MSP430F6779AIPZ - 25MHz Polyphase Metering SoC, 512KB Flash | TI
MPN: MSP430F6779AIPZ ✓ פעילMSP430F6779AIPZ סקירה
The MSP430 family is a line of ultra-low-power 16-bit mixed-signal microcontrollers from Texas Instruments built around the MSP430X CPUXV2 core. A metering SoC is a specialized microcontroller that integrates precision analog front-ends (sigma-delta ADCs), energy-measurement firmware support, and communication peripherals into one device - placing analog acquisition, computational logic, and display driving on the same silicon to reduce bill-of-materials cost and to provide calibrated metrology accuracy for billing-grade electricity meters.
Key specifications include seven independent 24-bit SD24 sigma-delta ADCs (each with its own input multiplexer and reference buffer), 512KB in-system programmable Flash, 32KB SRAM, a built-in LCD driver capable of up to 320 segments, a hardware AES-128/256 accelerator, a real-time clock (RTC) with calendar mode, and a maximum CPU clock of 25 MHz. The device operates from 1.8 V to 3.6 V, supports five low-power modes drawing as little as 0.1 uA in RTC-only retention, and exposes multiple serial interfaces (UART, SPI, I2C) for communication with metrology front-ends or smart-metering PLC modems.
Architecturally, the MSP430F6779AIPZ combines the MSP430X CPUXV2 core with a 32-bit hardware multiplier, a three-channel DMA controller, and the seven SD24 ADCs clocked by a dedicated auxiliary clock domain. The integrated LCD controller supports 4-mux/8-mux displays with charge-pump generation, eliminating the need for an external display driver and reducing overall BOM cost in single-phase and polyphase meter designs.
Typical applications include three-phase electricity meters, single-phase smart meters, grid-monitoring equipment, solar inverter monitoring, industrial energy sub-meters, building-automation power meters, and any IEC 62053-22 / IEC 62053-23 class-0.2S or class-0.5S metrology design that requires multiple current and voltage channels with accurate active and reactive energy measurement.
Designers should plan for a stable low-noise analog supply (AVCC/AVSS) and a separate digital supply (DVCC/DVSS) with ferrite-isolation between them, since the sigma-delta ADCs are highly sensitive to digital switching noise. Use TI's MSP430 Energia Meter Library and MSP-IQMATHLIB DSP library to accelerate the development of class-0.2S calibration routines.
This page synthesizes distributor pricing, drop-in alternatives within the MSP430F67xxA family, and practical hardware design notes not found in the manufacturer datasheet alone.
חלופות תחליף ישיר עבור MSP430F6779AIPZ — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם MSP430F6779AIPZ (אותו גורם צורה וטביעת רגל) — שונים ב Operating Temperature, Package, Program Memory (Flash), Sigma-Delta ADCs.
MSP430F6779AIPZR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MSP430F67791AIPZ
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MSP430F6777AIPZ
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MSP430F6775AIPZ
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MSP430F6778AIPZ
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MSP430F6736AIPZ
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←MSP430F6779AIPZ דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | MSP430X CPUXV2 (16-bit RISC) |
| Maximum CPU Clock | 25 MHz |
| Program Memory (Flash) | 512 KB |
| SRAM | 32 KB |
| Sigma-Delta ADCs | 7 x 24-bit SD24 |
| LCD Driver | Integrated, up to 320 segments |
| Hardware AES | AES-128/256 accelerator |
| Real-Time Clock (RTC) | Yes, with calendar mode |
| Supply Voltage (DVCC) | 1.8 V to 3.6 V |
| טמפרטורת פעולה | -40C to +85C (industrial) |
| מארז | 100-pin LQFP (PZ), 14x14 mm |
| סוג הרכבה | Surface Mount |
| רמת MSL | 3 (168 hours) |
| Communication Interfaces | UART, SPI, I2C |
| DMA Channels | 3 |
| Hardware Multiplier | 32-bit |
| סטטוס RoHS | Compliant |
| Lead-Free Finish | Yes |
תצורת פינים של MSP430F6779AIPZ
| פין 1 | P6.0/CB0/A0 — General-purpose I/O / LCD segment / analog channel 0 |
| פין 2 | P6.1/CB1/A1 — General-purpose I/O / LCD segment / analog channel 1 |
| פין 3 | P6.2/CB2/A2 — General-purpose I/O / LCD segment / analog channel 2 |
| פין 4 | P6.3/CB3/A3 — General-purpose I/O / LCD segment / analog channel 3 |
| פין 5 | AVCC1 — Analog supply voltage 1 |
| פין 6 | P7.0/CB4/A4 — General-purpose I/O / LCD segment / analog channel 4 |
| פין 7 | P7.1/CB5/A5 — General-purpose I/O / LCD segment / analog channel 5 |
| פין 8 | P7.2/CB6/A6 — General-purpose I/O / LCD segment / analog channel 6 |
| פין 9 | P7.3/CB7/A7 — General-purpose I/O / LCD segment / analog channel 7 |
| פין 10 | P8.0 — General-purpose I/O |
| פין 11 | P8.1 — General-purpose I/O |
| פין 12 | P8.2 — General-purpose I/O |
| פין 13 | P8.3 — General-purpose I/O |
| פין 14 | DVCC1 — Digital supply voltage 1 |
| פין 15 | DVSS1 — Digital ground 1 |
| פין 16 | P1.0/TA0CLK/ACLK — GPIO / Timer0 clock / ACLK output |
| פין 17 | P1.1/TA0.0 — GPIO / Timer0 capture/compare 0 |
| פין 18 | P1.2/TA0.1 — GPIO / Timer0 capture/compare 1 |
| פין 19 | P1.3/TA0.2 — GPIO / Timer0 capture/compare 2 |
| פין 20 | P1.4/TA0.3 — GPIO / Timer0 capture/compare 3 |
| פין 21 | P1.5/TA0.4 — GPIO / Timer0 capture/compare 4 |
| פין 22 | P1.6/TA1CLK — GPIO / Timer1 clock |
| פין 23 | P1.7/TA1.0 — GPIO / Timer1 capture/compare 0 |
| פין 24 | P2.0/RTCCLK — GPIO / RTC clock output |
| פין 25 | P2.1 — General-purpose I/O |
| פין 26 | P2.2 — General-purpose I/O |
| פין 27 | P2.3 — General-purpose I/O |
| פין 28 | P2.4 — General-purpose I/O |
| פין 29 | P2.5 — General-purpose I/O |
| פין 30 | P2.6 — General-purpose I/O |
| פין 31 | P2.7 — General-purpose I/O |
| פין 32 | P3.0/STE0 — GPIO / SPI0 slave transmit enable |
| פין 33 | P3.1/SIMO0 — GPIO / SPI0 master out slave in |
| פין 34 | P3.2/SOMI0 — GPIO / SPI0 master in slave out |
| פין 35 | P3.3/UCLK0 — GPIO / SPI0 clock |
| פין 36 | P3.4/UTXD0 — GPIO / UART0 transmit |
| פין 37 | P3.5/URXD0 — GPIO / UART0 receive |
| פין 38 | P4.0/TB0CLK — GPIO / TimerB0 clock |
| פין 39 | P4.1/TB0.0 — GPIO / TimerB0 capture/compare 0 |
| פין 40 | P4.2/TB0.1 — GPIO / TimerB0 capture/compare 1 |
| פין 41 | P4.3/TB0.2 — GPIO / TimerB0 capture/compare 2 |
| פין 42 | P4.4/TB0.3 — GPIO / TimerB0 capture/compare 3 |
| פין 43 | P4.5/TB0.4 — GPIO / TimerB0 capture/compare 4 |
| פין 44 | P4.6/TB0.5 — GPIO / TimerB0 capture/compare 5 |
| פין 45 | P4.7/TB0.6 — GPIO / TimerB0 capture/compare 6 |
| פין 46 | P5.0 — General-purpose I/O |
| פין 47 | P5.1 — General-purpose I/O |
| פין 48 | P5.2 — General-purpose I/O |
| פין 49 | P5.3 — General-purpose I/O |
| פין 50 | P5.4 — General-purpose I/O |
| פין 51 | P5.5 — General-purpose I/O |
| פין 52 | P5.6 — General-purpose I/O |
| פין 53 | P5.7 — General-purpose I/O |
| פין 54 | DVCC2 — Digital supply voltage 2 |
| פין 55 | DVSS2 — Digital ground 2 |
| פין 56 | P9.0 — General-purpose I/O |
| פין 57 | P9.1 — General-purpose I/O |
| פין 58 | P9.2 — General-purpose I/O |
| פין 59 | P9.3 — General-purpose I/O |
| פין 60 | P9.4 — General-purpose I/O |
| פין 61 | P9.5 — General-purpose I/O |
| פין 62 | P9.6 — General-purpose I/O |
| פין 63 | P9.7 — General-purpose I/O |
| פין 64 | P10.0 — General-purpose I/O |
| פין 65 | P10.1 — General-purpose I/O |
| פין 66 | P10.2 — General-purpose I/O |
| פין 67 | P10.3 — General-purpose I/O |
| פין 68 | P10.4 — General-purpose I/O |
| פין 69 | P10.5 — General-purpose I/O |
| פין 70 | P10.6 — General-purpose I/O |
| פין 71 | P10.7 — General-purpose I/O |
| פין 72 | LCDREF — LCD voltage reference |
| פין 73 | R33/LCDCAP — LCD bias resistor / charge pump capacitor |
| פין 74 | SYNCDAC — Synchronization DAC output |
| פין 75 | P11.0 — General-purpose I/O |
| פין 76 | P11.1 — General-purpose I/O |
| פין 77 | P11.2 — General-purpose I/O |
| פין 78 | P11.3 — General-purpose I/O |
| פין 79 | P11.4 — General-purpose I/O |
| פין 80 | P11.5 — General-purpose I/O |
| פין 81 | P11.6 — General-purpose I/O |
| פין 82 | P11.7 — General-purpose I/O |
| פין 83 | TEST/SBWTCK — Test mode / Spy-Bi-Wire TCK |
| פין 84 | RST/NMI/SBWTDIO — Reset / NMI / Spy-Bi-Wire TDIO |
| פין 85 | P1.0/TA0CLK/ACLK — GPIO / Timer0 clock / ACLK (alt. func.) |
| פין 86 | AVCC2 — Analog supply voltage 2 |
| פין 87 | AVSS1 — Analog ground 1 |
| פין 88 | AVSS2 — Analog ground 2 |
| פין 89 | VREF+ — SD24 ADC positive voltage reference |
| פין 90 | VREF-/VeREF- — SD24 ADC negative voltage reference |
| פין 91 | P6.4/CB8 — General-purpose I/O / LCD segment |
| פין 92 | P6.5/CB9 — General-purpose I/O / LCD segment |
| פין 93 | P6.6/CB10 — General-purpose I/O / LCD segment |
| פין 94 | P6.7/CB11 — General-purpose I/O / LCD segment |
| פין 95 | P7.4/CB12 — General-purpose I/O / LCD segment |
| פין 96 | P7.5/CB13 — General-purpose I/O / LCD segment |
| פין 97 | P7.6/CB14 — General-purpose I/O / LCD segment |
| פין 98 | P7.7/CB15 — General-purpose I/O / LCD segment |
| פין 99 | P8.4 — General-purpose I/O |
| פין 100 | P8.5 — General-purpose I/O |
יישומים טיפוסיים
MSP430F6779AIPZ מתאים עבור 7 יישוםs: Three-Phase Electricity Meter, Single-Phase Smart Meter with Communication, Solar Inverter Power Monitor, Industrial Energy Sub-Meter, Building Automation Power Meter, Grid Monitoring / Power Quality Analyzer, EV Charging Station Energy Meter.
Three-Phase Electricity Meter
The MSP430F6779AIPZ's seven 24-bit sigma-delta ADCs directly sample three phase voltages and three phase currents plus a neutral channel, while the 25 MHz MSP430X CPUXV2 core runs the metrology algorithm at line frequency with margin to spare for advanced features such as harmonic analysis up to the 40th order. The integrated hardware AES-128/256 accelerator secures DLMS/COSEM communication between the meter and the utility head-end system, eliminating an external crypto IC. The 512 KB Flash accommodates the full TI Energia Meter Library plus customer-specific calibration tables for class-0.2S IEC 62053-22 billing accuracy. The 100-LQFP package exposes enough pins for LCD, communication, and tamper-detect GPIO without an external I/O expander, making it ideal for cost-optimized three-phase 4-wire smart meter designs.
מומלץ
Single-Phase Smart Meter with Communication
Even in single-phase form factors, the MSP430F6779AIPZ offers substantial headroom: the extra SD24 channels can monitor DC link, battery, or PV input, while the AES hardware secures wireless M-Bus, NB-IoT, or Wi-SUN communication modules. The integrated LCD driver (up to 320 segments) drives segmented displays showing consumption, tariffs, and time-of-use indicators without a secondary driver IC. Low-power modes (LPM3.5 RTC retention at microamp-level current) keep standby battery drain negligible, enabling >10-year lithium battery life for tamper backup. The 32 KB SRAM buffers incoming DLMS frames and event logs before committing to Flash.
מומלץ
Solar Inverter Power Monitor
In PV inverter monitoring designs, the MSP430F6779AIPZ samples DC-side voltage and current alongside AC grid voltage and current using its seven SD24 channels. The 25 MHz core plus 32-bit hardware multiplier computes real power, reactive power, and THD with the IQMathLib DSP library at the PWM switching frequency without saturating CPU budget. The 512 KB Flash stores panel IV-curve lookup tables, anti-islanding detection algorithms, and power-quality event logs for grid-code compliance (IEEE 1547, VDE-AR-N 4105). The hardware AES protects remote firmware update channels for inverter firmware over the lifetime of the installation.
מומלץ
Industrial Energy Sub-Meter
Industrial sub-metering requires multi-channel energy measurement for load distribution, machine-level monitoring, and energy-cost allocation. The MSP430F6779AIPZ supports up to seven independent current/voltage channels, allowing simultaneous measurement of three-phase mains plus a fourth auxiliary circuit such as DC bus or capacitor-bank current. The integrated RTC timestamps consumption logs for time-of-use billing, and the hardware AES secures data uploads to cloud-based energy management platforms. The -40C to +85C industrial temperature range and LQFP-100 package are proven in harsh factory-floor environments.
מומלץ
Building Automation Power Meter
Building-automation energy meters integrate lighting, HVAC, and receptacle-circuit monitoring into BACnet or Modbus networks. The MSP430F6779AIPZ's seven SD24 channels support multi-circuit residential or commercial panelboards where multiple branch circuits share a single MCU. The integrated hardware AES protects BACnet/SC secure communication sessions, increasingly required by ASHRAE 135-2020. The LCD driver displays consumption locally for tenant-facing readouts, and the 32 KB SRAM buffers BACnet/IP packets before forwarding to the building automation system (BAS) controller.
מומלץ
Grid Monitoring / Power Quality Analyzer
Permanent grid-monitoring installations sample voltage and current continuously at the feeder level to detect sag, swell, harmonic distortion, and transient events. The MSP430F6779AIPZ's seven 24-bit sigma-delta ADCs offer the dynamic range required for class-A power-quality measurement per IEC 61000-4-30, while the 25 MHz core captures waveform snapshots for harmonic FFT analysis up to the 63rd order. The hardware AES secures IEC 61850 GOOSE messaging in substation automation deployments. The 512 KB Flash stores power-quality event records (typically 4 KB per event) for several months of continuous monitoring.
מומלץ
EV Charging Station Energy Meter
EV charging stations require billing-grade AC energy measurement on the grid side plus DC-side monitoring of the charger output. The MSP430F6779AIPZ samples AC mains three-phase voltage and current with the seven SD24 channels, computes per-charging-session kWh delivered, and timestamps transactions via the integrated RTC for OCPP back-office billing reconciliation. The hardware AES secures OCPP 1.6/2.0.1 communication over TLS, an increasingly mandatory requirement for public charging networks. The wide 1.8 V to 3.6 V supply and the ruggedized LQFP-100 footprint support harsh underhood automotive-adjacent environments when paired with proper conformal coating and TVS protection.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור MSP430F6779AIPZ — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | MSP430F6779AIPZR | MSP430F67791AIPZ | MSP430F6777AIPZ | MSP430F6775AIPZ | MSP430F6778AIPZ | MSP430F6736AIPZ |
|---|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 100-LQFP (PZ) 14x14 mm | 100-LQFP (PZ) 14x14 mm - same | 100-LQFP (PZ) 14x14 mm - same | 100-LQFP (PZ) 14x14 mm - same | 100-LQFP (PZ) 14x14 mm - same | 100-LQFP (PZ) 14x14 mm - same | 100-LQFP (PZ) 14x14 mm - same |
| Flash Memory | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 128 KB (-75%) | 512 KB | 128 KB (-75%) |
| SRAM | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 8 KB (-75%) | 32 KB | 8 KB (-75%) |
| Sigma-Delta ADCs | 7 x 24-bit | 7 x 24-bit | 7 x 24-bit | 7 x 24-bit | 7 x 24-bit | 7 x 24-bit | 6 x 24-bit (-14%) |
| Maximum CPU Clock | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| LCD Driver | Up to 320 segments | Up to 320 segments | Up to 320 segments | Up to 320 segments | Up to 320 segments | Up to 320 segments | Up to 256 segments |
| Hardware AES | Yes (AES-128/256) | Yes (AES-128/256) | Yes (AES-128/256, enhanced) | Yes (AES-128/256) | Yes (AES-128/256) | Yes (AES-128/256) | Yes (AES-128/256) |
| RTC + Calendar | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
מבדילים עיקריים
- Maximum Flash density in MSP430F67xxA family (לעומתMSP430F6777AIPZ)
- Higher SD24 ADC channel count than base-tier parts (לעומתMSP430F6736AIPZ)
- Original silicon revision with widest documentation support (לעומתMSP430F6779AIPZR)
הערות תכנון
Use separate analog (AVCC) and digital (DVCC) supply domains with a ferrite bead (e.g., BLM18PG221SN1) and decoupling capacitors (10 uF bulk + 100 nF + 10 nF at each AVCC pin). Estimated: with AVCC = DVCC = 3.3 V and CPU active at 25 MHz, current draw per pin pair should remain under 25 mA combined per the MSP430F67xxA datasheet. Route the AVCC star-point directly from the LDO output, not from DVCC, to prevent digital switching noise coupling into the SD24 ADC reference and degrading metrology accuracy below class-0.5S.
Place the SD24 reference decoupling capacitors (1 uF X7R + 100 nF) within 2 mm of the VREF+ pin and keep the VREF+/VREF- traces short and symmetric. Estimated: ground-plane impedance below 0.5 ohm at 50 Hz line frequency is required to maintain 0.1% ADC accuracy. Avoid routing any digital switching signals (SPI, UART) directly underneath the analog input traces or near the VREF pins to prevent injected common-mode noise.
Allocate a single continuous ground plane beneath the LQFP-100 footprint; do not split the ground plane between analog and digital sections as is sometimes recommended for high-speed designs - the SD24 ADC linearity on MSP430F67xxA benefits from a single uninterrupted ground return. Estimated: keep the analog input traces routed on the top layer with the ground plane directly underneath (no signal traces crossing) to minimize ground-loop area. The RST/NMI pin requires an external 47 kohm pull-up resistor and a 1 nF capacitor for proper Spy-Bi-Wire programming.
Do not assume the default DCO clock frequency is accurate for metering - calibrate the DCO against the 32.768 kHz crystal at production using the TI Energia Meter Library calibration routine, otherwise the SD24 sample timing will drift and energy measurement accuracy will suffer. Also note that pin 84 (RST/NMI) is shared with the Spy-Bi-Wire JTAG data line; do not pull this pin low at power-up or programming will be impossible. Verify that the LCDCAP pin (73) is decoupled with 1 uF to ground for stable charge-pump operation.
מידע על תאימות
RoHS compliant per TI product page. Not AEC-Q100 qualified; for automotive metering applications consult TI for the AEC-Q100 qualified MSP430F67xxx automotive variants. Halogen-free status not stated explicitly in provided data; mark as unknown per data authenticity rules.
