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Texas Instruments MSP430FR6979IPZ
- Part No.:
- MSP430FR6979IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430FR6979IPZ.pdf
- Description:
- IC MCU 16BIT 128KB FRAM 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,008
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Product details
Overview
MSP430FR6979IPZ from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 128KB nonvolatile memory, 2KB RAM, 12-bit ADC, integrated LCD driver (up to 320 segments), and dual eUSCI modules supporting UART, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered metering applications requiring RTC, capacitive touch, and cryptographic security.
For engineers reviewing the MSP430FR6979IPZ datasheet, MSP430FR6979IPZ pinout, MSP430FR6979IPZ application, or MSP430FR6979IPZ equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 RTC current (0.35 µA), AES256 coprocessor, 100-pin LQFP package, and support for up to 16 external ADC inputs.
Technical Context
The MSP430FR6979IPZ implements the CPUXV2 core with 16 general-purpose registers and integrates a flexible clock system featuring DCO (10 factory-trimmed frequencies), LFXT (32-kHz crystal), and HFXT (high-frequency crystal) support. Its power architecture delivers seven low-power modes, including LPM4.5 (0.02 µA shutdown) and LPM3.5 (RTC active at 0.35 µA).
Peripherals include three 16-bit Timer_A modules (TA0/TA1/TA3), one 16-bit Timer_B (TB0 with 7 capture/compare registers), 32-bit hardware multiplier, 3-channel DMA, CRC16/CRC32 engines, and dual eUSCI_A (UART/IrDA/SPI) and eUSCI_B (I²C/SPI) interfaces - all accessible via multiplexed I/O on 83 GPIO pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation |
| Nonvolatile Memory | 128KB FRAM with 10¹⁵ write endurance and 125 ns/word write speed |
| RAM | 2KB SRAM for runtime data and stack |
| ADC | 12-bit SAR ADC with internal reference, sample-and-hold, and up to 16 external input channels |
| LCD Driver | Integrated LCD_C module supporting static, 2–8 mux, up to 320 segments |
| Low-Power Modes | LPM3.5 (RTC active): 0.35 µA typical; LPM4.5 (shutdown): 0.02 µA typical |
| Crypto Engine | Hardware AES256 coprocessor with true random number seed generator |
Pinout & Package
The MSP430FR6979IPZ is housed in a 100-pin LQFP (PZ) package measuring 14 mm × 14 mm, with exposed thermal pad not connected per TI documentation. All 83 GPIO pins are multiplexed across analog, digital, timer, communication, and LCD functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O / TA0/TA1 / UCB0 / LCD | 8-bit port with capacitive touch, timer capture/compare, I²C, and segment drive capability |
| P2.0–P2.7 | General-purpose I/O / UCA0 / TB0 / COMx | 8-bit port supporting UART TX/RX, Timer_B outputs, and LCD backplane (COM0–COM7) |
| P6.0–P6.6 | General-purpose I/O / LCDREF / COMx / COUT | 7-pin group for LCD voltage reference (V2/V3), common outputs (COM0–COM3), and comparator output |
| PJ.4/PJ.5 | LFXT Input/Output | Dedicated 32-kHz crystal interface for RTC and low-power clock domain |
| PJ.6/PJ.7 | HFXT Input/Output | Dedicated high-frequency crystal interface for system clock generation (enabled on MSP430FR697x) |
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / JTAG debug | Multi-function pin for device reset, NMI assertion, and Spy-Bi-Wire programming/debug |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 128KB unified memory enabling simultaneous code execution and data logging without wear leveling |
| Ultra-low-power RTC | Calendar and alarm functions operating in LPM3.5 at 0.35 µA, powered by 32-kHz crystal |
| Capacitive Touch I/O | All P1–P10 and PJ pins support self-capacitive sensing without external components |
| Hardware Security | AES256 encryption/decryption coprocessor with dedicated key storage and TRNG seed source |
| EnergyTrace++ Support | Real-time current profiling and low-power mode analysis via integrated debug interface |
Applications
| Water Metering | Heat Cost Allocation |
|---|---|
Use Scenario: Battery-powered ultrasonic or mechanical water meters requiring decades of operation on a single coin cell. IC Role / Device Role / Timing Role: Main controller executing flow calculation, RTC-based billing intervals, and LCD display updates. Use Value: FRAM enables daily log writes without degradation; LPM3.5 RTC consumes only 0.35 µA, extending battery life beyond 10 years. | Use Scenario: Apartment-level heat cost allocators measuring radiator surface temperature and time-of-use. IC Role / Device Role / Timing Role: Sensor hub aggregating thermistor readings, managing calendar-based tariff periods, and driving segmented LCD. Use Value: Integrated 12-bit ADC and LCD_C driver reduce BOM count; AES256 secures billing data against tampering. |
| Portable Medical Logging | Data Acquisition Node |
Use Scenario: Handheld glucose monitors or ECG recorders needing secure, reliable long-term data storage. IC Role / Device Role / Timing Role: Data acquisition controller with real-time timestamping, sensor interfacing, and encrypted local storage. Use Value: 10¹⁵ FRAM write cycles ensure >20 years of daily 100-sample logs; hardware AES256 protects PHI-compliant records. | Use Scenario: Industrial environmental sensors logging temperature, humidity, and pressure at fixed intervals. IC Role / Device Role / Timing Role: Autonomous node performing scheduled measurements, storing results in FRAM, and transmitting via UART/I²C. Use Value: Unified FRAM simplifies firmware design; 3-channel DMA offloads ADC-to-memory transfers, minimizing CPU wake time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power FRAM microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR6977IPZ | 64KB FRAM (vs. 128KB), identical package, peripherals, and power specs | Suitable where firmware + data footprint fits within 64KB; no change to PCB or software architecture required | Select when application memory requirements are ≤64KB and cost optimization is prioritized |
| MSP430FR6928IPM | 96KB FRAM, 64-pin LQFP (10 mm × 10 mm), no HFXT support, reduced I/O (52 pins) | Targeted for space-constrained designs with lower peripheral count and no high-frequency crystal requirement | Choose for compact form factor and simplified clock tree where HFXT and full I/O are unnecessary |
Compared with MSP430FR6977IPZ and MSP430FR6928IPM, the MSP430FR6979IPZ provides maximum FRAM capacity and full 100-pin I/O flexibility - critical for complex metering systems requiring concurrent LCD, multiple sensors, and secure over-the-air update capability.
Availability
MSP430FR6979IPZ is available at Aetrix Electronics and suitable for water metering, heat cost allocation, and portable medical logging requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR6979IPZ 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 delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.
The MSP430FR69xx product line is engineered for ultra-low-power, battery-operated metering and sensing applications - integrating FRAM, LCD drivers, RTC, and hardware security into a single-chip solution.
FAQ
What is the maximum operating frequency of the MSP430FR6979IPZ?
The MSP430FR6979IPZ supports a maximum system clock frequency of 16 MHz using its digitally controlled oscillator (DCO) or external HFXT crystal. This allows real-time signal processing and fast FRAM writes while maintaining ultra-low-power operation in active mode (≈100 µA/MHz). The DCO offers 10 factory-trimmed frequencies for precise calibration without external components.
Does the MSP430FR6979IPZ support hardware AES encryption?
Yes, the MSP430FR6979IPZ includes a dedicated hardware AES256 coprocessor with support for both encryption and decryption. It also features a true random number seed generator for cryptographically secure key derivation. This enables secure firmware updates, protected data logging, and compliance with regulatory requirements for metering and medical devices - all without burdening the CPU.
How many LCD segments can the MSP430FR6979IPZ drive?
The MSP430FR6979IPZ integrates the LCD_C module capable of driving up to 320 segments in static, 2-, 3-, 4-, 6-, or 8-mux configurations. This is enabled by dedicated COM0–COM7 outputs and segment pins distributed across P1–P10 and PJ ports. The driver includes contrast control and charge pump support, eliminating the need for external bias circuitry in most implementations.
What low-power modes are available on the MSP430FR6979IPZ?
The MSP430FR6979IPZ offers seven optimized low-power modes: LPM0–LPM4, plus LPM3.5 and LPM4.5. LPM3.5 maintains RTC operation at 0.35 µA (typical), while LPM4.5 achieves 0.02 µA (typical) shutdown current. Wake-up sources include port interrupts, RTC alarms, and peripheral events - enabling sub-microamp average system current in battery-powered applications.
Is the MSP430FR6979IPZ pin-compatible with other devices in the FR69xx family?
The MSP430FR6979IPZ in the 100-pin LQFP (PZ) package shares identical pinout with MSP430FR6977IPZ and MSP430FR69791IPZ. However, it is not pin-compatible with 80-pin (PN) or 64-pin (PM/RGC) variants due to differing I/O counts and package-specific signal mappings. Always verify pin assignments using TI's SLAS797C datasheet Section 4.1 for the target package.
MSP430FR6979IPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430™ FRAM
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 63
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR6979IPZ FAQ
1.How can I place an order for MSP430FR6979IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6979IPZ 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 MSP430FR6979IPZ reliable?
The price and inventory of MSP430FR6979IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6979IPZ is usually 5 days.
3.What payment methods are accepted for MSP430FR6979IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6979IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6979IPZ?
MSP430FR6979IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6979IPZ 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 MSP430FR6979IPZ?
For technical support, including MSP430FR6979IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6979IPZ requirements.
6.How does Aetrix verify that MSP430FR6979IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430FR6979IPZ 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 MSP430FR6979IPZ meets industry standards.
7.What is the process for return or replacement of MSP430FR6979IPZ?
All MSP430FR6979IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6979IPZ, 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 MSP430FR6979IPZ part is unused and in its original packaging.
Return procedure for MSP430FR6979IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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