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Texas Instruments MSP430F6748IPZ
- Part No.:
- MSP430F6748IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6748IPZ.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,032
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Product details
Overview
MSP430F6748IPZ from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring a 25-MHz ultra-low-power CPU, 512KB flash, 16KB RAM, four 24-bit sigma-delta ADCs, and support for ANSI C12.20/IEC 62053 compliance in utility metering applications.
For engineers reviewing the MSP430F6748IPZ datasheet, MSP430F6748IPZ pinout, MSP430F6748IPZ application, or MSP430F6748IPZ equivalent, key selection criteria include its 100-pin LQFP (PZ) package, 62 I/O count, 4-channel SD24_B ADC configuration, RTC with temperature compensation, and integrated AES-128 encryption for secure smart meter deployments.
Technical Context
The MSP430F6748IPZ implements a dedicated metering architecture with four independent 24-bit sigma-delta modulators feeding into digital filters, enabling simultaneous phase current/voltage measurement across three phases plus neutral. Its hardware-accelerated energy calculation engine executes TI's certified energy measurement software library without CPU intervention.
It integrates dual power domains (AVCC/DVCC), auxiliary supplies (AUXVCC1–3), and a backup subsystem supporting <0.34 µA RTC mode operation. The device supports flexible sensor inputs (shunts, CTs, Rogowski coils), digital phase correction, and 40–70 Hz line frequency tolerance using single-point calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Speed | 25 MHz - Enables real-time tariff management and AMI communication stack execution within active metering cycles. |
| Flash / RAM | 512 KB / 16 KB - Sufficient for full ANSI/IEC-compliant firmware, calibration tables, and secure boot + OTA update storage. |
| Sigma-Delta ADCs | 4 × 24-bit - Supports simultaneous measurement of up to 3-phase voltage/current + neutral current with >0.1% accuracy over 2000:1 dynamic range. |
| Low-Power Modes | LPM3.5: 0.34 µA - Maintains RTC and critical registers during AC mains failure while retaining tamper detection readiness. |
| Package / I/O | 100-pin LQFP (PZ), 62 GPIO - Matches compact meter PCB layouts requiring high analog/digital signal routing density and LCD segment drive capability. |
| Communication Peripherals | 4 UART, 6 SPI, 2 I²C - Configurable eUSCI modules enable concurrent PLC, RF, and optical port interfaces in multi-protocol smart meters. |
| Security | Hardware AES-128 + password-protected RTC - Provides cryptographic payload encryption and time-stamped anti-tamper event logging per IEC 62056-21 and DLMS/COSEM requirements. |
Pinout & Package
Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN / XOUT | 32.768 kHz crystal oscillator input/output | Provides low-jitter clock source for temperature-compensated RTC and precise time-of-use tariff calculations. |
| AUXVCC3 | Backup subsystem supply | Enables <0.34 µA RTC operation during main power loss; powers RTC, BSL, and tamper detect circuitry independently. |
| SD0P0 / SD0N0 – SD3P0 / SD3N0 | Differential sigma-delta ADC inputs | Four dedicated 24-bit SD24_B channels for direct connection to shunt/CT sensors; support programmable gain and digital phase correction. |
| COM0–COM7 | LCD segment commons | Drives up to 320-segment LCD display with contrast control; enables local meter readout without external controller. |
| P1.0 / P1.1 | VeREF− / VeREF+ | External reference inputs for ADC10_A system ADC; allow precision temperature/supply monitoring with internal 1.5 V reference option. |
Key Features
| Feature | Design Value |
|---|---|
| ANSI C12.20 & IEC 62053 compliance | Fully certified metering accuracy path - eliminates need for external calibration ICs or post-processing compensation in revenue-grade meters. |
| Dedicated pulse output pins | Hardware-generated active/reactive energy pulses - enables direct connection to mechanical test meters or LED indicators without CPU overhead or timing jitter. |
| Four-quadrant energy measurement | Per-phase and cumulative bidirectional power calculation - supports net metering, reverse flow detection, and demand response billing models. |
| Integrated LCD driver | 320-segment support with software-adjustable contrast - reduces BOM cost and board space vs. external display controllers in form-factor-constrained meters. |
| Password-protected RTC | Crystal offset calibration + temperature compensation - maintains ±2 ppm accuracy across –40°C to +85°C, meeting IEC 62053-62 long-term timekeeping requirements. |
Applications
| Smart Grid Revenue Meter | Industrial Energy Monitor |
|---|---|
Use Scenario: Installed as primary billing meter in 3-phase 4-wire utility distribution panels with CT-based current sensing and optical/PLC communication. IC Role / Device Role / Timing Role: System-on-chip metering controller performing real-time energy accumulation, tariff switching, secure data logging, and RTC-synchronized event stamping. Use Value: Eliminates external ADCs, RTC, crypto engine, and display controller - reducing bill-of-materials by ≥7 components and PCB area by >35%. | Use Scenario: Embedded in factory-floor submetering units tracking motor-driven load profiles across multiple production lines. IC Role / Device Role / Timing Role: High-accuracy energy analyzer capturing harmonic content, reactive power, and demand peaks at 1-second intervals with timestamped storage. Use Value: Four independent SD24_B channels enable simultaneous voltage/current capture on all three phases - delivering true RMS and power factor without multiplexing delay. |
| AMI Endpoint Node | Tamper-Resistant Prepayment Meter |
Use Scenario: Integrated into cellular/NB-IoT-enabled smart meter nodes transmitting consumption data hourly to utility head-end systems. IC Role / Device Role / Timing Role: Secure communications host managing encrypted DLMS/COSEM message framing, AES-128 payload encryption, and scheduled wake-up for low-duty-cycle radio transmission. Use Value: Hardware AES engine processes 128-bit blocks in <10 µs - enabling full-frame encryption without degrading 100-ms metering cycle timing. | Use Scenario: Deployed in prepaid electricity meters requiring physical tamper detection (cover removal, magnetic field, voltage glitch) and secure credit validation. IC Role / Device Role / Timing Role: Tamper-aware security controller monitoring RTC tamper pins, auxiliary supply monitors, and internal voltage supervisors with non-volatile event logging. Use Value: Password-protected RTC and hardware-backed AES prevent credential cloning; tamper events trigger immediate memory wipe and irreversible fuse blow via BSL interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6747IPZ | 256 KB flash, 32 KB RAM, same 4-channel SD24_B ADC and peripherals | Lower flash capacity limits complex tariff logic or multi-protocol stacks; retains full metrology accuracy | Select when firmware footprint is <256 KB and higher RAM is needed for extended data buffering. |
| MSP430F6768IPZ | 512 KB flash, 16 KB RAM, 6-channel SD24_B ADC, identical package and pinout | Two additional sigma-delta channels support neutral current + auxiliary sensor (e.g., temperature, humidity) | Choose when expanded analog sensing beyond 3-phase + neutral is required without changing PCB layout. |
Compared with MSP430F6747IPZ, the MSP430F6748IPZ provides double flash capacity for advanced firmware features; compared with MSP430F6768IPZ, it trades two SD24_B channels for identical flash/RAM but lower cost and power in standard 3-phase meter designs.
Availability
MSP430F6748IPZ is available at Aetrix Electronics and suitable for utility metering, industrial energy monitoring, and smart grid endpoint applications requiring stable component supply, long lifecycle support, and traceable sourcing for global certification programs.
Supply support for MSP430F6748IPZ 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 for industrial, automotive, and energy infrastructure markets.
The MSP430F6748IPZ belongs to TI's polyphase metering SoC product line, engineered specifically for revenue-grade electricity meters that must meet ANSI C12.20 and IEC 62053 standards with minimal external components and ultra-low standby power.
FAQ
What is the maximum number of simultaneous analog inputs supported by the MSP430F6748IPZ?
The MSP430F6748IPZ supports four independent 24-bit sigma-delta ADC channels (SD24_B), each accepting differential inputs. These are mapped to eight dedicated analog input pins (SD0P0/SD0N0 through SD3P0/SD3N0), enabling simultaneous sampling of up to four analog signals - such as three-phase currents and neutral current - without multiplexing delay. The MSP430F6748IPZ does not support additional analog inputs beyond these four SD24_B channels.
Does the MSP430F6748IPZ include hardware acceleration for energy calculations?
Yes, the MSP430F6748IPZ integrates a dedicated hardware energy calculation engine that operates independently of the CPU. It processes raw sigma-delta modulator outputs from the four SD24_B ADCs to compute active, reactive, and apparent energy in real time using TI's certified energy measurement software library. This offloads computation from the 25-MHz CPU, ensuring deterministic metering cycles and consistent accuracy even under heavy communication or display update loads. The MSP430F6748IPZ delivers this capability without external co-processors.
What is the lowest power consumption mode available on the MSP430F6748IPZ during AC mains failure?
The MSP430F6748IPZ achieves 0.34 µA in RTC mode (LPM3.5) when powered solely by AUXVCC3, maintaining real-time clock operation, tamper detection readiness, and critical register retention during AC mains failure. This mode preserves time-of-use tariff integrity and enables rapid wake-up (<5 µs) upon power restoration. The MSP430F6748IPZ sustains this ultra-low current draw across the full industrial temperature range (–40°C to +85°C) with integrated temperature compensation.
Can the MSP430F6748IPZ drive a 320-segment LCD directly without external components?
Yes, the MSP430F6748IPZ includes an integrated LCD_C peripheral capable of driving up to 320 segments using its COM0–COM7 and SEGx pins. It supports static, 2-, 3-, and 4-mux configurations with programmable contrast control and charge pump regulation. No external LCD bias generator or driver IC is required, reducing BOM cost and board space. The MSP430F6748IPZ manages all timing, voltage generation, and multiplexing internally - verified per TI's SLAS768E specification.
Is the MSP430F6748IPZ pin-compatible with other devices in the MSP430F674x family?
Yes, the MSP430F6748IPZ shares identical pinout, package (100-pin LQFP PZ), and electrical characteristics with all other members of the MSP430F674x IPZ series - including MSP430F6745IPZ, MSP430F6746IPZ, MSP430F6747IPZ, and MSP430F6749IPZ. This allows drop-in replacement across variants differing only in flash/RAM size and SD24_B channel count, simplifying design reuse and inventory management. The MSP430F6748IPZ maintains full functional compatibility at the board level within this group.
MSP430F6748IPZ 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, 4x24b Sigma Delta Converter
- Number of I/O:
- 62
- Program Memory Size:
- 512KB (512K 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:
MSP430F6748IPZ FAQ
1.How can I place an order for MSP430F6748IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6748IPZ 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 MSP430F6748IPZ reliable?
The price and inventory of MSP430F6748IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6748IPZ is usually 5 days.
3.What payment methods are accepted for MSP430F6748IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6748IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6748IPZ?
MSP430F6748IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6748IPZ 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 MSP430F6748IPZ?
For technical support, including MSP430F6748IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6748IPZ requirements.
6.How does Aetrix verify that MSP430F6748IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F6748IPZ 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 MSP430F6748IPZ meets industry standards.
7.What is the process for return or replacement of MSP430F6748IPZ?
All MSP430F6748IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6748IPZ, 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 MSP430F6748IPZ part is unused and in its original packaging.
Return procedure for MSP430F6748IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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