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Texas Instruments MSP430F67651AIPZ
- Part No.:
- MSP430F67651AIPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F67651AIPZ.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,114
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Product details
Overview
MSP430F67651AIPZ 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, 128KB flash, 16KB RAM, LCD controller (320 segments), and dual eUSCI modules (4 UART/IrDA/SPI + 2 SPI/I²C). It meets ANSI C12.20 and IEC 62053 standards and supports shunt/CT/Rogowski sensor inputs.
For engineers reviewing the MSP430F67651AIPZ datasheet, MSP430F67651AIPZ pinout, MSP430F67651AIPZ application, or MSP430F67651AIPZ equivalent, key selection criteria include metrology accuracy (<0.1% over 2000:1 dynamic range), RTC tamper detection with temperature compensation, ultra-low-power LPM3.5 mode (0.34 µA), and 100-pin LQFP package with 62 GPIOs and dedicated pulse output pins for active/reactive energy calibration.
Technical Context
The MSP430F67651AIPZ implements a dedicated metrology subsystem with six independent SD24_B sigma-delta modulators feeding digital filters and energy calculation engines. Its analog front end supports differential current/voltage sensing across three phases plus neutral, with digital phase correction and 4-quadrant power computation per phase.
Digital resources include three-channel DMA, 16-bit CRC, four 16-bit timers (9 capture/compare registers), and six eUSCI interfaces-four supporting UART/IrDA/SPI (eUSCI_A0–A3) and two supporting SPI/I²C (eUSCI_B0–B1)-enabling simultaneous HAN, PLC, and optical port communication in smart meter designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 128 KB single-cycle flash enabling full metrology firmware, calibration tables, and secure bootloader storage. |
| RAM | 16 KB single-cycle RAM for real-time energy accumulation buffers, RTC backup, and interrupt context preservation. |
| Sigma-Delta ADCs | 6 × 24-bit SD24_B converters with differential inputs and programmable gain-supports simultaneous voltage/current sampling per phase. |
| ADC Accuracy | <0.1% error over 2000:1 dynamic range at 50/60 Hz-meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.2 requirements. |
| Low-Power Modes | LPM3.5 (RTC active): 0.34 µA at 3 V; LPM4.5 (shutdown): 0.18 µA-enables >10-year battery life during mains failure. |
| LCD Driver | Supports up to 320 segments with contrast control-drives large-format utility meter displays without external bias circuitry. |
| Package | 100-pin LQFP (PZ), 14 mm × 14 mm body, 62 GPIOs-compatible with standard meter PCB layouts and automated assembly. |
Pinout & Package
Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, 0.5 mm pitch, exposed thermal pad not present. Designed for industrial metering environments with extended temperature operation (–40°C to 85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN / XOUT | 32.768 kHz crystal oscillator terminals | Drive low-frequency RTC clock with crystal offset calibration and temperature compensation for ±2 ppm accuracy. |
| VREF | Reference voltage input | Accepts external 1.2 V reference for SD24_B ADCs-enables stable metrology performance across supply and temperature variation. |
| SD0P0 / SD0N0 – SD5P0 / SD5N0 | Differential sigma-delta ADC inputs | 6 dedicated differential pairs for phase A/B/C voltage and current sensing-supports shunt, CT, or Rogowski coil interfaces. |
| COM0–COM7 | LCD segment/common outputs | Drive up to 320-segment LCD directly-eliminates need for external LCD driver IC and reduces BOM count. |
| eUSCI_A0–A3, eUSCI_B0–B1 | Universal serial communication interfaces | Enable concurrent optical port (UART), RF/PLC modem (SPI/I²C), and HAN interface-no external protocol bridge required. |
Key Features
| Feature | Design Value |
|---|---|
| Password-protected RTC with tamper detection | Prevents unauthorized clock manipulation; triggers secure erase on case breach or voltage glitch-required for revenue-grade meter certification. |
| Dedicated pulse output pins | Hardware-generated active/reactive energy pulses (CF1/CF2) enable direct connection to LED calibration indicators-no CPU overhead or timing jitter. |
| 4-quadrant power measurement | Computes real, reactive, apparent, and fundamental power in all quadrants-supports bidirectional energy flow in solar-export and EV charging applications. |
| Temperature-compensated energy measurement | On-chip temperature sensor and algorithmic correction maintain <0.1% accuracy across –40°C to 85°C-avoids external thermistor and calibration labor. |
| Flexible power supply with auto-switching | Operates from 3.6 V down to 1.8 V; automatically selects between AC-derived supply and backup battery-ensures continuous metrology during brownouts. |
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 switching, and secure data logging. Use Value: Delivers ANSI/IEC Class 0.2 accuracy without external precision references or calibration hardware-reduces time-to-certification by 6+ weeks. |
Use Scenario: Embedded in industrial submetering panels for load profiling and demand response analytics. IC Role / Device Role / Timing Role: High-resolution energy accumulator with timestamped 15-min interval registers and tamper-secure RTC. Use Value: Enables ±0.1% billing-grade measurement across 2000:1 current range-supports utility-grade submetering without recalibration. |
| Grid Edge Sensor Node | EV Charging Station Monitor |
Use Scenario: Deployed in transformer monitoring units for voltage sag/swell detection and power quality event logging. IC Role / Device Role / Timing Role: Real-time waveform capture engine using SD24_B oversampling and DMA-triggered FFT processing. Use Value: Captures 128 samples/cycle at 50/60 Hz with <100 ns timestamp resolution-meets IEEE 1159 PQ event classification requirements. |
Use Scenario: Integrated into AC Level 2 EVSE to measure imported/exported energy for billing and grid services. IC Role / Device Role / Timing Role: Bidirectional energy metering core with 4-quadrant computation and secure cryptographic signing of energy logs. Use Value: Supports ISO 15118-compliant V2G energy accounting with hardware-accelerated SHA-256 and tamper-proof RTC timestamps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F67661AIPZ | 256 KB flash, 16 KB RAM, same 6-ADC configuration and package | Supports larger firmware (e.g., DLMS/COSEM stack + OTA updates) without external memory | Select when field-upgradable secure communication protocols require >128 KB code space. |
| MSP430F67451AIPZ | 4 × 24-bit SD24_B ADCs, 128 KB flash, 16 KB RAM, identical package | Reduced channel count suits single-phase or 2-wire delta metering; lower cost for non-revenue applications | Select for cost-sensitive submetering or non-billing energy monitoring where 3-phase + neutral is not required. |
Compared with MSP430F67651AIPZ, the MSP430F67661AIPZ provides headroom for future firmware expansion while maintaining identical metrology performance and pinout, whereas the MSP430F67451AIPZ trades two ADC channels for lower unit cost-making it suitable for simplified meter architectures without sacrificing LQFP-100 compatibility.
Availability
MSP430F67651AIPZ is available at Aetrix Electronics and suitable for smart electricity meters, revenue-grade energy monitors, and grid-edge sensor nodes requiring stable component supply across multi-year utility deployments.
Supply support for MSP430F67651AIPZ 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 delivering analog and embedded processing solutions, with leadership in low-power microcontrollers and precision metrology ICs.
The MSP430F67651AIPZ belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for ANSI/IEC-compliant energy measurement in utility-grade smart meters and industrial power monitoring systems.
FAQ
What metrology standards does the MSP430F67651AIPZ meet?
The MSP430F67651AIPZ meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.2 accuracy requirements for active energy measurement. Its six 24-bit sigma-delta ADCs, digital phase correction, and temperature-compensated computation engine ensure <0.1% error over 2000:1 dynamic range at 40–70 Hz line frequencies-validated per standard test procedures in the device datasheet.
Does the MSP430F67651AIPZ support tamper detection and secure logging?
Yes, the MSP430F67651AIPZ includes password-protected RTC with dedicated tamper detect pins (TAMPERx), voltage glitch detection, and secure erase functionality. When triggered, it clears sensitive registers and logs tamper events with RTC timestamps-enabling compliance with ANSI C12.22 and IEC 62056-21 security mandates for revenue meters.
How many communication interfaces does the MSP430F67651AIPZ integrate?
The MSP430F67651AIPZ integrates six enhanced universal serial communication interfaces: four eUSCI_A modules supporting UART, IrDA, and SPI; and two eUSCI_B modules supporting SPI and I²C. This enables concurrent optical port (UART), PLC modem (SPI), and HAN interface (I²C) without external bus expanders or protocol translation ICs.
What is the lowest power consumption mode of the MSP430F67651AIPZ?
The MSP430F67651AIPZ achieves 0.18 µA in LPM4.5 (shutdown mode) and 0.34 µA in LPM3.5 (RTC-active mode) at 3 V. In LPM3.5, the RTC continues timekeeping with crystal oscillator and temperature compensation enabled-allowing >10 years of battery-backed operation during AC mains failure while retaining metrology state.
Is the MSP430F67651AIPZ pin-compatible with other devices in the F676x1A family?
Yes, the MSP430F67651AIPZ shares identical 100-pin LQFP (PZ) package, pinout, and peripheral mapping with all F676x1A variants (e.g., MSP430F67661AIPZ, MSP430F67671AIPZ). Firmware and PCB layout are interchangeable across the family-only flash/RAM size and SD24_B channel count differ, enabling scalable design reuse.
MSP430F67651AIPZ 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, 6x24b Sigma Delta Converter
- Number of I/O:
- 62
- Program Memory Size:
- 128KB (128K 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:
MSP430F67651AIPZ FAQ
1.How can I place an order for MSP430F67651AIPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F67651AIPZ 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 MSP430F67651AIPZ reliable?
The price and inventory of MSP430F67651AIPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F67651AIPZ is usually 5 days.
3.What payment methods are accepted for MSP430F67651AIPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F67651AIPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F67651AIPZ?
MSP430F67651AIPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F67651AIPZ 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 MSP430F67651AIPZ?
For technical support, including MSP430F67651AIPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F67651AIPZ requirements.
6.How does Aetrix verify that MSP430F67651AIPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F67651AIPZ 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 MSP430F67651AIPZ meets industry standards.
7.What is the process for return or replacement of MSP430F67651AIPZ?
All MSP430F67651AIPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F67651AIPZ, 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 MSP430F67651AIPZ part is unused and in its original packaging.
Return procedure for MSP430F67651AIPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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