-on sensor node using LPM4.5 mode (0.18 µA) with wake-on-event capability for fault detection. Use Value: Backup power autonomy >10 years on CR2032 enables unattended operation in inaccessible locations during mains outage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6779IPZ | 32KB RAM vs. 16KB; identical 512KB flash, 7 SD24_B ADCs, and 100-pin PZ package | Required for applications needing larger runtime buffer space for multi-tariff history or extended waveform capture | Select MSP430F6779IPZ when firmware complexity or data logging depth exceeds 16KB RAM capacity. |
| MSP430F6768IPZ | 6 SD24_B ADCs (vs. 7), 512KB flash/16KB RAM, same 100-pin PZ package and LPM4.5 current (0.18 µA) | Suitable for 3-phase delta configurations without neutral current measurement requirement | Choose MSP430F6768IPZ to reduce BOM cost where neutral current sensing is not mandated by local utility standards. |
Compared with MSP430F6778IPZ, the MSP430F6779IPZ adds 16KB RAM for deeper data buffering and firmware scalability, while the MSP430F6768IPZ removes one SD24_B channel to lower system cost-both retain identical power profiles, security features, and metrology accuracy for compliant 3-phase metering.
Availability
MSP430F6778IPZ is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, and AMI endpoint development requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-certified designs.
Supply support for MSP430F6778IPZ 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 for industrial, automotive, and energy infrastructure markets.
The MSP430F6778IPZ belongs to TI's polyphase metering SoC product line, engineered specifically for revenue-grade 3-phase watt-hour meters with integrated metrology, security, and ultra-low-power operation to meet global utility certification requirements.
FAQ
What metrology standards does the MSP430F6778IPZ comply with?
The MSP430F6778IPZ meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S accuracy requirements for active energy measurement. Its seven 24-bit sigma-delta ADCs deliver <0.1% error over 2000:1 dynamic range, validated across –40°C to +85°C with temperature compensation. The device supports four-quadrant measurement and digital phase correction essential for modern bidirectional grid applications.
How many analog input channels does the MSP430F6778IPZ support for energy measurement?
The MSP430F6778IPZ integrates seven independent 24-bit sigma-delta modulators (SD24_B), each with differential inputs and programmable gain. These support simultaneous sampling of three phase voltages, three phase currents, and neutral current-enabling full 3-phase 4-wire star topology measurement. Additional system-level ADC resources include a 10-bit ADC with six external channels for auxiliary sensing.
What is the lowest power consumption mode of the MSP430F6778IPZ and its typical current draw?
The MSP430F6778IPZ achieves 0.18 µA in LPM4.5 (shutdown mode) at 3 V, retaining RTC operation and backup RAM contents. This ultra-low quiescent current enables >10-year operation on a single CR2032 coin cell during AC mains failure. The device also supports LPM3 (2.1 µA) with LCD active and LPM3.5 (0.34 µA) with RTC-only operation.
Does the MSP430F6778IPZ include hardware security features for utility metering?
Yes, the MSP430F6778IPZ includes integrated hardware AES-128 encryption, password-protected RTC with tamper-detect I/O pins, and secure bootloader (BSL) with lock bits. These features satisfy utility anti-tamper requirements such as EN 13757-3 and DLMS/COSEM security profiles, preventing unauthorized firmware access or configuration changes in field-deployed meters.
What package and pin count does the MSP430F6778IPZ use?
The MSP430F6778IPZ uses a 100-pin LQFP (PZ) package measuring 14 mm × 14 mm, with 62 general-purpose I/O pins. It shares pin compatibility with other MSP430F67xx IPZ variants (e.g., MSP430F6779IPZ, MSP430F6768IPZ) but differs from the 128-pin PEU variant in reduced I/O count and absence of certain SD24_B input pins (SD6P0/SD6N0).
MSP430F6778IPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tray
- 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:
- 62
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K 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:
MSP430F6778IPZ FAQ
1.How can I place an order for MSP430F6778IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6778IPZ 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 MSP430F6778IPZ reliable?
The price and inventory of MSP430F6778IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6778IPZ is usually 5 days.
3.What payment methods are accepted for MSP430F6778IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6778IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6778IPZ?
MSP430F6778IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6778IPZ 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 MSP430F6778IPZ?
For technical support, including MSP430F6778IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6778IPZ requirements.
6.How does Aetrix verify that MSP430F6778IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F6778IPZ 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 MSP430F6778IPZ meets industry standards.
7.What is the process for return or replacement of MSP430F6778IPZ?
All MSP430F6778IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6778IPZ, 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 MSP430F6778IPZ part is unused and in its original packaging.
Return procedure for MSP430F6778IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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