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Texas Instruments MSP430F6776AIPEU
- Part No.:
- MSP430F6776AIPEU
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F6776AIPEU.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,184
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Product details
Overview
MSP430F6776AIPEU from Texas Instruments is a polyphase metering SoC designed for high-accuracy energy measurement in 3-phase utility 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/16KB RAM, LCD controller (320 segments), and hardware AES-128 encryption - all in a 128-pin LQFP package supporting ANSI C12.20 and IEC 62053 compliance.
For engineers reviewing the MSP430F6776AIPEU datasheet, MSP430F6776AIPEU pinout, MSP430F6776AIPEU application, or MSP430F6776AIPEU equivalent, this page delivers verified technical context, validated pin functions, real-world metrology use cases, and confirmed alternative options for smart meter design, energy monitoring systems, and tamper-resistant utility infrastructure.
Technical Context
The MSP430F6776AIPEU implements a dedicated metrology subsystem with seven independent SD24_B sigma-delta modulators supporting differential inputs and programmable gain, enabling simultaneous voltage/current sampling across three phases plus neutral. Its analog front-end includes digital phase correction for CTs and temperature-compensated energy calculation logic compliant with 40–70 Hz line frequencies using single-point calibration.
Digital architecture features three-channel DMA, four 16-bit timers (nine capture/compare registers), six eUSCI modules (four UART/IrDA/SPI + two SPI/I²C), RTC with tamper detection and crystal offset calibration, and ultra-low-power operation: 2.1 µA in LPM3, 0.34 µA in RTC mode (LPM3.5), and 0.18 µA in shutdown (LPM4.5).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB single-cycle access - sufficient for full metrology firmware, calibration tables, and secure boot code. |
| RAM | 16 KB single-cycle access - supports real-time accumulation of active/reactive energy, harmonic analysis buffers, and LCD frame memory. |
| Sigma-Delta ADCs | 7 × 24-bit SD24_B converters - enables concurrent sampling of 3-phase voltages, currents, and neutral current with <0.1% error over 2000:1 dynamic range. |
| ADC Input Support | Current transformers, Rogowski coils, or shunt resistors - flexible sensor interface without external signal conditioning. |
| Communication Interfaces | 4 × eUSCI_A (UART/IrDA/SPI) + 2 × eUSCI_B (SPI/I²C) - supports HAN, PLC, optical port, and secure MCU-to-metering IC communication. |
| Power Supply Range | 1.8 V to 3.6 V - compatible with battery backup during AC mains failure and wide-input industrial power rails. |
| LCD Driver | Up to 320 segments with contrast control - drives multi-line utility meter displays without external controllers. |
| Security Modules | Hardware AES-128 + RTC tamper detection + password-protected registers - meets anti-tamper requirements per IEC 62053-31 and ANSI C12.22. |
Pinout & Package
Package: 128-pin LQFP (PEU), 20 mm × 14 mm body size, 90 usable I/O pins. Thermal pad not electrically connected; requires solder mask defined thermal relief.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VREF | Analog reference input | Stable 1.2-V internal reference source for SD24_B and ADC10_A; must be decoupled with 100 nF capacitor. |
| SD0P0/SD0N0 – SD6P0/SD6N0 | Sigma-delta modulator inputs | Differential analog inputs for up to 7 channels; support ±2.5-V input range with programmable gain (1×–32×). |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD commons for 320-segment display; support static, 2-, 3-, or 4-mux configurations. |
| eUSCI_A0–A3, eUSCI_B0–B1 | Serial interface I/O | Configurable UART/IrDA/SPI (A ports) and SPI/I²C (B ports); support isolated RS-485, optical head, and secure bootloader interfaces. |
| RST/NMI/SBWTDIO | Reset/debug interface | Combined reset, non-maskable interrupt, and Spy-Bi-Wire debug I/O; enables in-system programming and secure firmware updates. |
Key Features
| Feature | Design Value |
|---|---|
| 4-quadrant energy measurement | Accurate active/reactive power calculation per phase or cumulative, supporting bidirectional grid-tie applications. |
| Dedicated pulse output pins | Hardware-generated active/reactive energy pulses for calibration and revenue-grade meter certification. |
| Temperature-compensated metrology | On-chip temperature sensor and compensation algorithm maintain <0.1% accuracy across –40°C to +85°C ambient. |
| Low-power RTC in LPM3.5 | 0.34 µA operation with crystal oscillator and calendar functions enabled - preserves timekeeping during extended mains outage. |
| Integrated security peripherals | AES-128 encryption engine + tamper-detect pins + write-protected RTC registers - satisfies utility anti-tamper mandates. |
| Flexible power supply management | Automatic switching between AC-derived supply and backup battery; LCD remains active at 3 µA in LPM3 during failure. |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Installed in residential/commercial 3-phase 4-wire star-connected meters for utility billing. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time voltage/current sampling, harmonic analysis, and kWh/kVArh accumulation. Use Value: Meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S accuracy with single calibration across 40–70 Hz line frequency. |
Use Scenario: Embedded in industrial submetering panels for load profiling and demand response analytics. IC Role / Device Role / Timing Role: High-resolution energy accumulator with timestamped data logging via RTC and SPI-connected flash. Use Value: Seven independent 24-bit ADCs enable simultaneous measurement of phase A/B/C voltages and currents plus neutral imbalance. |
| Anti-Tamper Utility Infrastructure | Grid Edge Monitoring Node |
Use Scenario: Deployed in tamper-resistant meters requiring physical intrusion detection and cryptographic firmware integrity. IC Role / Device Role / Timing Role: Secure system-on-chip with tamper-detect pins, AES-128 encryption, and password-protected RTC registers. Use Value: Hardware-enforced security prevents unauthorized register access and ensures calibrated metrology parameters remain unaltered. |
Use Scenario: Integrated into distributed grid sensors for voltage sag/swell detection and PQ event logging. IC Role / Device Role / Timing Role: Real-time power quality analyzer with precise phase-angle measurement and digital phase correction. Use Value: Exact phase-angle measurement and CT digital correction enable accurate reactive power reporting under distorted waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6776AIPZ | Same core metrology IP and peripheral set, but in 100-pin LQFP (62 I/O) and reduced package footprint (14 mm × 14 mm). | Lower I/O count limits LCD segment count and serial interface expansion; suitable for compact single-phase or simplified 3-phase designs. | Select when board space is constrained and full 90-I/O capability is unnecessary; verify pin mapping compatibility for existing layouts. |
| MSP430F6766AIPEU | 6-channel SD24_B ADCs (vs. 7), identical 256KB/16KB memory, same 128-pin LQFP package and peripheral complement. | Lacks one sigma-delta channel - insufficient for full 3-phase + neutral + auxiliary measurement; may require external multiplexing. | Choose only if neutral current measurement is omitted and system-level accuracy budget allows marginal reduction in channel count. |
Compared with MSP430F6776AIPZ and MSP430F6766AIPEU, the MSP430F6776AIPEU uniquely delivers seven independent 24-bit ADC channels in the 128-pin LQFP package - essential for simultaneous 3-phase voltage, 3-phase current, and neutral current acquisition without time-division multiplexing or external components.
Availability
MSP430F6776AIPEU is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, and anti-tamper utility infrastructure requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F6776AIPEU 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 with emphasis on low-power innovation and industrial reliability.
The MSP430F6776AIPEU belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for high-accuracy, low-power energy measurement in smart grid endpoints and utility-grade metering systems.
FAQ
What is the maximum dynamic range accuracy of the MSP430F6776AIPEU's sigma-delta ADCs?
The MSP430F6776AIPEU achieves better than ±0.1% accuracy over a 2000:1 dynamic range for phase current measurements. This specification is validated per ANSI C12.20 and IEC 62053 standards and applies to all seven SD24_B converters under specified operating conditions including temperature compensation and digital phase correction.
Does the MSP430F6776AIPEU support hardware-based AES encryption?
Yes, the MSP430F6776AIPEU integrates a dedicated hardware AES-128 encryption module that operates independently of the CPU. This enables secure firmware updates, encrypted data storage, and protected communication without compromising real-time metrology performance - a key requirement for certified utility meters.
How many LCD segments can the MSP430F6776AIPEU drive, and what mux configurations are supported?
The MSP430F6776AIPEU LCD controller supports up to 320 segments using COM0–COM7 outputs. It supports static, 2-mux, 3-mux, and 4-mux configurations, with programmable contrast control and automatic blink functionality - eliminating need for external display drivers in utility meter designs.
What low-power modes are available on the MSP430F6776AIPEU, and what are their typical current draws?
The MSP430F6776AIPEU offers multiple low-power modes: LPM3 (standby) draws 2.1 µA at 3 V with RTC active; LPM3.5 (RTC-only) consumes 0.34 µA; and LPM4.5 (shutdown) uses just 0.18 µA. All modes retain RAM and allow wake-up in under 5 µs - critical for battery-backed meter operation during mains failure.
Can the MSP430F6776AIPEU measure neutral current independently in a 3-phase 4-wire system?
Yes, the MSP430F6776AIPEU supports independent neutral current measurement using its seventh SD24_B sigma-delta ADC channel. Paired with dedicated pulse output pins for active/reactive energy, this enables full 3-phase + neutral metrology without external components or time-division multiplexing.
MSP430F6776AIPEU 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:
- 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:
MSP430F6776AIPEU FAQ
1.How can I place an order for MSP430F6776AIPEU through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6776AIPEU 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 MSP430F6776AIPEU reliable?
The price and inventory of MSP430F6776AIPEU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6776AIPEU is usually 5 days.
3.What payment methods are accepted for MSP430F6776AIPEU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6776AIPEU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6776AIPEU?
MSP430F6776AIPEU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6776AIPEU 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 MSP430F6776AIPEU?
For technical support, including MSP430F6776AIPEU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6776AIPEU requirements.
6.How does Aetrix verify that MSP430F6776AIPEU is sourced from the original manufacturer or authorized distributors?
All MSP430F6776AIPEU 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 MSP430F6776AIPEU meets industry standards.
7.What is the process for return or replacement of MSP430F6776AIPEU?
All MSP430F6776AIPEU units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6776AIPEU, 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 MSP430F6776AIPEU part is unused and in its original packaging.
Return procedure for MSP430F6776AIPEU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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