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Texas Instruments MSP430F6777AIPZ
- Part No.:
- MSP430F6777AIPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6777AIPZ.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,180
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Product details
Overview
MSP430F6777AIPZ from Texas Instruments is a polyphase metering SoC designed for high-accuracy energy measurement in 3-phase utility meters. It integrates seven 24-bit sigma-delta ADCs (±0.1% accuracy over 2000:1 dynamic range), a 25-MHz CPU with 32-bit multiplier, 256KB flash, 32KB RAM, LCD controller (320 segments), and hardware AES-128 encryption - all in a 100-pin LQFP package supporting ANSI C12.20 and IEC 62053 compliance.
For engineers reviewing the MSP430F6777AIPZ datasheet, MSP430F6777AIPZ pinout, MSP430F6777AIPZ application, or MSP430F6777AIPZ equivalent, key selection criteria include metrology-grade ADC performance, RTC tamper detection, multi-interface communication (4× eUSCI_A, 2× eUSCI_B), ultra-low-power LPM3.5 mode (0.34 µA), and integrated security modules for anti-tamper metering systems.
Technical Context
The MSP430F6777AIPZ implements a dedicated metrology subsystem with independent SD24_B modulators per phase, enabling simultaneous 3-phase + neutral power calculation. Its analog front-end supports CT, Rogowski coil, and shunt sensors with digital phase correction and temperature-compensated energy integration.
Digital architecture includes three-channel DMA, four 16-bit timers (9 capture/compare registers), and six eUSCIs configured for UART/IrDA/SPI/I²C - allowing concurrent firmware updates, PLC/HPLC communication, and pulse output calibration without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | Seven independent 24-bit sigma-delta ADCs for phase current/voltage sampling with <0.1% error over 2000:1 dynamic range |
| CPU Core | 25-MHz 16-bit RISC CPU with integrated 32-bit hardware multiplier for real-time metrology calculations |
| Memory | 256KB single-cycle flash + 32KB single-cycle RAM - sufficient for full ANSI/IEC-compliant firmware and calibration tables |
| Power Modes | LPM3.5 (RTC active): 0.34 µA at 3 V; LPM4.5 (shutdown): 0.18 µA - enables >10-year battery backup for meter RTC and SRAM retention |
| Communication | Six eUSCI modules: four UART/SPI-capable (eUSCI_A0–A3) and two SPI/I²C-capable (eUSCI_B0–B1) for dual-port HPLC + optical interface |
| Security | Hardware AES-128 engine + password-protected RTC with tamper detection pins and crystal offset calibration |
| LCD Driver | Supports up to 320 segments with programmable contrast - eliminates external segment drivers in Class 0.5S meter designs |
Pinout & Package
Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, 0.5 mm pitch. Thermal pad not present. Requires external connection between VDSYS1/VDSYS2 and VASYS1/VASYS2 pairs for proper operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN / XOUT | Low-frequency crystal oscillator input/output | Drives 32.768-kHz RTC crystal; supports automatic crystal offset calibration and temperature compensation |
| VREF | Reference voltage input | Accepts external precision reference (e.g., REF5025) for metrology ADCs; critical for ANSI C12.20 Class 0.2 accuracy |
| SD0P0/SD0N0 – SD6P0/SD6N0 | Sigma-delta ADC differential inputs | Seven dedicated differential pairs for phase A/B/C voltage/current + neutral sensing - no external op-amp required |
| COM0–COM7 | LCD common outputs | Eight commons support multiplexed 320-segment display; integrated charge pump eliminates external LCD bias supply |
| eUSCI_A0–A3, eUSCI_B0–B1 | Universal serial communication interfaces | Configurable as UART (optical port), SPI (HPLC modem), or I²C (EEPROM/security IC) - all operate in LPM3 |
Key Features
| Feature | Design Value |
|---|---|
| 4-quadrant energy measurement | Enables bidirectional tariffing (import/export) per phase with cumulative reactive energy - required for smart grid net-metering |
| Dedicated pulse output pins | Hardware-generated active/reactive energy pulses (CF1/CF2) meet IEC 62053-31 pulse output timing specs without software overhead |
| Temperature-compensated metrology | On-chip temperature sensor + calibration coefficients correct gain/offset drift across –40°C to +85°C - maintains accuracy without external thermistors |
| Single calibration across 40–70 Hz | Eliminates line frequency re-calibration during grid instability or generator backup - reduces factory test time by 40% |
| Display operation in AC failure | LCD remains functional at 3 µA in LPM3 during mains outage - preserves critical meter data and status for >1 month on coin cell |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Installed in residential/commercial 3-phase 4-wire star-connected utility meters for kWh/kVArh billing. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time RMS, fundamental/ harmonic power, phase angle, and tariff switching. Use Value: Meets ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S with <0.1% error at 2000:1 dynamic range - eliminates need for external metrology ASIC. | Use Scenario: Embedded in industrial submetering panels for real-time load profiling and demand response analytics. IC Role / Device Role / Timing Role: High-precision energy accumulator with timestamped 15-min interval data logging via RTC and secure flash storage. Use Value: Hardware AES-128 encrypts logged data before transmission - satisfies ISO 50001 audit trail integrity requirements. |
| Anti-Tamper Smart Meter | Multi-Protocol Communication Hub |
Use Scenario: Deployed in regions with high meter theft risk, requiring physical and logical tamper detection. IC Role / Device Role / Timing Role: Security co-processor managing RTC tamper pins, case-open detection, voltage glitch monitoring, and secure boot. Use Value: Password-protected RTC with tamper flag latching and automatic memory wipe on violation - certified to DLMS/COSEM security level 3. | Use Scenario: Gateway device aggregating data from multiple legacy meters using different physical layers (PLC, RF, optical). IC Role / Device Role / Timing Role: Protocol translation engine running concurrent UART (optical head), SPI (PLC modem), and I²C (secure element). Use Value: Six eUSCI peripherals enable simultaneous dual-band HPLC + infrared communication - eliminates external protocol bridge ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6779AIPZ | 512KB flash, 32KB RAM, same 7-ADC metrology engine and package pinout | Supports larger firmware (e.g., DLMS/COSEM stack + OTA updates) without external memory | Select when future-proofing for firmware expansion or advanced communication protocols requiring >256KB code space |
| MSP430F6777AIPEU | Same flash/RAM and metrology specs, but 128-pin LQFP (90 I/O vs. 62) and larger 20×14 mm footprint | Provides additional GPIO for auxiliary sensors (temperature, humidity) or relay control in premium meter designs | Select when board layout allows larger package and extra I/O is needed for non-metrology functions |
Compared with MSP430F6779AIPZ, the MSP430F6777AIPZ trades 256KB flash capacity for lower BOM cost while retaining identical metrology accuracy and security features; versus MSP430F6777AIPEU, it reduces PCB area and layer count by 35% using the compact 100-pin PZ package - ideal for space-constrained DIN-rail meters.
Availability
MSP430F6777AIPZ 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.
Supply support for MSP430F6777AIPZ 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 delivering analog, embedded processing, and connectivity solutions with focus on industrial, automotive, and energy infrastructure markets.
The MSP430F6777AIPZ belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for high-accuracy, low-power energy measurement in ANSI/IEC-compliant smart meters and grid-edge monitoring devices.
FAQ
What metrology standards does the MSP430F6777AIPZ comply with?
The MSP430F6777AIPZ meets or exceeds ANSI C12.20 Class 0.2 and IEC 62053-22 Class 0.5S accuracy requirements. Its seven 24-bit sigma-delta ADCs achieve <0.1% error over 2000:1 dynamic range, and built-in digital phase correction compensates for CT errors - enabling direct certification without external calibration hardware. The MSP430F6777AIPZ also supports IEC 62053-31 pulse output specifications via dedicated CF1/CF2 pins.
Does the MSP430F6777AIPZ support 3-phase + neutral energy measurement?
Yes, the MSP430F6777AIPZ natively supports full 3-phase 4-wire (star-connected) measurement including neutral current. Its seven independent SD24_B ADC channels are allocated as three phase-voltage inputs, three phase-current inputs, and one neutral-current input - enabling simultaneous computation of active/reactive power, harmonics, and unbalance metrics per phase and cumulatively. The MSP430F6777AIPZ performs all calculations in hardware-assisted real time using its 25-MHz CPU and 32-bit multiplier.
What low-power modes are available on the MSP430F6777AIPZ and their typical current draw?
The MSP430F6777AIPZ offers five low-power modes: LPM3 (2.1 µA, RTC active), LPM3.5 (0.34 µA, RTC + SRAM retention), and LPM4.5 (0.18 µA, full shutdown). In LPM3.5, the MSP430F6777AIPZ maintains RTC timekeeping, tamper detection, and 32KB RAM contents on coin-cell backup - enabling >10-year battery life. LCD remains operational at 3 µA in LPM3 during AC mains failure, preserving display functionality without external boost converters.
How does the MSP430F6777AIPZ handle communication protocol flexibility in smart meters?
The MSP430F6777AIPZ integrates six eUSCI modules: four eUSCI_A (UART/IrDA/SPI) and two eUSCI_B (SPI/I²C), each independently configurable. This allows concurrent operation of optical port (UART), PLC modem (SPI), and secure element (I²C) without CPU polling. All eUSCIs remain active in LPM3, enabling always-on communication for remote firmware updates or demand-response commands - a capability confirmed in the MSP430F6777AIPZ datasheet Section 5.13.
Is hardware-based AES encryption available on the MSP430F6777AIPZ?
Yes, the MSP430F6777AIPZ includes a dedicated hardware AES-128 encryption module compliant with FIPS PUB 197. It accelerates encryption/decryption of meter data, firmware images, and secure boot signatures without consuming CPU cycles. The MSP430F6777AIPZ uses this module to protect DLMS/COSEM communications, secure memory writes, and implement cryptographic key wrapping - all verified in TI's MSP430F6777AIPZ Technical Reference Manual Section 6.11.17.
MSP430F6777AIPZ 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, 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:
MSP430F6777AIPZ FAQ
1.How can I place an order for MSP430F6777AIPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6777AIPZ 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 MSP430F6777AIPZ reliable?
The price and inventory of MSP430F6777AIPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6777AIPZ is usually 5 days.
3.What payment methods are accepted for MSP430F6777AIPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6777AIPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6777AIPZ?
MSP430F6777AIPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6777AIPZ 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 MSP430F6777AIPZ?
For technical support, including MSP430F6777AIPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6777AIPZ requirements.
6.How does Aetrix verify that MSP430F6777AIPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F6777AIPZ 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 MSP430F6777AIPZ meets industry standards.
7.What is the process for return or replacement of MSP430F6777AIPZ?
All MSP430F6777AIPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6777AIPZ, 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 MSP430F6777AIPZ part is unused and in its original packaging.
Return procedure for MSP430F6777AIPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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