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Texas Instruments MSP430F6747AIPZR
- Part No.:
- MSP430F6747AIPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6747AIPZR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430F6747AIPZR from Texas Instruments is a polyphase metering SoC designed for high-accuracy energy measurement in 3-phase utility meters. It integrates four independent 24-bit sigma-delta ADCs, a 25-MHz CPU with 32-bit multiplier, 256KB flash/32KB RAM, LCD controller (320 segments), and hardware AES-128 encryption - all in a 128-pin LQFP package rated for industrial temperature range (–40°C to 85°C).
For engineers reviewing the MSP430F6747AIPZR datasheet, MSP430F6747AIPZR pinout, MSP430F6747AIPZR application, or MSP430F6747AIPZR equivalent, this page delivers verified technical context, validated pin functions, real-world metrology use cases, and confirmed alternative options for ANSI C12.20/IEC 62053-compliant smart meter designs.
Technical Context
The MSP430F6747AIPZR implements a dedicated metrology subsystem with four SD24_B sigma-delta modulators supporting differential inputs and programmable gain, enabling <0.1% accuracy over 2000:1 dynamic range for phase current measurement. Its analog front end includes dedicated reference voltage (VREF) and auxiliary supply rails (AUXVCC1–3) for isolated sensor conditioning.
Digital architecture features six eUSCI modules (four UART/IrDA/SPI-capable, two SPI/I²C-capable), three-channel DMA, RTC with tamper detection and crystal offset calibration, and ultra-low-power operation: 2.1 µA in LPM3 standby, 0.34 µA in RTC mode, and 0.18 µA in shutdown mode - optimized for battery-backed metering during AC mains failure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB single-cycle flash - sufficient for full Energy Measurement Library + custom firmware + calibration data storage. |
| RAM | 32 KB single-cycle RAM - supports real-time metrology calculations, waveform capture buffers, and secure key management. |
| Sigma-Delta ADCs | 4 × 24-bit SD24_B converters - enables simultaneous 3-phase + neutral current sensing with <0.1% error across 2000:1 dynamic range. |
| ADC Input Support | Differential inputs with variable gain - accommodates current transformers, Rogowski coils, and shunt resistors without external signal conditioning. |
| Low-Power Modes | LPM3: 2.1 µA @ 3 V; LPM3.5 (RTC): 0.34 µA; LPM4.5 (shutdown): 0.18 µA - ensures >10-year battery life in backup power scenarios. |
| LCD Driver | Up to 320 segments with contrast control - drives large-format utility meter displays without external controllers. |
| CPU Core | 25-MHz 16-bit RISC CPU with integrated 32-bit hardware multiplier - executes metrology algorithms (e.g., RMS, fundamental, harmonics) in real time. |
Pinout & Package
Package: 128-pin LQFP (PEU), 20 mm × 14 mm body size, industrial temperature grade (–40°C to +85°C). Pin count: 90 GPIOs, including dedicated metrology analog inputs (SDxP/N), LCD segment/common drivers (COM0–COM7, S0–S39), and multiple eUSCI interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0 / SD0N0 | SD24_B Channel 0 differential input | Primary current sensing input for Phase A; supports ±2.5-V differential range with internal PGA. |
| SD1P0 / SD1N0 | SD24_B Channel 1 differential input | Current sensing input for Phase B; independently configurable gain and data rate. |
| SD2P0 / SD2N0 | SD24_B Channel 2 differential input | Current sensing input for Phase C; synchronized sampling with other SD24 channels. |
| SD3P0 / SD3N0 | SD24_B Channel 3 differential input | Neutral current or voltage sensing input; enables 4-quadrant cumulative energy calculation. |
| VREF | Reference voltage output | Stable 1.2-V internal reference for all SD24_B converters; eliminates need for external precision reference. |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD commons; used with segment pins (S0–S39) to support 320-segment display. |
| eUSCI_A0–A3 | UART/IrDA/SPI interfaces | Support HART, DLMS/COSEM, or optical port communication; each has dedicated RX/TX/CLK pins. |
| eUSCI_B0–B1 | SPI/I²C interfaces | Connect to external EEPROM, secure element, or sensor ICs (e.g., temperature, tamper switches). |
Key Features
| Feature | Design Value |
|---|---|
| ANSI C12.20 & IEC 62053 compliance | Validated metrology accuracy meets Class 0.2 active/reactive energy requirements without external calibration hardware. |
| Dedicated pulse outputs | Separate active/reactive energy pulse pins (e.g., P1.0/P1.1) enable direct connection to mechanical test meters for field calibration. |
| Password-protected RTC with tamper detection | Prevents clock manipulation in revenue-grade meters; includes crystal offset calibration and temperature compensation for ±2 ppm stability. |
| Hardware AES-128 encryption | Offloads cryptographic operations from CPU; secures firmware updates, meter data, and remote command authentication. |
| Digital phase correction | Compensates CT-induced phase errors in software using real-time computed angle offsets - no hardware phase-shift networks required. |
| Temperature-compensated energy measurement | Uses on-chip temperature sensor and lookup tables to correct gain/offset drift across –40°C to +85°C operating range. |
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 RMS, fundamental, harmonic, and energy accumulation calculations. Use Value: Achieves <0.1% accuracy over 2000:1 dynamic range per phase, meeting ANSI C12.20 Class 0.2 and IEC 62053-22 requirements without external calibration components. |
Use Scenario: Embedded in industrial submetering panels tracking energy consumption per production line or HVAC zone. IC Role / Device Role / Timing Role: High-precision energy accumulator with timestamped data logging via RTC and SPI-connected FRAM. Use Value: Enables accurate load profiling and demand charge optimization using 24-bit resolution and temperature-compensated measurements. |
| AMI Endpoint Node | Tamper-Resistant Grid Sensor |
|
Use Scenario: Integrated into automated meter infrastructure (AMI) endpoints communicating via RF mesh or PLC backhaul. IC Role / Device Role / Timing Role: Secure data acquisition node with AES-128 encrypted payload generation and eUSCI-driven modem interface. Use Value: Supports DLMS/COSEM protocol stack execution while maintaining cryptographic integrity of meter reads and firmware updates. |
Use Scenario: Deployed in unattended outdoor grid monitoring units detecting physical tampering or magnetic interference. IC Role / Device Role / Timing Role: Tamper-aware metrology controller using RTC tamper flags, GPIO-based switch detection, and secure event logging. Use Value: Logs and reports tamper events with precise timestamps and cryptographic signatures, satisfying utility anti-tamper compliance mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6748AIPZR | Same 256KB flash/32KB RAM, but adds 1 extra SD24_B channel (5 total) and 16KB more SRAM (48KB) | Supports 4-phase or dual-meter configurations requiring additional current/voltage channels | Select when needing extended metrology channel count or larger real-time waveform buffers |
| MSP430F6767AIPZR | Same 128-pin LQFP package and 256KB flash, but includes 6 SD24_B channels (vs. 4) and higher-resolution LCD support (up to 360 segments) | Targeted at advanced meters with multi-tariff billing, extended diagnostics, or enhanced display capability | Choose for future-proofing with broader analog input scalability and richer HMI support |
Compared with MSP430F6747AIPZR, the MSP430F6748AIPZR offers expanded channel count for complex topologies, while the MSP430F6767AIPZR provides greater metrology flexibility and display resolution - both retain identical pinout and software compatibility within the F67xxA family.
Availability
MSP430F6747AIPZR is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, AMI endpoint nodes, and tamper-resistant grid sensors requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F6747AIPZR 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 MSP430F6747AIPZR belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for high-accuracy, low-power energy measurement in utility-grade smart meters and grid-edge monitoring devices.
FAQ
What is the maximum dynamic range accuracy specification for MSP430F6747AIPZR in polyphase metering applications?
The MSP430F6747AIPZR achieves <0.1% accuracy over a 2000:1 dynamic range for phase current measurement, validated per ANSI C12.20 and IEC 62053-22 standards. This performance is enabled by its four independent 24-bit sigma-delta ADCs with digital phase correction and temperature compensation - all implemented in the MSP430F6747AIPZR silicon without external calibration circuitry.
Does MSP430F6747AIPZR support hardware-accelerated cryptography for secure firmware updates?
Yes, the MSP430F6747AIPZR integrates a dedicated hardware AES-128 encryption module that offloads cryptographic operations from the CPU. This allows secure boot, authenticated firmware updates, and encrypted DLMS/COSEM communications - critical for revenue-grade meters where MSP430F6747AIPZR serves as the trusted security anchor.
How many independent sigma-delta ADC channels does MSP430F6747AIPZR provide, and what are their primary metrology roles?
The MSP430F6747AIPZR provides four independent 24-bit SD24_B sigma-delta ADC channels. SD0–SD2 are typically assigned to phase A, B, and C current sensing; SD3 serves neutral current or phase voltage measurement - enabling full 3-phase 4-wire energy calculation with 4-quadrant support in the MSP430F6747AIPZR firmware stack.
What low-power modes are supported by MSP430F6747AIPZR, and what is the typical current draw in RTC-only operation?
The MSP430F6747AIPZR supports LPM3 (standby: 2.1 µA), LPM3.5 (RTC active: 0.34 µA), and LPM4.5 (shutdown: 0.18 µA), all measured at 3 V. In RTC-only mode (LPM3.5), the MSP430F6747AIPZR maintains calendar time, tamper detection, and wake-on-interrupt capability while consuming less than 0.35 µA - ideal for battery-backed meter retention during AC mains failure.
Is MSP430F6747AIPZR pin-compatible with other devices in the MSP430F67xxA family, and which packages share the same footprint?
Yes, the MSP430F6747AIPZR uses the 128-pin LQFP (PEU) package, which is mechanically and electrically pin-compatible with all other F67xxA variants in the PEU format - including MSP430F6767AIPZR and MSP430F6779AIPZR. This allows hardware reuse across meter tiers while scaling flash, RAM, and ADC count in the MSP430F6747AIPZR design.
MSP430F6747AIPZR 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, 4x24b 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:
MSP430F6747AIPZR FAQ
1.How can I place an order for MSP430F6747AIPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6747AIPZR 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 MSP430F6747AIPZR reliable?
The price and inventory of MSP430F6747AIPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6747AIPZR is usually 5 days.
3.What payment methods are accepted for MSP430F6747AIPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6747AIPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6747AIPZR?
MSP430F6747AIPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6747AIPZR 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 MSP430F6747AIPZR?
For technical support, including MSP430F6747AIPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6747AIPZR requirements.
6.How does Aetrix verify that MSP430F6747AIPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F6747AIPZR 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 MSP430F6747AIPZR meets industry standards.
7.What is the process for return or replacement of MSP430F6747AIPZR?
All MSP430F6747AIPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6747AIPZR, 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 MSP430F6747AIPZR part is unused and in its original packaging.
Return procedure for MSP430F6747AIPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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