Texas Instruments MSP430F6775IPEU
- Part No.:
- MSP430F6775IPEU
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F6775IPEU.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 128LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,170
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Product details
Overview
MSP430F6775IPEU 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, 128KB flash, 16KB RAM, LCD controller (320 segments), AES-128 encryption, and real-time clock with temperature compensation - delivering <0.1% accuracy over 2000:1 dynamic range for phase current measurement in utility metering applications.
For engineers reviewing the MSP430F6775IPEU datasheet, MSP430F6775IPEU pinout, MSP430F6775IPEU application, or MSP430F6775IPEU equivalent, key selection considerations include its 128-pin LQFP (PEU) package, 90 GPIOs, support for ANSI C12.20/IEC 62053 compliance, ultra-low-power LPM3.5 mode (0.34 µA), and dedicated pulse output pins for active/reactive energy calibration.
Technical Context
The MSP430F6775IPEU implements a 25-MHz CPU with 32-bit hardware multiplier to execute TI's energy measurement software library, performing real-time tariff management, four-quadrant power calculation, and digital phase correction for current transformers. Its analog front end includes configurable SD24_B modulators with differential inputs and programmable gain, plus a system 10-bit ADC for supply/temperature monitoring.
It supports flexible power architecture with automatic switching between main and backup supplies, enabling <3 µA LCD operation during AC mains failure. Communication is handled via six eUSCI ports configurable as UART, SPI, or I²C - critical for AMR/AMI module interfacing in smart meter deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 128 KB single-cycle flash - sufficient for full energy measurement firmware + tariff logic + communication stack |
| RAM | 16 KB single-cycle RAM - supports real-time accumulation buffers and secure key storage |
| Sigma-Delta ADCs | Seven independent 24-bit SD24_B converters - enables simultaneous 3-phase + neutral current/voltage sampling with >100 dB SNR |
| Accuracy | <0.1% error over 2000:1 dynamic range - meets ANSI C12.20 Class 0.1 and IEC 62053-22 Class 0.5S requirements |
| Low-Power Mode (LPM3.5) | 0.34 µA at 3 V - preserves RTC and critical registers during mains outage with minimal backup capacitor size |
| LCD Driver | Supports up to 320 segments with contrast control - enables high-resolution display without external driver IC |
| Package | 128-pin LQFP (PEU), 20 mm × 14 mm - provides 90 I/O pins for sensor interfaces, pulse outputs, and communications |
Pinout & Package
The MSP430F6775IPEU is housed in a 128-pin LQFP (PEU) package with 20 mm × 14 mm body size and standard 0.5 mm pitch. Pin functions include dedicated SDxP/N analog inputs for sigma-delta modulators, COMx/LCDCAP for segment multiplexing, pulse output pins (e.g., P1.6/COM2, P1.7/COM3), and six eUSCI-capable ports mapped across P2–P11.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0/SD0N0 – SD6P0/SD6N0 | Differential analog inputs for SD24_B modulators | Accepts direct connection to current transformers, Rogowski coils, or shunt resistors with programmable gain |
| P1.6/COM2, P1.7/COM3 | Dedicated pulse output terminals | Generate calibrated active/reactive energy pulses per kWh/kVArh for metrology certification |
| VREF | Reference voltage input | Provides stable reference for SD24_B modulators; supports external precision reference or internal buffered source |
| LCDCAP/R33 | Capacitor connection for LCD bias generation | Must be connected to DVSS if unused; enables charge-pump-based LCD voltage generation |
| AUXVCC1–AUXVCC3 | Backup subsystem supply rails | Enable RTC, RAM retention, and low-power wake-up during main supply failure |
Key Features
| Feature | Design Value |
|---|---|
| Four-quadrant energy measurement | Enables bidirectional power flow tracking (generation/consumption) per phase for net metering compliance |
| Digital phase correction | Compensates CT-induced phase shift in real time, eliminating need for external analog correction circuitry |
| Password-protected RTC with crystal offset calibration | Ensures timekeeping accuracy ±2 ppm over temperature; prevents unauthorized tampering of billing timestamps |
| Integrated AES-128 encryption engine | Accelerates secure firmware updates and encrypted data transmission without CPU overhead |
| Temperature-compensated energy measurement | Maintains metrological accuracy across –40°C to +85°C industrial operating range |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Installed in residential/commercial 3-phase 4-wire star-connected utility meters for kWh billing. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time energy accumulation, tariff switching, and secure data logging. Use Value: Delivers ANSI C12.20 Class 0.1 accuracy with single calibration across 40–70 Hz line frequency - reducing factory test time and calibration cost. | Use Scenario: Embedded in industrial submetering systems measuring energy consumption per production line or HVAC zone. IC Role / Device Role / Timing Role: High-precision energy acquisition node with isolated analog inputs and local LCD display. Use Value: Seven SD24_B ADCs enable concurrent measurement of three phases + neutral + auxiliary sensors - eliminating need for external ADCs or multiplexers. |
| AMI Gateway Interface | Tamper-Resistant Metering Module |
Use Scenario: Integrated into smart meter designs requiring two-way communication with RF mesh or PLC backhaul networks. IC Role / Device Role / Timing Role: Host processor managing AMI protocol stacks (e.g., DLMS/COSEM) while offloading metrology to dedicated hardware accelerators. Use Value: Six configurable eUSCI ports support simultaneous UART (for PLC modem), SPI (for RF transceiver), and I²C (for secure element) - simplifying interface routing. | Use Scenario: Deployed in high-theft-risk regions where physical tampering (magnet, voltage injection, case opening) must be detected and logged. IC Role / Device Role / Timing Role: Security-enabling SoC with RTC tamper detect pins, AES-128, and password-protected memory regions. Use Value: Integrated tamper detection logic triggers immediate non-volatile event logging and zeroizes sensitive keys - meeting IEC 62055-41 anti-tamper 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 |
|---|---|---|---|
| MSP430F6776IPEU | 256 KB flash, 16 KB RAM - doubles program storage for extended firmware features | Same pinout and peripheral set; suitable when larger code space needed for advanced tariff or communication protocols | Select when future firmware expansion or dual-protocol support (e.g., DLMS + OSGP) is required |
| MSP430F6765IPEU | 6 SD24_B ADCs (vs. 7), no SD4/SD5/SD6 channels; 128 KB flash, 16 KB RAM | Reduced channel count limits simultaneous 3-phase + neutral + auxiliary sensing; lower metrology flexibility | Choose for cost-sensitive 3-phase-only meters without neutral current monitoring requirement |
Compared with MSP430F6776IPEU and MSP430F6765IPEU, the MSP430F6775IPEU offers optimal balance of metrology capability (7 SD24_B ADCs), security (AES-128, tamper detection), and memory (128 KB flash) for certified 3-phase revenue meters - making it ideal for new designs targeting global ANSI/IEC compliance without over-provisioning.
Availability
MSP430F6775IPEU is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, and AMI gateway interface applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-certified designs.
Supply support for MSP430F6775IPEU 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 revenue-grade polyphase metering - integrating metrology-grade ADCs, secure firmware execution, and ultra-low-power RTC operation to reduce bill-of-materials and accelerate certification to ANSI C12.20 and IEC 62053 standards.
FAQ
What is the maximum dynamic range accuracy specification for the MSP430F6775IPEU?
The MSP430F6775IPEU achieves <0.1% measurement error over a 2000:1 dynamic range for phase current, as verified under ANSI C12.20 and IEC 62053-22 test conditions. This performance is enabled by its seven 24-bit sigma-delta ADCs with digital phase correction and temperature compensation - ensuring metrological compliance without external calibration components.
Does the MSP430F6775IPEU support pulse output for energy calibration?
Yes, the MSP430F6775IPEU includes dedicated pulse output pins including P1.6/COM2 and P1.7/COM3, configured as active and reactive energy pulse outputs. These pins generate calibrated kWh/kVArh pulses per industry-standard definitions, supporting field calibration and type approval testing per ANSI C12.20 Section 8.2 and IEC 62053-31 Annex B.
What low-power modes are available on the MSP430F6775IPEU and their typical current draw?
The MSP430F6775IPEU supports multiple low-power modes: LPM3 (2.1 µA at 3 V), LPM3.5 (RTC active, 0.34 µA), and LPM4.5 (shutdown, 0.18 µA). All modes retain RAM and register contents. LPM3.5 enables continuous timekeeping and wake-up in <5 µs - critical for maintaining billing integrity during AC mains failure.
How many communication interfaces does the MSP430F6775IPEU support and what configurations are possible?
The MSP430F6775IPEU integrates six enhanced USCI (eUSCI) modules: four configurable as UART/IrDA/SPI and two as SPI/I²C. These are distributed across ports P2–P11 and support simultaneous operation - for example, UART for PLC modem, SPI for RF transceiver, and I²C for secure element - all without CPU intervention due to DMA support.
Is the MSP430F6775IPEU pin-compatible with other devices in the MSP430F677x family?
Yes, the MSP430F6775IPEU shares identical 128-pin LQFP (PEU) packaging and pin mapping with MSP430F6776IPEU, MSP430F6777IPEU, MSP430F6778IPEU, and MSP430F6779IPEU. This allows hardware reuse across variants differing only in flash/RAM size and SD24_B channel count - simplifying platform design and qualification.
MSP430F6775IPEU 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:
- 128KB (128K 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:
MSP430F6775IPEU FAQ
1.How can I place an order for MSP430F6775IPEU through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6775IPEU 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 MSP430F6775IPEU reliable?
The price and inventory of MSP430F6775IPEU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6775IPEU is usually 5 days.
3.What payment methods are accepted for MSP430F6775IPEU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6775IPEU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6775IPEU?
MSP430F6775IPEU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6775IPEU 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 MSP430F6775IPEU?
For technical support, including MSP430F6775IPEU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6775IPEU requirements.
6.How does Aetrix verify that MSP430F6775IPEU is sourced from the original manufacturer or authorized distributors?
All MSP430F6775IPEU 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 MSP430F6775IPEU meets industry standards.
7.What is the process for return or replacement of MSP430F6775IPEU?
All MSP430F6775IPEU units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6775IPEU, 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 MSP430F6775IPEU part is unused and in its original packaging.
Return procedure for MSP430F6775IPEU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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