My Inquiry
My Account
Texas Instruments MSP430F6749IPZ
- Part No.:
- MSP430F6749IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6749IPZ.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,084
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430F6749IPZ from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring four 24-bit sigma-delta ADCs, 512KB flash, 32KB RAM, and support for ANSI C12.20/IEC 62053 compliance in utility revenue metering applications.
For engineers reviewing the MSP430F6749IPZ datasheet, MSP430F6749IPZ pinout, MSP430F6749IPZ application, or MSP430F6749IPZ equivalent, key selection considerations include its 100-pin LQFP (PZ) package, 4-channel SD24_B ADC configuration, ultra-low-power LPM3.5 mode (0.34 µA), LCD driver for up to 320 segments, and integrated AES-128 encryption for anti-tamper security in smart meter deployments.
Technical Context
The MSP430F6749IPZ implements a 25-MHz CPU with 32-bit hardware multiplier for real-time energy calculations, paired with dedicated sigma-delta modulators optimized for current transformer, Rogowski coil, or shunt-based sensing across three phases plus neutral. Its SD24_B subsystem supports differential inputs, variable gain, and <0.1% accuracy over 2000:1 dynamic range.
It integrates dual power domains (AVCC/DVCC), auxiliary supplies (AUXVCC1–3) for backup subsystem operation during AC mains failure, and a temperature-compensated RTC with crystal offset calibration - all coordinated via a unified low-power management architecture supporting LPM3 (2.1 µA), LPM3.5 (0.34 µA), and LPM4.5 (0.18 µA) modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core CPU | 25-MHz MSP430 with 32-bit hardware multiplier for real-time energy computation |
| ADC Resolution | Four independent 24-bit sigma-delta ADCs (SD24_B) with differential inputs and programmable gain |
| Flash / RAM | 512KB single-cycle flash and 32KB single-cycle RAM for firmware and measurement buffers |
| Power Modes | LPM3.5 draws 0.34 µA at 3 V; enables RTC + backup RAM retention during AC loss |
| Accuracy | <0.1% error over 2000:1 dynamic range per phase current, meeting ANSI C12.20 and IEC 62053 |
| Package | 100-pin LQFP (PZ), 14 mm × 14 mm, with 62 GPIOs and dedicated pulse output pins for kWh/kVARh calibration |
| Communication | Six eUSCI ports configurable as UART, SPI, or I²C - supports AMR/AMI module interfacing |
Pinout & Package
Package: 100-pin LQFP (PZ), 14 mm × 14 mm, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN / XOUT | Low-frequency crystal oscillator interface | Supports 32.768-kHz crystal for RTC; internal oscillator compensation enabled |
| AUXVCC3 | Backup subsystem supply | Powers RTC and backup RAM during main AC failure; operates down to 1.8 V |
| RTCCAP0 / RTCCAP1 | RTC crystal load capacitors | External capacitor connections for precision RTC timing stability and temperature compensation |
| SD0P0 / SD0N0 – SD3P0 / SD3N0 | Dedicated sigma-delta analog inputs | Four fully differential SD24_B channel pairs for phase A/B/C and neutral current/voltage sensing |
| COM0–COM7 | LCD segment commons | Drive up to 320-segment LCD display with contrast control; supports multiplex ratios up to 1:8 |
| P1.0 / P1.1 | Analog inputs (VeREF− / VeREF+) | Provide external reference voltage inputs for SD24_B ADCs; enable ratiometric measurement |
Key Features
| Feature | Design Value |
|---|---|
| Digital phase correction | Compensates CT-induced phase shift in real time, enabling accurate reactive energy (kVARh) calculation |
| Temperature-compensated energy measurement | On-chip temperature sensor feeds correction algorithms to maintain <0.1% accuracy across –40°C to +85°C |
| Password-protected RTC | Prevents unauthorized clock manipulation; includes crystal offset calibration for long-term timing stability |
| Hardware AES-128 encryption | Accelerates secure firmware updates and data transmission without CPU overhead or software vulnerability exposure |
| Flexible power supply switching | Automatic transition between main AVCC and AUXVCC3 backup rails ensures uninterrupted metering during AC outage |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Installed in residential/commercial 3-phase 4-wire star-connected utility meters for billing-grade kWh/kVARh accumulation. IC Role / Device Role / Timing Role: Primary metrology SoC performing simultaneous voltage/current sampling, harmonic analysis, tariff management, and secure data logging. Use Value: Meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S requirements with single calibration across 40–70 Hz line frequency. | Use Scenario: Embedded in industrial submetering gateways monitoring motor-driven loads, HVAC systems, and renewable generation points. IC Role / Device Role / Timing Role: High-precision energy accumulator with four SD24_B channels supporting phase-resolved active/reactive/quadrant energy and exact phase angle reporting. Use Value: Delivers four-quadrant measurement per phase with digital phase correction, enabling accurate net import/export tracking for distributed energy resources. |
| Anti-Tamper Smart Meter | Low-Power Grid Edge Sensor |
Use Scenario: Deployed in tamper-prone outdoor meter installations requiring cryptographic protection against clock manipulation, firmware overwrite, and sensor bypass. IC Role / Device Role / Timing Role: Security-enabling SoC with password-locked RTC, AES-128 engine, and tamper-detect input (PJ.0–PJ.3) triggering secure erase on intrusion. Use Value: Integrated hardware security modules eliminate need for external secure elements while maintaining full compliance with IEC 62053-31 Annex B anti-tamper requirements. | Use Scenario: Battery-backed grid edge node collecting voltage sag/swell, harmonics, and power quality metrics in remote distribution substations. IC Role / Device Role / Timing Role: Ultra-low-power metrology controller operating in LPM3.5 (0.34 µA) with RTC wake-up for scheduled measurements and event-triggered capture. Use Value: Enables >5-year battery life using coin-cell backup while retaining critical time-stamped waveform snapshots during disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6769IPZ | 6 SD24_B ADCs (vs. 4), same 512KB/32KB memory, identical 100-pin PZ package and pinout | Supports additional sensor inputs for extended diagnostics or 4-wire delta configurations | Select when needing ≥6 differential metrology channels without changing PCB layout |
| MSP430F6748IPZ | Same 4 SD24_B ADCs but reduced RAM (16KB vs. 32KB); otherwise identical feature set and package | Suitable for cost-optimized meters with smaller firmware footprint and fewer concurrent data buffers | Select when memory headroom is sufficient with 16KB RAM and BOM cost reduction is prioritized |
Compared with MSP430F6769IPZ, the MSP430F6749IPZ trades two SD24_B channels for identical power/performance in compact meter designs; compared with MSP430F6748IPZ, it doubles RAM for larger firmware or extended waveform capture buffers - both alternatives retain full pin compatibility and LPM3.5 operation.
Availability
MSP430F6749IPZ is available at Aetrix Electronics and suitable for 3-phase smart metering, utility revenue meter development, and industrial energy monitoring applications requiring stable component supply, long lifecycle support, and TI-qualified metrology performance.
Supply support for MSP430F6749IPZ 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 specializing in analog and embedded processing technologies, with leadership in low-power microcontrollers and precision metrology solutions.
The MSP430F674x product line is engineered specifically for revenue-grade polyphase electricity meters, integrating metrology ADCs, secure processing, and ultra-low-power operation to minimize system cost and external component count.
FAQ
What is the maximum dynamic range accuracy of the MSP430F6749IPZ for phase current measurement?
The MSP430F6749IPZ achieves <0.1% measurement accuracy over a 2000:1 dynamic range for phase current, verified under ANSI C12.20 and IEC 62053-22 test conditions. This performance is enabled by its four 24-bit sigma-delta ADCs (SD24_B) with programmable gain and digital phase correction - all implemented within the MSP430F6749IPZ silicon without external calibration components.
Does the MSP430F6749IPZ support hardware encryption for secure firmware updates?
Yes, the MSP430F6749IPZ includes a dedicated hardware AES-128 encryption module that accelerates cryptographic operations without CPU intervention. This enables secure boot, authenticated firmware updates, and encrypted communication - all supported natively within the MSP430F6749IPZ, reducing attack surface versus software-only implementations.
What low-power modes are available on the MSP430F6749IPZ, and what is the lowest current draw?
The MSP430F6749IPZ supports LPM3 (2.1 µA), LPM3.5 (0.34 µA), and LPM4.5 (0.18 µA) at 3 V. LPM3.5 retains RTC operation and backup RAM while disabling the main core and analog subsystems - making it ideal for maintaining timekeeping and critical data during AC mains failure in smart meter applications using the MSP430F6749IPZ.
How many sigma-delta ADC channels does the MSP430F6749IPZ integrate, and what is their resolution?
The MSP430F6749IPZ integrates four independent 24-bit sigma-delta ADCs (SD24_B) with differential inputs, programmable gain, and built-in digital filters. These channels are mapped to dedicated analog input pins (SD0P0/SD0N0 through SD3P0/SD3N0) and are optimized for high-accuracy current and voltage sensing in 3-phase metering topologies using the MSP430F6749IPZ.
Is the MSP430F6749IPZ pin-compatible with other devices in the MSP430F67xx family?
Yes, the MSP430F6749IPZ shares identical pinout and package (100-pin LQFP, PZ) with all other IPZ-suffixed variants in the MSP430F674x, MSP430F676x, and MSP430F677x families. This allows direct substitution within the same PCB layout - for example, upgrading to MSP430F6769IPZ adds two more SD24_B channels without redesign, preserving full compatibility with the MSP430F6749IPZ footprint and signal routing.
MSP430F6749IPZ 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:
- 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:
MSP430F6749IPZ FAQ
1.How can I place an order for MSP430F6749IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6749IPZ 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 MSP430F6749IPZ reliable?
The price and inventory of MSP430F6749IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6749IPZ is usually 5 days.
3.What payment methods are accepted for MSP430F6749IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6749IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6749IPZ?
MSP430F6749IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6749IPZ 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 MSP430F6749IPZ?
For technical support, including MSP430F6749IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6749IPZ requirements.
6.How does Aetrix verify that MSP430F6749IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F6749IPZ 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 MSP430F6749IPZ meets industry standards.
7.What is the process for return or replacement of MSP430F6749IPZ?
All MSP430F6749IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6749IPZ, 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 MSP430F6749IPZ part is unused and in its original packaging.
Return procedure for MSP430F6749IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430F6749IPZ 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…
