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Texas Instruments MSP430F67761AIPZR
- Part No.:
- MSP430F67761AIPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F67761AIPZR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,001
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Product details
Overview
MSP430F67761AIPZR 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 six eUSCI interfaces (UART/I²C/SPI). It supports ANSI C12.20 and IEC 62053 compliance in smart grid metering applications.
For engineers reviewing the MSP430F67761AIPZR datasheet, MSP430F67761AIPZR pinout, MSP430F67761AIPZR application, or MSP430F67761AIPZR equivalent, key selection criteria include metrology-grade ADC channel count, RTC tamper detection, pulse output calibration capability, low-power LPM3.5 mode (0.34 µA), and 128-pin LQFP package compatibility with EVM430-F6779 evaluation hardware.
Technical Context
The MSP430F67761AIPZR implements a dedicated metrology subsystem with independent SD24_B modulators per phase, enabling simultaneous 3-phase + neutral power calculation. Its analog front end includes digital phase correction for CT sensors, temperature-compensated energy integration, and 40–70 Hz line frequency support using single-point calibration.
Digital architecture features three-channel DMA, 16-bit CRC, four 16-bit timers (nine capture/compare registers), and dual-domain power management (AVCC/DVCC/VCORE) to isolate metrology analog paths from digital noise-critical for sub-0.1% accuracy under varying load and temperature conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | Seven independent 24-bit sigma-delta ADCs for simultaneous voltage/current sampling across 3 phases + neutral |
| Energy Accuracy | < 0.1% error over 2000:1 dynamic range per phase-meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.2 |
| CPU & Memory | 25-MHz MSP430 CPU with 32-bit hardware multiplier; 256KB flash (single-cycle), 16KB RAM (single-cycle) |
| Low-Power Modes | LPM3: 2.1 µA @ 3 V; LPM3.5 (RTC active): 0.34 µA; LPM4.5 (shutdown): 0.18 µA-enables >10-year battery backup |
| Communication | Six eUSCI modules: four UART/IrDA/SPI (eUSCI_A0–A3), two SPI/I²C (eUSCI_B0–B1)-supports HAN, PLC, and optical port interfaces |
| LCD Driver | Up to 320 segments with programmable contrast control and integrated charge pump-eliminates external bias circuitry |
| Security & RTC | Password-protected RTC with tamper detection, crystal offset calibration, and temperature compensation-prevents meter fraud and drift |
Pinout & Package
Package: 128-pin LQFP (PEU), 20 mm × 14 mm body size, 0.5 mm pitch, 90 GPIOs. Thermal pad not present. Compatible with standard reflow profiles (JEDEC J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0/SD0N0–SD6P0/SD6N0 | Sigma-delta ADC differential inputs | Seven dedicated differential input pairs for phase A/B/C voltage/current and neutral sensing-no external signal conditioning required |
| VREF | Reference voltage input | External 2.5 V reference for SD24_B modulators-enables stable metrology accuracy across supply and temperature variation |
| COM0–COM7 | LCD common outputs | Eight LCD commons supporting up to 320-segment multiplexed display-integrated charge pump reduces BOM cost |
| eUSCI_A0–A3, B0–B1 | Serial interface pins | Configurable UART/IrDA/SPI or SPI/I²C-supports dual communication stacks (e.g., PLC + optical port) without external bridges |
| RST/NMI/SBWTDIO | Reset/debug interface | 4-wire JTAG/SBW debug port with non-intrusive real-time trace-enables field firmware updates and metrology calibration validation |
Key Features
| Feature | Design Value |
|---|---|
| Digital phase correction | Compensates CT-induced phase shift in real time-maintains <0.1° angle error at 50/60 Hz without hardware trimming |
| Pulse output pins | Dedicated active/reactive energy pulse outputs with programmable scaling-enables direct connection to LED calibration indicators |
| 4-quadrant measurement | Supports bidirectional energy flow per phase (import/export) and cumulative-required for net-metering and distributed generation |
| Temperature-compensated RTC | On-chip temperature sensor calibrates RTC crystal drift-guarantees ±2 ppm accuracy from –40°C to +85°C |
| Automatic supply switching | Seamlessly transitions between AC mains and backup battery-preserves meter state and time during outages without external supervisors |
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 voltage/current sampling, harmonic analysis, tariff calculation, and secure data logging. Use Value: Enables Class 0.2 accuracy per IEC 62053-22 with single-chip integration-reduces BOM by 30% vs. discrete ADC + MCU solutions. | Use Scenario: Embedded in industrial panel-mounted energy analyzers for real-time power quality monitoring. IC Role / Device Role / Timing Role: High-resolution measurement engine capturing RMS, THD, PF, and unbalance metrics at 16 kSps aggregate rate. Use Value: Seven synchronized 24-bit ADCs eliminate inter-channel skew-ensures phase-angle coherence critical for IEEE 519 compliance reporting. |
| Anti-Tamper Smart Grid Node | Multi-Utility AMI Endpoint |
Use Scenario: Deployed in tamper-resistant meters with physical intrusion detection and cryptographic key storage. IC Role / Device Role / Timing Role: Secure runtime environment with password-protected RTC, tamper-detect pins, and memory protection units. Use Value: Hardware-enforced security prevents clock manipulation and firmware rollback-meets ANSI C12.22 and DLMS/COSEM security requirements. | Use Scenario: Integrated into multi-service AMI endpoints supporting electricity, gas, and water metering over shared RF/PLC infrastructure. IC Role / Device Role / Timing Role: Central processing unit managing concurrent metrology, communication stack scheduling, and secure OTA updates. Use Value: Six eUSCI interfaces enable concurrent HAN (I²C), PLC (SPI), and optical port (UART)-reduces need for external protocol bridges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F67761AIPZ | Same core, 100-pin LQFP (PZ), 62 GPIOs, identical flash/RAM/ADC specs | Reduced I/O count and smaller PCB footprint-suitable for space-constrained single-phase or compact 3-phase designs | Select when board area is constrained and fewer peripherals (e.g., no secondary LCD or dual comms) are needed. |
| MSP430F67771AIPZR | Same 128-pin LQFP package but with 256KB flash/32KB RAM (vs. 16KB RAM in MSP430F67761AIPZR) | Enables larger firmware (e.g., DLMS stack + advanced diagnostics) without external memory-higher bill-of-materials cost | Select when extended firmware features (multi-tariff, waveform capture, cybersecurity modules) require >16KB RAM. |
Compared with MSP430F67761AIPZR, the PZ variant trades I/O for compactness while the F67771AIPZR adds RAM headroom for complex communication stacks-both retain identical metrology performance and calibration infrastructure.
Availability
MSP430F67761AIPZR is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, and anti-tamper AMI endpoint applications requiring stable component supply across 10+ year utility deployment lifecycles.
Supply support for MSP430F67761AIPZR 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 precision metrology and ultra-low-power design.
The MSP430F67761AIPZR belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for ANSI/IEC-compliant energy measurement systems where accuracy, security, and long-term reliability are non-negotiable.
FAQ
What metrology standards does the MSP430F67761AIPZR meet?
The MSP430F67761AIPZR meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.2 accuracy requirements for active energy measurement. Its 24-bit sigma-delta ADCs achieve <0.1% error over 2000:1 dynamic range, and built-in digital phase correction ensures compliance under distorted waveform conditions per IEC 61000-4-7.
Does the MSP430F67761AIPZR support tamper detection and secure timekeeping?
Yes. The MSP430F67761AIPZR integrates a password-protected real-time clock (RTC) with dedicated tamper-detect pins, crystal offset calibration, and temperature compensation. These features ensure time integrity and prevent unauthorized clock manipulation-critical for revenue-grade metering and forensic audit logging in the MSP430F67761AIPZR.
How many independent ADC channels does the MSP430F67761AIPZR provide for 3-phase measurement?
The MSP430F67761AIPZR provides seven independent 24-bit sigma-delta ADC channels via its SD24_B module. This enables simultaneous sampling of three phase voltages, three phase currents, and neutral current-fully supporting 3-phase 4-wire star configurations without multiplexing or timing skew in the MSP430F67761AIPZR.
What low-power modes are available on the MSP430F67761AIPZR and their typical current draw?
The MSP430F67761AIPZR offers LPM3 (2.1 µA @ 3 V), LPM3.5 with RTC active (0.34 µA), and LPM4.5 shutdown mode (0.18 µA). These ultra-low quiescent currents enable >10-year battery backup for metrology functions and real-time clock operation-key for maintaining accuracy during AC mains failure in the MSP430F67761AIPZR.
Can the MSP430F67761AIPZR drive a large LCD display without external components?
Yes. The MSP430F67761AIPZR integrates an LCD controller supporting up to 320 segments with programmable contrast and an internal charge pump. This eliminates the need for external bias generators or voltage boosters-reducing system cost and board space while maintaining display readability across temperature in the MSP430F67761AIPZR.
MSP430F67761AIPZR 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, 7x24b 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:
MSP430F67761AIPZR FAQ
1.How can I place an order for MSP430F67761AIPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F67761AIPZR 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 MSP430F67761AIPZR reliable?
The price and inventory of MSP430F67761AIPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F67761AIPZR is usually 5 days.
3.What payment methods are accepted for MSP430F67761AIPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F67761AIPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F67761AIPZR?
MSP430F67761AIPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F67761AIPZR 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 MSP430F67761AIPZR?
For technical support, including MSP430F67761AIPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F67761AIPZR requirements.
6.How does Aetrix verify that MSP430F67761AIPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F67761AIPZR 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 MSP430F67761AIPZR meets industry standards.
7.What is the process for return or replacement of MSP430F67761AIPZR?
All MSP430F67761AIPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F67761AIPZR, 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 MSP430F67761AIPZR part is unused and in its original packaging.
Return procedure for MSP430F67761AIPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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