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Texas Instruments MSP430F6768IPEUR
- Part No.:
- MSP430F6768IPEUR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F6768IPEUR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,378
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Product details
Overview
MSP430F6768IPEUR from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring six 24-bit sigma-delta ADCs, 512KB flash, 16KB RAM, and <0.1% energy measurement accuracy over 2000:1 dynamic range. It integrates LCD controller (320 segments), AES-128 encryption, RTC with temperature compensation, and supports ANSI C12.20/IEC 62053 compliance.
For engineers reviewing the MSP430F6768IPEUR datasheet, MSP430F6768IPEUR pinout, MSP430F6768IPEUR application, or MSP430F6768IPEUR equivalent, key selection considerations include its 128-pin LQFP package, ultra-low-power operation (0.18 µA in LPM4.5), dedicated pulse output pins for active/reactive energy calibration, and support for current transformers, Rogowski coils, or shunt sensors in revenue-grade metering systems.
Technical Context
The MSP430F6768IPEUR implements a 25-MHz ultra-low-power CPU with 32-bit hardware multiplier to execute TI's energy measurement software library, enabling real-time tariff management, four-quadrant power calculation, and digital phase correction per phase. Its analog front end includes seven independent SD24_B modulators (six used) with differential inputs, programmable gain, and internal reference support.
It features dual power domains (AVCC/DVCC), auxiliary supplies (AUXVCC1–3) for backup subsystem operation during AC mains failure, and flexible clocking with XT1 (32.768 kHz crystal), DCO, REFO, and VLO oscillators. The device supports simultaneous three-phase + neutral voltage/current sampling with exact phase angle measurement and 40–70 Hz line frequency tolerance using single-point calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core CPU | 25-MHz MSP430 with 32-bit hardware multiplier for real-time energy calculations |
| ADC Resolution | Six 24-bit sigma-delta ADCs (SD24_B) with differential inputs and variable gain for precision metrology |
| Flash / RAM | 512KB single-cycle flash and 16KB single-cycle RAM for firmware storage and runtime data buffers |
| Energy Accuracy | <0.1% error over 2000:1 dynamic range per phase, meeting ANSI C12.20 Class 0.1 and IEC 62053-22 requirements |
| Low-Power Modes | LPM3.5 (RTC mode): 0.34 µA at 3 V; LPM4.5 (shutdown): 0.18 µA at 3 V - enables >10-year battery backup |
| LCD Driver | Supports up to 320 segments with contrast control and 3 µA operation in LPM3 during mains failure |
| Security | Hardware AES-128 module and password-protected RTC with crystal offset calibration and temperature compensation |
Pinout & Package
Package: 128-pin LQFP (PEU), 20 mm × 14 mm body size, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0 / SD0N0 – SD3P0 / SD3N0 | Differential analog inputs for SD24_B modulators | Four dedicated current/voltage sensing channels with programmable gain and internal reference routing |
| SD4P0 / SD4N0 – SD5P0 / SD5N0 | Additional differential analog inputs | Two extra SD24_B channels supporting neutral or auxiliary sensor connections |
| VREF | Reference voltage input | Accepts external 1.2–2.5 V reference or internal 1.2 V REF for ADC full-scale calibration |
| COM0–COM7 | LCD segment common outputs | Eight commons driving up to 320-segment LCD with integrated charge pump and contrast control |
| PULSE_A / PULSE_R | Dedicated energy pulse outputs | Open-drain outputs for active/reactive energy calibration pulses compliant with IEC 62053-31 |
| XIN / XOUT | 32.768 kHz crystal oscillator terminals | Connects to low-frequency crystal for RTC with ±1 ppm temperature-compensated accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Digital phase correction | Compensates CT-induced phase shift in real time without external components |
| Four-quadrant measurement | Enables bidirectional energy accounting per phase (import/export, inductive/capacitive) |
| Temperature-compensated energy | On-chip temperature sensor feeds RTC and ADC calibration algorithms to maintain accuracy across –40°C to +85°C |
| Flexible power supply switching | Automatic switchover between main AC-derived supply and backup battery/LDO without firmware intervention |
| Multi-interface communications | Six eUSCI ports configurable as UART, SPI, or I²C - supports HAN, PLC, RF, and optical communication modules |
Applications
| Smart Grid Revenue Metering | AMI-Compatible Energy Monitor |
|---|---|
Use Scenario: Installed in utility-owned 3-phase 4-wire star-connected electricity meters for residential/commercial billing. 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 Class 0.1 accuracy with single calibration across 40–70 Hz line frequencies, reducing field calibration cost and time. |
Use Scenario: Embedded in industrial submetering nodes reporting consumption data via LoRaWAN or NB-IoT gateways. IC Role / Device Role / Timing Role: System-on-chip handling sensor acquisition, encryption (AES-128), RTC-synchronized data stamping, and serial-to-RF protocol bridging. Use Value: Ultra-low standby current (0.34 µA in LPM3.5) extends battery life beyond 10 years while maintaining secure, time-stamped energy records. |
| Anti-Tamper Utility Meter | Neutral Current Monitoring System |
Use Scenario: Deployed in tamper-resistant smart meters with physical intrusion detection and cryptographic audit logging. IC Role / Device Role / Timing Role: Integrates RTC tamper detect pins, AES-128 encryption, and secure bootloader to prevent firmware rollback or unauthorized access. Use Value: Password-protected RTC and hardware-based security modules satisfy IEC 62053-41 anti-tamper requirements without external security ICs. |
Use Scenario: Used in commercial building energy dashboards detecting neutral conductor imbalance or leakage currents. IC Role / Device Role / Timing Role: Simultaneous sampling of all three phase currents plus neutral using six SD24_B ADCs with synchronized conversion timing. Use Value: Exact phase angle measurements and four-quadrant analysis enable detection of neutral overload conditions with <0.1° resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6769IPEUR | 7 SD24_B ADCs (vs. 6), 32KB RAM (vs. 16KB), identical flash (512KB) and package | Supports additional sensor channels (e.g., auxiliary voltage or temperature) without external muxing | Select when needing seventh metrology channel or larger runtime RAM for extended firmware features |
| MSP430F6768IPZ | Same core specs but 100-pin LQFP (PZ) package with 62 I/O (vs. 90) and reduced SD24_B pin count | Lower BOM cost and smaller PCB footprint, but limited sensor interface flexibility | Select for space-constrained designs where fewer analog inputs and I/O are acceptable |
Compared with MSP430F6769IPEUR, the MSP430F6768IPEUR trades one SD24_B channel and half the RAM for lower system cost and power; compared with MSP430F6768IPZ, it provides 28 more I/O and full SD24_B pinout at the expense of larger board area - making it optimal for feature-rich, high-accuracy 3-phase meter platforms.
Availability
MSP430F6768IPEUR is available at Aetrix Electronics and suitable for smart grid revenue metering, AMI-compatible energy monitoring, and anti-tamper utility metering requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F6768IPEUR 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 company specializing in analog and embedded processing technologies, with leadership in low-power microcontrollers and precision metrology solutions.
The MSP430F6768IPEUR belongs to TI's polyphase metering SoC product line, engineered specifically for revenue-grade electricity meters that demand metrological accuracy, regulatory compliance (ANSI/IEC), and ultra-low-power operation under intermittent AC supply.
FAQ
What is the maximum number of independent analog input channels supported by the MSP430F6768IPEUR?
The MSP430F6768IPEUR integrates six 24-bit sigma-delta ADCs (SD24_B) with fully differential inputs, each supporting programmable gain and internal reference routing. These six channels are independently configurable for simultaneous voltage and current sampling across three phases and neutral. The device does not support a seventh SD24_B channel - that capability is reserved for the MSP430F6769IPEUR variant.
Does the MSP430F6768IPEUR meet ANSI C12.20 and IEC 62053 standards for revenue metering?
Yes, the MSP430F6768IPEUR is designed to meet or exceed ANSI C12.20 Class 0.1 and IEC 62053-22 accuracy requirements. Its <0.1% energy measurement error over 2000:1 dynamic range, digital phase correction, temperature-compensated calibration, and four-quadrant computation are validated against these standards using TI's energy measurement software library and reference designs like EVM430-F6779.
What is the lowest power consumption mode available on the MSP430F6768IPEUR, and what functions remain active?
The MSP430F6768IPEUR achieves 0.18 µA in LPM4.5 (shutdown mode) at 3 V, where only the RTC and backup RAM retain state. In this mode, the CPU, flash, RAM, ADCs, and peripherals are powered down. The device wakes in <5 µs upon RTC alarm or external interrupt, enabling rapid resumption of metrology tasks after mains failure - critical for uninterrupted energy logging in battery-backed meters.
Can the MSP430F6768IPEUR drive a 320-segment LCD directly, and what power savings does it offer during AC mains failure?
Yes, the MSP430F6768IPEUR includes an integrated LCD_C peripheral supporting up to 320 segments with built-in charge pump, contrast control, and blinking logic. During AC mains failure, it operates in LPM3 with only the LCD and RTC active at 3 µA - allowing multi-year battery backup while maintaining visible display output and accurate timekeeping for outage logging and user notification.
How many communication interfaces does the MSP430F6768IPEUR support, and are they configurable?
The MSP430F6768IPEUR features six enhanced universal serial communication interfaces (eUSCI), configurable as four UARTs, six SPIs, or two I²C ports - with shared pins allowing flexible assignment. This enables concurrent connectivity to multiple subsystems: e.g., UART to optical port, SPI to RF transceiver, I²C to external EEPROM, and UART to PLC modem - all managed without external level shifters or protocol converters.
MSP430F6768IPEUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 128-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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, 6x24b Sigma Delta Converter
- Number of I/O:
- 90
- 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:
MSP430F6768IPEUR FAQ
1.How can I place an order for MSP430F6768IPEUR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6768IPEUR 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 MSP430F6768IPEUR reliable?
The price and inventory of MSP430F6768IPEUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6768IPEUR is usually 5 days.
3.What payment methods are accepted for MSP430F6768IPEUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6768IPEUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6768IPEUR?
MSP430F6768IPEUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6768IPEUR 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 MSP430F6768IPEUR?
For technical support, including MSP430F6768IPEUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6768IPEUR requirements.
6.How does Aetrix verify that MSP430F6768IPEUR is sourced from the original manufacturer or authorized distributors?
All MSP430F6768IPEUR 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 MSP430F6768IPEUR meets industry standards.
7.What is the process for return or replacement of MSP430F6768IPEUR?
All MSP430F6768IPEUR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6768IPEUR, 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 MSP430F6768IPEUR part is unused and in its original packaging.
Return procedure for MSP430F6768IPEUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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