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Texas Instruments MSP430F6766AIPZR
- Part No.:
- MSP430F6766AIPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6766AIPZR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,713
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Product details
Overview
MSP430F6766AIPZR from Texas Instruments is a polyphase metering SoC designed for high-accuracy energy measurement in 3-phase utility meters. It integrates six independent 24-bit sigma-delta ADCs, a 25-MHz CPU with 32-bit multiplier, 256KB flash, 16KB RAM, and LCD controller supporting up to 320 segments - enabling ANSI C12.20 and IEC 62053-compliant metering with <0.1% error over 2000:1 dynamic range.
For engineers reviewing the MSP430F6766AIPZR datasheet, MSP430F6766AIPZR pinout, MSP430F6766AIPZR application, or MSP430F6766AIPZR equivalent, key selection criteria include its 128-pin LQFP (PEU) package, dual-supply analog front-end architecture, RTC with tamper detection, AES-128 encryption, and support for current transformers, Rogowski coils, or shunt sensors in revenue-grade meter designs.
Technical Context
The MSP430F6766AIPZR implements a dedicated metrology subsystem with six SD24_B sigma-delta modulators feeding digital filters and calibration engines - each capable of simultaneous phase/neutral voltage and current sampling. Its analog supply domain (AVCC/AVSS) is isolated from digital rails (DVCC/DVSS), and auxiliary supplies (AUXVCC1–3) power precision reference and RTC circuitry independently.
Digital processing leverages three-channel DMA, four 16-bit timers with nine capture/compare registers, six eUSCI modules (four UART/IrDA/SPI + two SPI/I²C), and hardware-accelerated AES-128 for secure firmware updates and data encryption - all coordinated under ultra-low-power operation modes including LPM3.5 (0.34 µA) and LPM4.5 (0.18 µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB single-cycle flash for metrology firmware, calibration tables, and communication stacks |
| RAM | 16 KB single-cycle RAM for real-time energy accumulation buffers and intermediate calculations |
| Sigma-Delta ADCs | 6 independent 24-bit SD24_B converters supporting differential inputs and programmable gain for phase/neutral current/voltage sensing |
| ADC Accuracy | <0.1% error over 2000:1 dynamic range at 40–70 Hz line frequency with single-point calibration |
| Low-Power Modes | LPM3.5 (RTC active): 0.34 µA; LPM4.5 (shutdown): 0.18 µA - enables >10-year battery backup for LCD and RTC during mains failure |
| Package | 128-pin LQFP (PEU), 20 mm × 14 mm, 90 GPIOs including 32 LCD segment drivers and 8 COM lines |
| CPU Core | 25-MHz 16-bit RISC CPU with integrated 32-bit hardware multiplier for real-time metrology math |
Pinout & Package
128-pin LQFP (PEU) package with 20 mm × 14 mm body size and 0.5 mm pitch. Features dedicated analog supply pins (AVCC, AVSS, VASYS1/2), auxiliary supplies (AUXVCC1–3), RTC crystal connections (XIN/XOUT), LCDCAP, and 90 general-purpose I/Os including 32 LCD segment outputs and 8 COM lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0/SD0N0 – SD6P0/SD6N0 | Sigma-delta ADC differential inputs | 6 pairs for simultaneous phase A/B/C and neutral current/voltage sensing with CT/Rogowski/shunt support |
| VREF | Reference voltage input | External 2.5-V reference for SD24_B modulators; enables high-precision ratio-metric measurements |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD backplanes for 320-segment display with contrast control and charge-pump bias |
| XIN/XOUT | RTC crystal oscillator terminals | Supports 32.768-kHz crystal for temperature-compensated, tamper-detectable real-time clock |
| RST/NMI/SBWTDIO | Reset, NMI, and JTAG debug I/O | Single-pin multifunction interface for programming, debugging, and system reset with security lockout |
Key Features
| Feature | Design Value |
|---|---|
| 4-quadrant energy measurement | Enables bidirectional power flow monitoring per phase for net metering and distributed generation applications |
| Dedicated pulse output pins | Hardware-generated active/reactive energy pulses for field calibration and revenue meter verification without CPU overhead |
| Digital phase correction | Compensates CT phase lag in software using on-chip DSP resources - eliminates external analog compensation components |
| Password-protected RTC with tamper detection | Prevents unauthorized clock manipulation and logs physical intrusion events for regulatory compliance and forensic auditing |
| Integrated AES-128 encryption engine | Accelerates secure boot, firmware update signing, and encrypted meter data transmission - meets DLMS/COSEM security requirements |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Installed in residential/commercial 3-phase 4-wire star-connected utility meters for kWh/kVARh billing. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time voltage/current sampling, harmonic analysis, tariff calculation, and secure data logging. Use Value: Meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S accuracy requirements with single calibration across 40–70 Hz line frequencies. | Use Scenario: Embedded in industrial submetering gateways tracking energy consumption per production line or HVAC zone. IC Role / Device Role / Timing Role: High-resolution energy accumulator with timestamped event logging and Modbus RTU over UART interface. Use Value: Delivers 24-bit resolution and <0.1% error over 2000:1 dynamic range - enabling detection of low-load standby consumption and transient demand spikes. |
| Anti-Tampering Smart Meter | Secure Firmware-Upgradeable Meter |
Use Scenario: Deployed in regions with high meter-tampering risk requiring physical and logical security enforcement. IC Role / Device Role / Timing Role: Performs real-time tamper detection (cover removal, magnetic field, clock fault), secure boot, and encrypted parameter storage. Use Value: Integrated RTC tamper detect pin, password-protected registers, and AES-128 enable compliance with EN 13757-3 and IEC 62056-53 security mandates. | Use Scenario: Used in AMI deployments where remote firmware updates must be authenticated and integrity-verified. IC Role / Device Role / Timing Role: Executes secure bootloader with public-key signature verification and encrypted image decryption before execution. Use Value: Hardware AES-128 and dedicated ROM-based BSL eliminate need for external crypto co-processors - reducing BOM cost and attack surface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6766AIPZ | 100-pin LQFP package (62 I/Os); identical core specs but reduced LCD segment count (240 vs 320) | Suitable for compact meters with smaller displays or fewer sensor channels | Select when board space is constrained and full 320-segment LCD support is unnecessary |
| MSP430F6767AIPZR | Same 128-pin LQFP package; 256KB flash + 32KB RAM (vs 16KB RAM in MSP430F6766AIPZR) | Required for complex firmware with multiple communication stacks (DLMS + MBus + RF) and extended data logging | Choose when additional RAM is needed for large calibration tables or multi-protocol firmware |
Compared with MSP430F6766AIPZ and MSP430F6767AIPZR, the MSP430F6766AIPZR balances metrology performance, LCD capability, and memory footprint for cost-sensitive 3-phase meters requiring full 320-segment display support and 16KB runtime buffer space.
Availability
MSP430F6766AIPZR is available at Aetrix Electronics and suitable for smart electricity meters, revenue-grade energy monitors, anti-tampering utility meters, and secure firmware-upgradeable metering systems requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F6766AIPZR 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 delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.
The MSP430F6766AIPZR belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for high-accuracy, low-power energy measurement in revenue-grade smart meters and grid-edge monitoring devices.
FAQ
What is the maximum number of LCD segments supported by the MSP430F6766AIPZR?
The MSP430F6766AIPZR supports up to 320 LCD segments via its integrated LCD_C peripheral, using 8 COM lines and up to 40 SEG lines. This capability is enabled in the 128-pin LQFP (PEU) package variant and requires proper configuration of LCDCAP, COMx, and SEGx pins with external capacitor biasing.
Does the MSP430F6766AIPZR support hardware-accelerated AES encryption?
Yes, the MSP430F6766AIPZR includes a dedicated hardware AES-128 module that performs encryption/decryption operations without CPU intervention. This enables secure firmware updates, encrypted data logging, and DLMS/COSEM-compliant communication while maintaining ultra-low-power operation in LPM3.
How many independent sigma-delta ADCs does the MSP430F6766AIPZR integrate?
The MSP430F6766AIPZR integrates six independent 24-bit SD24_B sigma-delta ADCs, each with differential inputs and programmable gain. These are used for simultaneous sampling of phase A/B/C and neutral voltage/current signals in 3-phase 4-wire metering topologies.
What is the standby current consumption of the MSP430F6766AIPZR in LPM3 mode?
In LPM3 (standby mode), the MSP430F6766AIPZR consumes 2.1 µA at 3 V with RTC active and LCD disabled. This ultra-low quiescent current enables extended battery life during AC mains failure while retaining critical timekeeping and volatile register state.
Which communication interfaces are available on the MSP430F6766AIPZR for smart meter connectivity?
The MSP430F6766AIPZR provides six enhanced universal serial communication interfaces (eUSCI): four eUSCI_A modules supporting UART, IrDA, and SPI; and two eUSCI_B modules supporting SPI and I²C. These enable concurrent PLC, RF, optical port, and HAN connectivity in modern AMI deployments.
MSP430F6766AIPZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
MSP430F6766AIPZR FAQ
1.How can I place an order for MSP430F6766AIPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6766AIPZR 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 MSP430F6766AIPZR reliable?
The price and inventory of MSP430F6766AIPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6766AIPZR is usually 5 days.
3.What payment methods are accepted for MSP430F6766AIPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6766AIPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6766AIPZR?
MSP430F6766AIPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6766AIPZR 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 MSP430F6766AIPZR?
For technical support, including MSP430F6766AIPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6766AIPZR requirements.
6.How does Aetrix verify that MSP430F6766AIPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F6766AIPZR 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 MSP430F6766AIPZR meets industry standards.
7.What is the process for return or replacement of MSP430F6766AIPZR?
All MSP430F6766AIPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6766AIPZR, 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 MSP430F6766AIPZR part is unused and in its original packaging.
Return procedure for MSP430F6766AIPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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