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Texas Instruments MSP430F6768IPZ
- Part No.:
- MSP430F6768IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6768IPZ.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,032
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Product details
Overview
MSP430F6768IPZ from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, integrating a 25-MHz ultra-low-power MCU, six 24-bit sigma-delta ADCs, LCD controller (320 segments), hardware AES-128, and seven communication interfaces. It delivers <0.1% energy measurement accuracy over 2000:1 dynamic range and meets ANSI C12.20 and IEC 62053 standards.
For engineers reviewing the MSP430F6768IPZ datasheet, MSP430F6768IPZ pinout, MSP430F6768IPZ application, or MSP430F6768IPZ equivalent, key selection considerations include its 100-pin LQFP package with 62 I/Os, industrial temperature range (–40°C to 85°C), 512KB flash/16KB RAM configuration, and dedicated pulse output pins for active/reactive energy calibration in utility metering systems.
Technical Context
The MSP430F6768IPZ implements TI's 24-bit sigma-delta ADC architecture with differential inputs and programmable gain, supporting simultaneous sampling across up to three phases plus neutral. Its integrated AFE includes digital phase correction for current transformers and temperature-compensated energy calculations.
It executes TI's energy measurement software library natively, enabling four-quadrant power computation, exact phase angle measurement, and 40–70 Hz line frequency operation using single-point calibration. The device uses dual supply domains (AVCC/DVCC) and auxiliary supplies (AUXVCC1–3) for isolated analog subsystem operation during mains failure.
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 independent 24-bit sigma-delta ADCs with differential inputs and variable gain for precision current/voltage sensing |
| Energy Accuracy | <0.1% error over 2000:1 dynamic range per phase, compliant with ANSI C12.20 and IEC 62053 |
| Memory | 512KB single-cycle flash + 16KB single-cycle RAM for firmware and runtime data storage |
| Low-Power Modes | LPM3: 2.1 µA at 3 V; LPM3.5 (RTC): 0.34 µA; LPM4.5 (shutdown): 0.18 µA |
| Package | 100-pin LQFP (PZ), 14 mm × 14 mm, 62 GPIOs, industrial temperature range (–40°C to 85°C) |
| Communication | Six eUSCI ports configurable as UART, SPI, or I²C - four UART-capable, two I²C-capable, six SPI-capable |
Pinout & Package
The MSP430F6768IPZ is housed in a 100-pin LQFP (PZ) package with exposed thermal pad, requiring external connection of VASYS1/VASYS2 and VDSYS1/VDSYS2 pairs for proper analog/digital domain isolation. LCDCAP/R33 must be tied to DVSS if unused.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8, 103–109, 111–120 | SDxP0/SDxN0, VASYSx, AVSSx, VREF, AVCC | Dedicated sigma-delta ADC analog input pairs and reference/supply rails for isolated high-precision metrology front-end |
| 9–10, 121–128 | VDSYS1/VDSYS2, DVCC, DVSS1, VCORE | Digital core supply domain with regulated VCORE and separate DVCC/DVSS for low-noise MCU operation |
| 11–12, 21–24, 29–31 | AUXVCC1–3, RTCCAP0/1, XIN/XOUT | Backup subsystem supplies for RTC and crystal oscillator; enables sub-µA retention during AC mains failure |
| 32–45, 48–62, 64–90, 92–102 | Px.y general-purpose I/O with secondary functions | Configurable GPIO supporting LCD COM/SEG, timer capture/compare, UART/SPI/I²C, and tamper detection |
| 38–41, 46, 26–29 | COM0–COM7, LCDCAP/R33, P5.0–P5.3 | LCD driver outputs supporting up to 320-segment displays with contrast control and charge-pump capacitor interface |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated pulse output pins | Hardware-generated active/reactive energy pulses for direct LED calibration without CPU intervention |
| Digital phase correction | Real-time compensation for CT phase lag across temperature and load, eliminating external analog circuitry |
| Password-protected RTC | Crystal offset calibration and temperature compensation ensure ±2 ppm accuracy over –40°C to 85°C |
| Integrated AES-128 module | Hardware-accelerated encryption for secure firmware updates and meter data transmission |
| Four-quadrant measurement | Independent forward/reverse active/reactive energy calculation per phase for bidirectional grid applications |
Applications
| Smart Grid Revenue Metering | Industrial Energy Monitoring System |
|---|---|
Use Scenario: Installed in 3-phase 4-wire star-connected utility meters for residential/commercial billing. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time energy accumulation, tariff management, and AMR/AMI communication. Use Value: Meets ANSI C12.20 Class 0.2 accuracy with single calibration across 40–70 Hz line frequencies, reducing field calibration cost. | Use Scenario: Embedded in factory-floor power quality analyzers monitoring motor-driven loads. IC Role / Device Role / Timing Role: Simultaneous voltage/current sampling across three phases with exact phase angle measurement for harmonic analysis. Use Value: Six 24-bit sigma-delta ADCs enable synchronized sampling at >10 kSPS per channel, supporting IEEE 519-compliant THD reporting. |
| Prepayment Electricity Meter | Renewable Energy Interconnection Monitor |
Use Scenario: Used in pay-as-you-go meters with local credit validation and tamper-resistant display. IC Role / Device Role / Timing Role: Combines LCD driver (320 segments), AES-128 encryption, and RTC with password protection for secure UI and time-based billing. Use Value: Ultra-low standby current (0.34 µA in LPM3.5) extends backup battery life to >10 years during mains outage. | Use Scenario: Deployed in solar/wind inverters to monitor export/import energy and grid synchronization status. IC Role / Device Role / Timing Role: Four-quadrant cumulative energy measurement with neutral current sensing for unbalanced distributed generation. Use Value: Temperature-compensated measurements maintain <0.1% accuracy across ambient shifts, critical for net-metering compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6769IPZ | 7 sigma-delta ADCs vs. 6; 32KB RAM vs. 16KB; identical 512KB flash and 100-pin LQFP package | Supports additional sensor channels (e.g., fourth current path or auxiliary voltage) without external multiplexing | Select when higher analog channel count or larger runtime buffer is required for advanced diagnostics |
| MSP430F6767IPZ | 256KB flash vs. 512KB; 32KB RAM vs. 16KB; same 6 sigma-delta ADCs and 100-pin LQFP | Targeted at cost-sensitive meters with simpler firmware and reduced feature set (e.g., no advanced tariff scheduling) | Select when firmware footprint is under 256KB and full 512KB flash headroom is unnecessary |
Compared with MSP430F6769IPZ and MSP430F6767IPZ, the MSP430F6768IPZ offers optimal balance of memory resources and analog channel count for mainstream 3-phase meter designs-providing sufficient flash for TI's energy library plus custom AMI stack while retaining all six SD24_B converters needed for full three-phase+neutral measurement.
Availability
MSP430F6768IPZ is available at Aetrix Electronics and suitable for smart grid revenue metering, industrial energy monitoring, and prepayment electricity metering requiring stable component supply, long-term lifecycle support, and traceable sourcing for global utility deployments.
Supply support for MSP430F6768IPZ 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 and embedded processing solutions, with deep expertise in low-power microcontrollers and precision metrology ICs.
The MSP430F6768IPZ belongs to TI's polyphase metering SoC product line, engineered specifically for revenue-grade 3-phase watt-hour meters that demand metrology accuracy, security, and ultra-low-power operation across extended temperature ranges.
FAQ
What is the maximum number of simultaneous analog input channels supported by the MSP430F6768IPZ?
The MSP430F6768IPZ integrates six independent 24-bit sigma-delta ADC modules (SD24_B), each supporting differential inputs. This enables true simultaneous sampling across six analog channels - typically configured for three phase currents (IA, IB, IC), three phase-to-neutral voltages (VA, VB, VN), or other combinations including neutral current. The device does not require external multiplexing for this channel count.
Does the MSP430F6768IPZ support hardware-based energy pulse generation?
Yes, the MSP430F6768IPZ includes dedicated pulse output pins (e.g., P1.6/COM2 and P1.7/COM3) that generate calibrated active and reactive energy pulses directly from the metrology engine. These pulses are hardware-timed and independent of CPU execution, ensuring deterministic output timing and eliminating firmware overhead during high-accuracy accumulation.
What is the operating temperature range specified for the MSP430F6768IPZ?
The MSP430F6768IPZ is rated for industrial temperature operation from –40°C to +85°C. This range is validated across all key metrology parameters-including energy accuracy, RTC stability, and sigma-delta ADC performance-ensuring reliable operation in outdoor utility meter enclosures and industrial control panels without derating.
How does the MSP430F6768IPZ handle power supply failure during meter operation?
During AC mains failure, the MSP430F6768IPZ automatically switches to auxiliary supplies (AUXVCC3) and enters LPM3.5 mode, drawing only 0.34 µA at 3 V. Its password-protected RTC continues running with crystal offset and temperature compensation, while backup RAM retains critical metering data - enabling seamless resumption of accurate billing after power restoration.
Is the MSP430F6768IPZ pin-compatible with other devices in the MSP430F676x family?
Yes, all 100-pin LQFP (PZ) variants in the MSP430F676x family-including MSP430F6765IPZ, MSP430F6766IPZ, MSP430F6767IPZ, MSP430F6769IPZ-are pin-compatible with the MSP430F6768IPZ. They share identical pinouts, power domains, and peripheral mappings, allowing firmware reuse and PCB design flexibility across memory and ADC configuration options.
MSP430F6768IPZ 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, 6x24b 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:
MSP430F6768IPZ FAQ
1.How can I place an order for MSP430F6768IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6768IPZ 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 MSP430F6768IPZ reliable?
The price and inventory of MSP430F6768IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6768IPZ is usually 5 days.
3.What payment methods are accepted for MSP430F6768IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6768IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6768IPZ?
MSP430F6768IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6768IPZ 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 MSP430F6768IPZ?
For technical support, including MSP430F6768IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6768IPZ requirements.
6.How does Aetrix verify that MSP430F6768IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F6768IPZ 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 MSP430F6768IPZ meets industry standards.
7.What is the process for return or replacement of MSP430F6768IPZ?
All MSP430F6768IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6768IPZ, 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 MSP430F6768IPZ part is unused and in its original packaging.
Return procedure for MSP430F6768IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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