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Texas Instruments MSP430F67461IPEUR
- Part No.:
- MSP430F67461IPEUR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F67461IPEUR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,295
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Product details
Overview
MSP430F67461IPEUR from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring four 24-bit sigma-delta ADCs, 256KB flash, 16KB RAM, and ultra-low-power operation (0.18 µA in LPM4.5). It supports ANSI C12.20 and IEC 62053 compliance, 3-phase + neutral energy measurement, and digital phase correction for current transformers.
For engineers reviewing the MSP430F67461IPEUR datasheet, MSP430F67461IPEUR pinout, MSP430F67461IPEUR application, or MSP430F67461IPEUR equivalent, key selection criteria include its 128-pin LQFP package, 90 GPIO count, 4-channel SD24_B ADC configuration, RTC with temperature compensation, and integrated LCD controller supporting up to 320 segments - all critical for utility-grade meter design.
Technical Context
The MSP430F67461IPEUR implements a dedicated metering subsystem with four independent 24-bit sigma-delta modulators optimized for simultaneous voltage/current sampling across three phases and neutral. Its 25-MHz CPU with 32-bit hardware multiplier executes TI's energy measurement software library for real-time active/reactive power, RMS, and harmonic calculations.
It integrates dual auxiliary supply domains (AUXVCC1–AUXVCC3) for isolated analog front-end biasing, supports flexible clocking via XT1 (32.768 kHz crystal), DCO, and REFO, and features programmable low-power modes including LPM3.5 (0.34 µA RTC mode) and LPM4.5 (0.18 µA shutdown) with sub-5 µs wake-up latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB single-cycle flash - enables full energy measurement firmware, tariff management, and communication stack storage without external memory. |
| RAM | 16 KB single-cycle RAM - supports real-time data buffering for multi-phase waveform capture and harmonic analysis. |
| Sigma-Delta ADCs | 4 × 24-bit SD24_B converters - provides dedicated channels for phase A/B/C and neutral current/voltage sensing with >0.1% accuracy over 2000:1 dynamic range. |
| Supply Current (LPM4.5) | 0.18 µA at 3 V - ensures >1 year backup runtime on coin-cell during AC mains failure while retaining critical metering state. |
| Operating Voltage | 1.8 V to 3.6 V - allows direct connection to standard 3.3 V or 3.0 V meter power rails without regulation overhead. |
| Package | 128-pin LQFP (PEU), 20 mm × 14 mm - delivers 90 GPIOs for sensor interfaces, pulse outputs, LCD segments, and multiple serial peripherals. |
| Temperature Range | –40°C to +85°C - qualified for outdoor utility meter enclosures and industrial energy monitoring environments. |
Pinout & Package
Package: 128-pin LQFP (PEU), 20 mm × 14 mm body size, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0 / SD0N0 | Differential input channel 0 | Primary current/voltage sensing pair for Phase A; supports shunt/CT/Rogowski inputs with programmable gain. |
| SD1P0 / SD1N0 | Differential input channel 1 | Phase B sensing input; synchronized sampling with SD0 ensures accurate inter-phase angle measurement. |
| SD2P0 / SD2N0 | Differential input channel 2 | Phase C sensing input; enables full 3-phase energy calculation including unbalanced load detection. |
| SD3P0 / SD3N0 | Differential input channel 3 | Neutral current sensing path - critical for detecting tampering and measuring residual current in 4-wire systems. |
| VREF | Reference voltage input | External precision reference (1.2 V typical) for SD24_B modulators; determines absolute measurement accuracy and linearity. |
| COM0–COM7 | LCD segment commons | Drive up to 8 LCD backplanes for multiplexed display of kWh, kVARh, voltage, current, and tariff indicators. |
| P1.0 / P1.1 | Analog inputs (VeREF−/VeREF+) | Internal reference buffer inputs; used to stabilize SD24_B reference when external VREF is not applied. |
| AUXVCC1–AUXVCC3 | Auxiliary supply pins | Isolated analog domain supplies enabling noise-free ADC operation and independent biasing of metrology front-end. |
Key Features
| Feature | Design Value |
|---|---|
| ANSI/IEC Compliance | Meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S requirements out-of-box with TI energy library calibration. |
| Digital Phase Correction | Compensates CT-induced phase shift in real time using on-chip DSP, eliminating need for external analog correction networks. |
| Four-Quadrant Measurement | Supports bidirectional energy flow per phase (import/export) and cumulative net energy - essential for solar feed-in and EV charging metering. |
| Temperature-Compensated RTC | Real-time clock with crystal offset calibration and on-die temperature sensor maintains ±2 ppm accuracy across –40°C to +85°C. |
| Anti-Tamper Security | Integrated tamper detect circuitry monitors case opening, magnetic fields, and power anomalies; triggers secure event logging and alert outputs. |
Applications
| Smart Electricity Meter | Industrial Energy Monitor |
|---|---|
Use Scenario: Revenue-grade 3-phase 4-wire meter installed at commercial building main service entrance. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time active/reactive energy accumulation, tariff switching, and pulse output generation. Use Value: Delivers <0.1% error over 2000:1 dynamic range at 50/60 Hz, meeting ANSI C12.20 Class 0.2 without external calibration components. | Use Scenario: Panel-mounted energy analyzer tracking consumption per production line in automotive plant. IC Role / Device Role / Timing Role: High-accuracy power quality monitor capturing harmonics, THD, and voltage sags/swells using onboard 24-bit ADCs and FFT-capable CPU. Use Value: Enables precise load profiling and predictive maintenance via 4-channel synchronized sampling at 8 kSPS per channel. |
| Renewable Integration Meter | AMI Gateway Node |
Use Scenario: Bi-directional meter at residential PV inverter interface feeding excess generation to grid. IC Role / Device Role / Timing Role: Four-quadrant energy accumulator with independent import/export registers and anti-tamper event logging. Use Value: Supports net metering billing with certified accuracy and secure audit trail for regulatory compliance and dispute resolution. | Use Scenario: Communication hub aggregating data from multiple sub-meters in smart campus deployment. IC Role / Device Role / Timing Role: Host processor managing UART/SPI/I²C interfaces to PLC, RF, or NB-IoT modems while maintaining local time-stamped energy logs. Use Value: Six configurable eUSCI ports enable concurrent HAN (Home Area Network) and WAN (Wide Area Network) connectivity without external bridge ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F67471IPEUR | 32 KB RAM vs. 16 KB; identical 256 KB flash, 4 SD24_B ADCs, same package and pinout. | Higher RAM enables extended waveform logging, larger firmware feature sets, or concurrent communication stacks. | Select when additional buffer space is required for harmonic analysis buffers or multi-protocol firmware. |
| MSP430F67661IPEUR | 6 SD24_B ADCs (vs. 4), 256 KB flash, 16 KB RAM, same 128-pin LQFP package. | Extra ADC channels support advanced configurations like dual CT per phase or auxiliary voltage monitoring. | Select when expanding metrology capability beyond 3-phase+neutral - e.g., for transformer health monitoring or DC coupling. |
Compared with MSP430F67461IPEUR, MSP430F67471IPEUR offers double RAM for enhanced data logging without changing PCB layout, while MSP430F67661IPEUR adds two more SD24_B channels for expanded sensor coverage - both retain identical power profiles and metrology accuracy.
Availability
MSP430F67461IPEUR is available at Aetrix Electronics and suitable for smart electricity meters, industrial energy monitors, and renewable integration meters requiring stable component supply, long-term lifecycle support, and traceable sourcing for utility-certified designs.
Supply support for MSP430F67461IPEUR 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 for industrial, automotive, and consumer applications.
The MSP430F674x1 product line is engineered specifically for revenue-grade polyphase metering, integrating metrology ADCs, low-power processing, and utility-compliant security into a single SoC to reduce BOM cost and certification effort.
FAQ
What metrology standards does the MSP430F67461IPEUR meet?
The MSP430F67461IPEUR meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S accuracy requirements when used with TI's energy measurement software library and calibrated reference design. Its 24-bit sigma-delta ADCs achieve <0.1% error over 2000:1 dynamic range at 40–70 Hz, satisfying global utility certification mandates without external trimming components.
How many analog input channels does the MSP430F67461IPEUR support for energy measurement?
The MSP430F67461IPEUR supports four independent 24-bit sigma-delta ADC channels (SD0–SD3) configured as differential inputs. These are intended for simultaneous sampling of phase A, B, C, and neutral currents/voltages in 3-phase 4-wire metering topologies, enabling full four-quadrant energy calculation and harmonic analysis per channel.
What low-power modes are available on the MSP430F67461IPEUR and their typical current draw?
The MSP430F67461IPEUR offers multiple low-power modes: LPM3 (standby) draws 2.1 µA at 3 V with RTC active; LPM3.5 (RTC-only) consumes 0.34 µA; and LPM4.5 (shutdown) uses just 0.18 µA while retaining register state. All modes support wake-up in under 5 µs, enabling rapid response to metering events or communication interrupts.
Does the MSP430F67461IPEUR include an integrated LCD controller?
Yes, the MSP430F67461IPEUR includes a built-in LCD controller supporting up to 320 segments with contrast control and static/multiplexed drive. It drives COM0–COM7 and SEG0–SEG319 pins directly, eliminating external display drivers and reducing bill-of-materials cost in utility meter displays.
What communication interfaces are integrated into the MSP430F67461IPEUR?
The MSP430F67461IPEUR integrates six enhanced universal serial communication interfaces (eUSCI), configurable as four UARTs, six SPIs, or two I²C ports. This flexibility supports concurrent connections to AMR/AMI modules (e.g., PLC or RF transceivers), optical ports, and internal peripherals without external protocol bridges.
MSP430F67461IPEUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 128-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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, 4x24b Sigma Delta Converter
- Number of I/O:
- 90
- 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:
MSP430F67461IPEUR FAQ
1.How can I place an order for MSP430F67461IPEUR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F67461IPEUR 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 MSP430F67461IPEUR reliable?
The price and inventory of MSP430F67461IPEUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F67461IPEUR is usually 5 days.
3.What payment methods are accepted for MSP430F67461IPEUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F67461IPEUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F67461IPEUR?
MSP430F67461IPEUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F67461IPEUR 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 MSP430F67461IPEUR?
For technical support, including MSP430F67461IPEUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F67461IPEUR requirements.
6.How does Aetrix verify that MSP430F67461IPEUR is sourced from the original manufacturer or authorized distributors?
All MSP430F67461IPEUR 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 MSP430F67461IPEUR meets industry standards.
7.What is the process for return or replacement of MSP430F67461IPEUR?
All MSP430F67461IPEUR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F67461IPEUR, 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 MSP430F67461IPEUR part is unused and in its original packaging.
Return procedure for MSP430F67461IPEUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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