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Texas Instruments MSP430F6777IPZR
- Part No.:
- MSP430F6777IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6777IPZR.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,626
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Product details
Overview
MSP430F6777IPZR from Texas Instruments is a polyphase metering SoC designed for 3-phase electronic watt-hour meters, featuring seven 24-bit sigma-delta ADCs, 256KB flash, 32KB RAM, and LCD controller supporting up to 320 segments. It delivers <0.1% energy measurement accuracy over 2000:1 dynamic range and meets ANSI C12.20 and IEC 62053 standards for revenue-grade utility metering.
For engineers reviewing the MSP430F6777IPZR datasheet, MSP430F6777IPZR pinout, MSP430F6777IPZR application, or MSP430F6777IPZR equivalent, key selection considerations include its 100-pin LQFP (PZ) package with 62 I/Os, ultra-low-power operation (0.18 µA in LPM4.5), integrated AES-128 encryption, and support for current transformers, Rogowski coils, and shunt sensors in 3-phase + neutral configurations.
Technical Context
The MSP430F6777IPZR integrates a 25-MHz MSP430 CPU with 32-bit hardware multiplier to execute TI's energy measurement software library for real-time active/reactive power, energy, and four-quadrant calculations. Its analog front end includes dedicated SD24_B modulators per phase with digital phase correction and temperature-compensated energy computation.
It supports flexible power architecture with automatic switching between main and backup supplies, enabling <3 µA LCD operation during AC mains failure. Communication is handled via six eUSCI ports configurable as UART, SPI, or I²C - critical for AMR/AMI module interfacing in smart meter deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 256 KB single-cycle flash for firmware, calibration data, and tariff management logic |
| RAM | 32 KB single-cycle RAM for real-time energy calculation buffers and communication stacks |
| Sigma-Delta ADCs | Seven independent 24-bit SD24_B converters with differential inputs and programmable gain for simultaneous 3-phase + neutral current/voltage sensing |
| Accuracy | <0.1% error over 2000:1 dynamic range at 40–70 Hz line frequency using single-point calibration |
| Low-Power Modes | LPM3.5 (RTC mode): 0.34 µA; LPM4.5 (shutdown): 0.18 µA - enables >10-year battery-backed operation |
| Package | 100-pin LQFP (PZ), 14 mm × 14 mm, industrial temperature range (–40°C to +85°C) |
| Communication Interfaces | Six eUSCI modules configurable as four UARTs, six SPIs, or two I²C interfaces - supports dual-band PLC and RF mesh coexistence |
Pinout & Package
Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, exposed pad not specified, RoHS-compliant, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN / XOUT | Low-frequency crystal oscillator input/output | Supports 32.768 kHz watch crystal for RTC with temperature-compensated offset calibration |
| AUXVCC1–AUXVCC3 | Backup subsystem supply rails | Enable autonomous RTC, tamper detection, and LCD operation during main power loss |
| SD0P0–SD6N0 | Differential sigma-delta ADC inputs | Map to phase A/B/C and neutral current/voltage channels; support CT, Rogowski, or shunt sensor interfaces |
| COM0–COM7 | LCD segment/common drivers | Drive up to 320-segment LCD directly without external bias circuitry; support contrast control |
| eUSCI_A0–A3, B0–B1 | Configurable serial interfaces | UART/SPI/I²C pins routed to P3/P4 ports; enable concurrent HPLC, NB-IoT, and optical port communication |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated pulse output pins | Hardware-generated active/reactive energy pulses for metrology calibration and verification without CPU intervention |
| Password-protected RTC | Secure real-time clock with crystal offset calibration and temperature compensation prevents time drift and tampering |
| Integrated AES-128 module | Hardware-accelerated encryption offloads CPU, enabling secure firmware updates and encrypted meter data transmission |
| Four-quadrant measurement | Per-phase bidirectional energy tracking supports net metering, reverse power flow, and anti-tamper detection in distributed generation |
| Digital phase correction | Compensates CT phase lag in real time, eliminating external analog compensation networks and reducing BOM cost |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
|
Use Scenario: Installed in residential/commercial 3-phase 4-wire service entrances for billing-grade kWh/kVARh accumulation. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time energy computation, pulse generation, and secure data logging. Use Value: Meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S requirements with single-chip integration, eliminating external ADCs and DSPs. |
Use Scenario: Embedded in industrial submetering gateways monitoring HVAC, lighting, and production equipment energy consumption. IC Role / Device Role / Timing Role: High-accuracy energy aggregator with timestamped 15-minute interval data storage and RS-485/LoRaWAN interface control. Use Value: 256KB flash stores >1 year of 15-min interval data; ultra-low standby current extends battery life in wireless edge nodes. |
| Anti-Tamper Utility Meter | Multi-Sensor Grid Edge Node |
|
Use Scenario: Deployed in theft-prone urban distribution networks requiring physical and logical tamper detection. IC Role / Device Role / Timing Role: Security-enforced metrology controller with RTC tamper detect, voltage glitch monitoring, and AES-encrypted event logs. Use Value: Integrated tamper detection circuitry (RTC cap sense, supply monitor, GPIO-based case switches) reduces external component count by 7+ discrete parts. |
Use Scenario: Used in solar + storage microgrid controllers measuring generation, load, and grid import/export simultaneously. IC Role / Device Role / Timing Role: Multi-channel synchronized sampling engine capturing phase-aligned voltage/current across three phases and neutral. Use Value: Seven SD24_B ADCs enable true simultaneous sampling - critical for harmonic analysis and power quality metrics (THD, flicker, unbalance). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6779IPZ | 512KB flash, 32KB RAM, identical 100-pin LQFP package and peripheral set | Supports larger firmware (e.g., DLMS/COSEM stack + OTA updates) and extended data logging | Select when future-proofing firmware scalability or adding advanced communication protocols beyond basic AMR |
| MSP430F6767IPZ | 256KB flash, 32KB RAM, six SD24_B ADCs (vs. seven), same package and low-power specs | Lacks dedicated neutral current channel; suitable for 3-phase 3-wire only deployments | Choose for cost-sensitive 3-wire delta systems where neutral current measurement is not required |
Compared with MSP430F6779IPZ, the MSP430F6777IPZR trades flash capacity for identical metrology performance and security features in a lower-cost variant; versus MSP430F6767IPZ, it adds a seventh SD24_B channel enabling full 3-phase 4-wire neutral current monitoring essential for revenue meter compliance.
Availability
MSP430F6777IPZR is available at Aetrix Electronics and suitable for smart electricity meters, revenue-grade energy monitors, and anti-tamper utility metering systems requiring stable component supply, long-term lifecycle support, and traceable sourcing for global certification programs.
Supply support for MSP430F6777IPZR 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 MSP430F6777IPZR belongs to TI's polyphase metering SoC product line, engineered specifically for ANSI/IEC-compliant revenue meters with integrated metrology, security, and ultra-low-power operation - minimizing external components and system-level validation effort.
FAQ
What is the primary metrology accuracy specification of the MSP430F6777IPZR?
The MSP430F6777IPZR achieves <0.1% energy measurement accuracy over a 2000:1 dynamic range at line frequencies from 40 Hz to 70 Hz. This performance meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S standards for revenue-grade metering. The accuracy is enabled by TI's 24-bit sigma-delta modulator technology and on-chip digital phase correction for current transformers. MSP430F6777IPZR maintains this specification without external calibration components.
Does the MSP430F6777IPZR support 3-phase 4-wire metering including neutral current measurement?
Yes, the MSP430F6777IPZR supports full 3-phase 4-wire metering with dedicated neutral current measurement capability. It includes seven independent 24-bit SD24_B sigma-delta ADCs - six allocated for phase A/B/C voltage and current channels, and one reserved for neutral current sensing. This configuration satisfies ANSI C12.20 and IEC 62053 requirements for 4-wire star-connected systems. MSP430F6777IPZR provides differential inputs and programmable gain for direct connection to shunts, CTs, or Rogowski coils on the neutral path.
What low-power modes are available on the MSP430F6777IPZR and their typical current draw?
The MSP430F6777IPZR offers multiple ultra-low-power modes: LPM3 (standby) draws 2.1 µA at 3 V with RTC active and wake-up in <5 µs; LPM3.5 (RTC-only mode) consumes 0.34 µA; and LPM4.5 (shutdown) uses just 0.18 µA. These modes enable >10-year battery life in backup operation and support continuous LCD display (3 µA in LPM3) during AC mains failure. MSP430F6777IPZR's power architecture automatically switches between main and auxiliary supplies without firmware intervention.
How does the MSP430F6777IPZR handle secure firmware updates and data transmission?
The MSP430F6777IPZR integrates a hardware AES-128 encryption module that accelerates cryptographic operations without CPU overhead. It supports secure boot, encrypted firmware image verification, and authenticated data transmission for AMI/AMR networks. Password-protected RTC and tamper-detect pins further harden the device against physical and logical attacks. MSP430F6777IPZR implements these security functions in silicon - no external crypto IC or secure element is required for DLMS/COSEM or proprietary protocol compliance.
What package and pin count does the MSP430F6777IPZR use, and how many GPIOs are available?
The MSP430F6777IPZR is housed in a 100-pin LQFP (PZ) package measuring 14 mm × 14 mm, rated for industrial temperature range (–40°C to +85°C). It provides 62 general-purpose I/O pins, with additional dedicated function pins for crystal, power supplies, ADC inputs, LCD segments/commoms, and eUSCI interfaces. Pin mapping is fixed per TI's datasheet - no remapping of SD24_B or RTC pins is supported. MSP430F6777IPZR shares pin compatibility with other PZ-package variants in the F677x family.
MSP430F6777IPZR 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, 7x24b 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:
MSP430F6777IPZR FAQ
1.How can I place an order for MSP430F6777IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6777IPZR 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 MSP430F6777IPZR reliable?
The price and inventory of MSP430F6777IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6777IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F6777IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6777IPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6777IPZR?
MSP430F6777IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6777IPZR 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 MSP430F6777IPZR?
For technical support, including MSP430F6777IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6777IPZR requirements.
6.How does Aetrix verify that MSP430F6777IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F6777IPZR 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 MSP430F6777IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F6777IPZR?
All MSP430F6777IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6777IPZR, 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 MSP430F6777IPZR part is unused and in its original packaging.
Return procedure for MSP430F6777IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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