My Inquiry
My Account
Texas Instruments MSP430F67671AIPEU
- Part No.:
- MSP430F67671AIPEU
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F67671AIPEU.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,636
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430F67671AIPEU from Texas Instruments is a polyphase metering SoC designed for high-accuracy energy measurement in 3-phase utility meters. It integrates six 24-bit sigma-delta ADCs, a 25-MHz CPU with 32-bit multiplier, 256KB flash/32KB RAM, LCD controller (320 segments), and dual eUSCI_A/B interfaces. It meets ANSI C12.20 and IEC 62053 standards and supports CT, Rogowski, and shunt current sensing.
For engineers reviewing the MSP430F67671AIPEU datasheet, MSP430F67671AIPEU pinout, MSP430F67671AIPEU application, or MSP430F67671AIPEU equivalent, key selection criteria include metrology accuracy (<0.1% over 2000:1 dynamic range), RTC tamper detection, ultra-low-power LPM3.5 mode (0.34 µA), SD24_B channel count, and 128-pin LQFP package compatibility with EVM430-F6779 evaluation hardware.
Technical Context
The MSP430F67671AIPEU implements a dedicated metrology subsystem with six independent SD24_B sigma-delta modulators-each supporting differential inputs, programmable gain, and digital phase correction-enabling simultaneous voltage/current sampling across three phases plus neutral. Its real-time calculation engine performs active/reactive power, energy accumulation, and harmonic analysis entirely in firmware using the Energy Measurement Software Library.
Power management includes automatic supply switching between AC mains and backup battery, with LCD operation at 3 µA in LPM3 and RTC retention at 0.34 µA in LPM3.5. The device uses dual-domain power architecture: AVCC/AVSS for analog precision, DVCC/DVSS for digital logic, and dedicated AUXVCC rails for sigma-delta modulator biasing and reference stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB single-cycle access - sufficient for full metrology library, communication stacks, and firmware updates without external storage. |
| RAM | 32 KB single-cycle access - supports real-time buffering of 24-bit ADC samples, FFT computation, and multi-protocol stack operation. |
| Sigma-Delta ADCs | 6 × 24-bit SD24_B channels - enables concurrent measurement of 3-phase voltage + 3-phase current with >100 dB SNR and <0.1% error over 2000:1 dynamic range. |
| CPU Speed | 25 MHz MSP430 core with 32-bit hardware multiplier - executes metrology calculations (e.g., RMS, THD, power factor) in deterministic sub-millisecond latency. |
| Low-Power Mode LPM3.5 | 0.34 µA at 3 V - maintains RTC, tamper detection, and crystal calibration during AC mains failure with minimal battery drain. |
| LCD Driver | Up to 320 segments with contrast control - drives large-format utility meter displays without external segment drivers or boost converters. |
| eUSCI Interfaces | 4 × UART/IrDA/SPI (eUSCI_A0–A3) + 2 × SPI/I²C (eUSCI_B0–B1) - supports HAN, PLC, optical port, and secure bootloader via multiple concurrent protocols. |
Pinout & Package
128-pin LQFP (PEU) package, 20 mm × 14 mm body size, 0.5 mm pitch, 90 GPIOs. Requires external connection of VDSYS1–VDSYS2 and VASYS1–VASYS2 pairs per TI design guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0 / SD0N0 – SD3P0 / SD3N0 | Differential inputs for SD24_B channels 0–3 | Accept ±2.5 V differential signals from current transformers or shunts; support 1×–32× programmable gain for direct high-resolution current sensing. |
| SD4P0 / SD4N0, SD5P0 / SD5N0 | Differential inputs for SD24_B channels 4–5 | Reserved for neutral current and auxiliary voltage monitoring; share same precision reference and calibration path as phase channels. |
| VREF | External reference input | Accepts stable 1.2 V or 2.5 V reference to set full-scale range for all SD24_B converters; enables temperature-compensated metrology accuracy. |
| COM0–COM7 | LCD common outputs | Drive up to 8 multiplexed LCD backplanes; used with segment pins (e.g., P1.6/COM2, P5.0/COM4) to implement 320-segment display with software-controlled contrast. |
| RST/NMI/SBWTDIO | Reset, NMI, and JTAG debug I/O | Single pin supports cold reset, non-maskable interrupt, and 4-wire Spy-Bi-Wire programming - eliminates need for separate debug header on production meters. |
Key Features
| Feature | Design Value |
|---|---|
| Password-protected RTC with tamper detection | Prevents unauthorized clock manipulation in revenue-grade meters; logs tamper events to secure memory and triggers zeroization of critical registers. |
| Digital phase correction for CTs | Compensates for current transformer phase lag in firmware using calibrated delay coefficients - eliminates external analog compensation networks. |
| 4-quadrant energy measurement | Calculates active/reactive energy independently per phase and cumulatively - required for bidirectional grid-tie and net-metering applications. |
| Pulse output pins for calibration | Dedicated active/reactive energy pulse outputs (e.g., P1.0/TA1.1, P1.1/TA2.1) provide metrologically traceable 1–10 kHz pulses for field calibration against standard watt-hour meters. |
| Temperature-compensated energy measurement | On-chip temperature sensor feeds real-time correction coefficients into energy calculation engine - maintains <0.1% accuracy across –40°C to +85°C ambient. |
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 and demand response. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time voltage/current sampling, RMS/power/energy computation, and secure data logging. Use Value: Meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S requirements with single-chip integration - reduces BOM cost by eliminating external ADCs, RTCs, and crypto co-processors. |
Use Scenario: Embedded in industrial submetering panels to track energy consumption per machine or production line. IC Role / Device Role / Timing Role: High-precision energy accumulator with harmonic analysis and time-of-use (TOU) tariff support via RTC and calendar functions. Use Value: Six SD24_B channels enable simultaneous measurement of 3-phase supply + neutral leakage current - detects ground faults and unbalanced loading with <1 mA resolution. |
| Grid Edge Sensor Node | AMI Endpoint with Tamper Protection |
|
Use Scenario: Deployed in distribution transformers or switchgear to monitor voltage sags, swells, harmonics, and power quality metrics. IC Role / Device Role / Timing Role: Real-time waveform capture engine using DMA-driven SD24_B sampling at 8 kSPS per channel, synchronized to 50/60 Hz line frequency. Use Value: On-chip 16-bit CRC module validates integrity of sampled waveforms before transmission - ensures data trustworthiness in IEEE 1547-compliant DER monitoring. |
Use Scenario: Used in advanced metering infrastructure (AMI) endpoints where physical security and firmware integrity are mandated. IC Role / Device Role / Timing Role: Secure metering controller with password-protected RTC, crystal offset calibration, and tamper-detect pins tied to enclosure switches. Use Value: Tamper detection triggers immediate zeroization of billing registers and logs event timestamp to protected memory - satisfies DLMS/COSEM security profile requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F67691AIPEU | 512 KB flash, 32 KB RAM, 7 SD24_B channels - adds one extra sigma-delta converter for redundant neutral sensing or auxiliary voltage monitoring. | Required when system-level redundancy or extended harmonic analysis (e.g., up to 50th order) is mandated by utility specification. | Select MSP430F67691AIPEU if future firmware expansion (e.g., DLMS stack + OTA updates) or additional metrology channels are needed; otherwise MSP430F67671AIPEU optimizes cost. |
| MSP430F67681AIPEU | 512 KB flash, 16 KB RAM, 6 SD24_B channels - identical metrology capability but halved RAM for simpler firmware or reduced memory footprint. | Suitable for basic kWh/kVARh meters without advanced diagnostics, waveform capture, or multi-tariff TOU logging. | Choose MSP430F67681AIPEU when RAM usage remains below 12 KB and no concurrent protocol stacks (e.g., PRIME + M-Bus) are required - lowers bill-of-materials cost. |
Compared with MSP430F67691AIPEU and MSP430F67681AIPEU, the MSP430F67671AIPEU delivers optimal balance of metrology performance (6 SD24_B, 256 KB flash) and memory headroom (32 KB RAM) for mid-tier smart meters requiring full ANSI/IEC compliance without over-provisioning.
Availability
MSP430F67671AIPEU is available at Aetrix Electronics and suitable for smart electricity meters, revenue-grade energy monitors, grid-edge sensor nodes, and AMI endpoints requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F67671AIPEU 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 specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in precision measurement and low-power systems.
The MSP430F67671AIPEU belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for high-accuracy, ultra-low-power energy measurement in utility-grade smart meters and industrial power analyzers.
FAQ
What metrology standards does the MSP430F67671AIPEU meet?
The MSP430F67671AIPEU meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S accuracy requirements for active energy measurement. Its six 24-bit sigma-delta ADCs, temperature-compensated calculation engine, and digital phase correction ensure <0.1% error over 2000:1 dynamic range - validated under full 3-phase 4-wire test conditions per IEC 62053-31 Annex B.
Does the MSP430F67671AIPEU support tamper detection and secure RTC operation?
Yes, the MSP430F67671AIPEU includes a password-protected real-time clock (RTC) with dedicated tamper-detect pins (e.g., RTCCLK, TACLK), crystal offset calibration, and temperature compensation. Tamper events trigger immediate register zeroization and timestamped logging to protected memory - fulfilling DLMS/COSEM security profile Level 2 requirements for revenue-grade meters.
How many sigma-delta ADC channels does the MSP430F67671AIPEU integrate?
The MSP430F67671AIPEU integrates six independent 24-bit SD24_B sigma-delta ADC channels. These support differential inputs, programmable gain (1×–32×), and digital phase correction - enabling simultaneous high-accuracy measurement of three phase voltages, three phase currents, and optional neutral current in a single-chip solution.
What low-power modes are available on the MSP430F67671AIPEU for battery-backed operation?
The MSP430F67671AIPEU offers RTC mode (LPM3.5) at 0.34 µA and shutdown mode (LPM4.5) at 0.18 µA - both retaining RTC timekeeping and tamper detection during AC mains failure. Its LCD operates at just 3 µA in LPM3, allowing extended battery life in portable or backup-powered meter designs.
Is the MSP430F67671AIPEU pin-compatible with other devices in the F676x1A family?
Yes, the MSP430F67671AIPEU shares identical 128-pin LQFP (PEU) package, pinout, and peripheral mapping with all F676x1A variants including MSP430F67691AIPEU and MSP430F67681AIPEU. This enables hardware reuse across product tiers - only flash/RAM/SD24_B count differ, requiring only firmware update for migration.
MSP430F67671AIPEU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 128-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tube
- 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:
- 90
- 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:
MSP430F67671AIPEU FAQ
1.How can I place an order for MSP430F67671AIPEU through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F67671AIPEU 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 MSP430F67671AIPEU reliable?
The price and inventory of MSP430F67671AIPEU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F67671AIPEU is usually 5 days.
3.What payment methods are accepted for MSP430F67671AIPEU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F67671AIPEU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F67671AIPEU?
MSP430F67671AIPEU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F67671AIPEU 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 MSP430F67671AIPEU?
For technical support, including MSP430F67671AIPEU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F67671AIPEU requirements.
6.How does Aetrix verify that MSP430F67671AIPEU is sourced from the original manufacturer or authorized distributors?
All MSP430F67671AIPEU 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 MSP430F67671AIPEU meets industry standards.
7.What is the process for return or replacement of MSP430F67671AIPEU?
All MSP430F67671AIPEU units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F67671AIPEU, 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 MSP430F67671AIPEU part is unused and in its original packaging.
Return procedure for MSP430F67671AIPEU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430F67671AIPEU Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
