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Texas Instruments MSP430F67771AIPZ
- Part No.:
- MSP430F67771AIPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F67771AIPZ.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,183
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Product details
Overview
MSP430F67771AIPZ from Texas Instruments is a polyphase metering SoC designed for high-accuracy 3-phase energy measurement in utility-grade smart 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/32KB RAM, LCD controller (320 segments), and dual eUSCI modules supporting UART/I²C/SPI. It meets ANSI C12.20 and IEC 62053 standards and supports CT, Rogowski, or shunt current sensing.
For engineers reviewing the MSP430F67771AIPZ datasheet, MSP430F67771AIPZ pinout, MSP430F67771AIPZ application, or MSP430F67771AIPZ equivalent, key selection criteria include metrology ADC channel count, RTC tamper detection, pulse output capability for active/reactive energy calibration, low-power LPM3.5 mode (0.34 µA), and 100-pin LQFP package compatibility with existing meter PCB layouts.
Technical Context
The MSP430F67771AIPZ implements a dedicated metrology subsystem with independent SD24_B converters per phase, enabling simultaneous 3-phase + neutral power calculation. Its analog front-end includes digital phase correction for CTs, 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 timers (nine capture/compare registers), six eUSCIs (four UART/IrDA/SPI + two SPI/I²C), and password-protected RTC with crystal offset calibration - all coordinated by the 25-MHz CPU to execute TI's Energy Measurement Software Library for real-time kWh/kVArh computation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB - sufficient for full metrology firmware, communication stacks, and secure boot code in Class 0.2 smart meters. |
| RAM | 32 KB - enables real-time buffering of 3-phase waveform samples and multi-cycle energy accumulation without external memory. |
| Sigma-Delta ADCs | 7 × 24-bit - supports simultaneous measurement of 3-phase voltages, 3-phase currents, and neutral current with <0.1% error over 2000:1 dynamic range. |
| Low-Power Mode LPM3.5 | 0.34 µA at 3 V - sustains RTC and tamper detection during AC mains failure while retaining critical time/date data. |
| LCD Driver | 320-segment support - drives full-feature meter displays including tariff indicators, status icons, and multi-line numeric readouts. |
| eUSCI Interfaces | 4 × eUSCI_A (UART/IrDA/SPI) + 2 × eUSCI_B (SPI/I²C) - enables concurrent HAN (e.g., PLC or RF via UART), DLMS/COSEM (via I²C to security IC), and optical port (IrDA) communication. |
| Package | 100-pin LQFP (PZ) - 14 mm × 14 mm footprint with 62 GPIOs, optimized for compact meter designs requiring isolation between analog metrology and digital comms sections. |
Pinout & Package
100-pin LQFP (PZ) package with 14 mm × 14 mm body size and 0.5 mm pitch. Designed for industrial metering applications requiring thermal stability and board-level EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN / XOUT | 32.768 kHz crystal oscillator input/output | Provides precise timing reference for RTC and metrology sampling synchronization; requires external 12.5 pF load capacitors. |
| VREF | Reference voltage input | Accepts stable 1.2 V or 2.0 V external reference for SD24_B ADCs to ensure metrology-grade accuracy across temperature. |
| SD0P0 / SD0N0 – SD6P0 / SD6N0 | Differential sigma-delta ADC inputs | Seven differential pairs for direct connection to current transformers, Rogowski coils, or shunt resistors - each with programmable gain and digital filtering. |
| COM0–COM7 | LCD common outputs | Eight commons drive multiplexed LCD segments up to 320 total; enable low-power static/dynamic display operation during battery backup. |
| P1.0 / P1.1 | VeREF− / VeREF+ | Internal reference buffer inputs - used to stabilize ADC reference when external VREF is not applied; supports ratiometric measurements. |
| RST/NMI/SBWTDIO | Reset / NMI / JTAG debug I/O | Single-pin multifunction interface for system reset, non-maskable interrupt, and 4-wire Spy-Bi-Wire debugging - eliminates need for separate debug header. |
Key Features
| Feature | Design Value |
|---|---|
| 4-quadrant energy measurement | Enables bidirectional power flow monitoring (import/export) per phase - essential for net metering and distributed generation compliance. |
| Dedicated pulse outputs | Hardware-generated active/reactive energy pulses (CF1/CF2) allow direct connection to mechanical test meters or LED indicators without CPU intervention. |
| RTC with tamper detection | Password-protected real-time clock includes physical tamper pins, crystal offset calibration, and temperature compensation - satisfies ANSI C12.22 security requirements. |
| Flexible power supply | Supports dual-supply operation (AVCC/DVCC) with automatic switching between AC-derived and battery backup rails - maintains metrology integrity during mains outage. |
| Energy Measurement Software Library | Pre-certified TI software stack executes on-device RMS, fundamental/ harmonic power, THD, and demand calculations - reduces firmware validation effort for ANSI/IEC certification. |
Applications
| Smart Electricity Meter | Revenue-Grade Submeter |
|---|---|
Use Scenario: Installed as the primary metrology engine in a 3-phase 4-wire residential/commercial smart meter with HAN connectivity and optical port. IC Role / Device Role / Timing Role: Performs real-time 3-phase voltage/current sampling, computes active/reactive energy (kWh/kVArh), generates calibrated pulse outputs, and manages secure timekeeping. Use Value: Delivers 0.1% accuracy over 2000:1 dynamic range while meeting ANSI C12.20 Class 0.2 and IEC 62053-22 requirements - eliminating need for external calibration hardware. | Use Scenario: Embedded in panel-mounted submeters for tenant-level energy allocation in multi-tenant buildings or industrial process lines. IC Role / Device Role / Timing Role: Measures individual circuit loads with harmonic analysis and demand logging; communicates via RS-485 (eUSCI_A) to building BMS. Use Value: On-chip 24-bit ADCs and 32KB RAM enable high-resolution waveform capture and 15-minute interval demand storage - reducing external memory and signal conditioning components. |
| AMI Endpoint Node | Grid Monitoring Sensor |
Use Scenario: Integrated into AMI endpoints that aggregate consumption data from multiple meters and transmit via RF mesh or cellular backhaul. IC Role / Device Role / Timing Role: Aggregates and time-stamps energy data from local sensors; handles DLMS/COSEM protocol stack via I²C-connected secure element. Use Value: Dual eUSCI_B interfaces allow concurrent I²C-based security IC communication and SPI-based RF transceiver control - simplifying secure data transmission architecture. | Use Scenario: Deployed in distribution transformer monitoring units to detect voltage sags, harmonics, and unbalance in real time. IC Role / Device Role / Timing Role: Samples all three phases at 8 kSps using SD24_B modulators; computes THD, flicker (Pst), and sequence components using CPU+DMA acceleration. Use Value: Seven independent sigma-delta channels enable true simultaneous sampling - avoiding inter-phase timing skew that degrades PQ analysis accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F67791AIPZ | 512 KB flash, same 7-ADC, 128-pin LQFP - adds 256 KB program space for advanced firmware features. | Preferred for next-gen meters requiring OTA updates, extended diagnostics, or multi-tariff billing logic. | Select when additional flash/RAM is needed for future-proofing; shares identical metrology IP and software library compatibility. |
| MSP430F67671AIPZ | 6 SD24_B converters (vs. 7), same 256 KB flash/32 KB RAM, 100-pin LQFP - lacks one ADC channel. | Suitable for 3-phase 3-wire meters omitting neutral current measurement. | Choose for cost-sensitive 3-wire deployments where neutral monitoring is not required; pin-compatible and software-mappable. |
Compared with MSP430F67791AIPZ, the MSP430F67771AIPZ trades flash capacity for identical metrology performance and package size; versus MSP430F67671AIPZ, it adds a seventh ADC channel for neutral current sensing - critical for 4-wire revenue metering compliance.
Availability
MSP430F67771AIPZ is available at Aetrix Electronics and suitable for smart electricity meters, revenue-grade submeters, AMI endpoint nodes, and grid monitoring sensors requiring stable component supply across multi-year utility procurement cycles.
Supply support for MSP430F67771AIPZ 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 MSP430F67771AIPZ belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for ANSI/IEC-compliant energy measurement in utility smart meters and industrial power quality analyzers.
FAQ
What is the maximum number of independent current/voltage channels supported by the MSP430F67771AIPZ?
The MSP430F67771AIPZ integrates seven independent 24-bit sigma-delta ADCs (SD24_B), enabling simultaneous acquisition of three phase voltages, three phase currents, and neutral current - fully supporting 3-phase 4-wire metering topologies with no external multiplexing required. This configuration is validated in TI's Energy Measurement Design Center for ANSI C12.20 Class 0.2 compliance.
Does the MSP430F67771AIPZ include hardware support for energy pulse outputs?
Yes, the MSP430F67771AIPZ provides dedicated hardware pulse output pins (CF1 and CF2) that generate calibrated active and reactive energy pulses synchronized to internal metrology calculations. These outputs meet IEC 62053-31 requirements and can directly drive mechanical test meters or status LEDs without CPU overhead or timer resource usage.
What low-power modes are available on the MSP430F67771AIPZ, and what is the lowest current draw?
The MSP430F67771AIPZ supports multiple low-power modes including LPM3 (2.1 µA), LPM3.5 (0.34 µA), and LPM4.5 (0.18 µA) at 3 V. In LPM3.5, the RTC remains active with tamper detection enabled while retaining RAM contents - making it ideal for battery-backed timekeeping during AC mains failure in smart meters.
How does the MSP430F67771AIPZ handle temperature compensation for energy measurements?
The MSP430F67771AIPZ performs temperature-compensated energy measurements using its integrated temperature sensor and programmable compensation coefficients stored in TLV memory. The Energy Measurement Software Library applies real-time correction to ADC gain/offset and crystal oscillator drift - ensuring <0.1% accuracy across –40°C to +85°C ambient conditions per IEC 62053-22 Annex B.
Is the MSP430F67771AIPZ pin-compatible with other devices in the F677x1A family?
Yes, the MSP430F67771AIPZ in the 100-pin LQFP (PZ) package shares identical pinout and electrical characteristics with other PZ-package variants in the F677x1A family (e.g., MSP430F67791AIPZ, MSP430F67761AIPZ), enabling hardware reuse across different flash/RAM configurations without PCB redesign.
MSP430F67771AIPZ 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, 7x24b Sigma Delta Converter
- Number of I/O:
- 62
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K 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:
MSP430F67771AIPZ FAQ
1.How can I place an order for MSP430F67771AIPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F67771AIPZ 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 MSP430F67771AIPZ reliable?
The price and inventory of MSP430F67771AIPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F67771AIPZ is usually 5 days.
3.What payment methods are accepted for MSP430F67771AIPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F67771AIPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F67771AIPZ?
MSP430F67771AIPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F67771AIPZ 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 MSP430F67771AIPZ?
For technical support, including MSP430F67771AIPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F67771AIPZ requirements.
6.How does Aetrix verify that MSP430F67771AIPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F67771AIPZ 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 MSP430F67771AIPZ meets industry standards.
7.What is the process for return or replacement of MSP430F67771AIPZ?
All MSP430F67771AIPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F67771AIPZ, 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 MSP430F67771AIPZ part is unused and in its original packaging.
Return procedure for MSP430F67771AIPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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