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Texas Instruments MSP430FR6972IRGCT
- Part No.:
- MSP430FR6972IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR6972IRGCT.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,408
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Product details
Overview
MSP430FR6972IRGCT from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller featuring 64KB nonvolatile FRAM, 2KB RAM, integrated 12-bit ADC with 8 external channels, 112-segment LCD driver, and dual eUSCI modules supporting UART, IrDA, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered utility meters and sensor nodes.
For engineers reviewing the MSP430FR6972IRGCT datasheet, MSP430FR6972IRGCT pinout, MSP430FR6972IRGCT application, or MSP430FR6972IRGCT equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC-enabled LPM3.5 current (0.35 µA), AES256 encryption coprocessor, and VQFN-64 package compatibility with industrial metering layouts.
Technical Context
The MSP430FR6972IRGCT implements a CPUXV2 core with 16 general-purpose registers and executes instructions at up to 16 MHz using a factory-trimmed DCO or external HFXT/LFXT crystals. Its low-power architecture supports seven operating modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown), with supply current as low as 0.04 µA.
Peripherals include three 16-bit Timer_A instances (3/3/2 capture/compare registers), one 16-bit Timer_B (2/5 registers), 32-bit hardware multiplier, three-channel DMA, CRC16/CRC32 engines, and capacitive touch I/O on all ports without external components - all mapped to a unified FRAM memory space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation with DCO/HFXT/LFXT clock sources |
| Nonvolatile Memory | 64KB FRAM with 10¹⁵ write endurance, unified program/data/storage space |
| RAM | 2KB SRAM + 26B Tiny RAM for LPM retention |
| ADC | 12-bit SAR ADC with internal reference, sample-and-hold, and up to 8 external input channels |
| LCD Driver | Integrated 112-segment LCD controller with contrast control and static/2–4 mux support |
| Security | Hardware AES256 encryption/decryption coprocessor and lockable memory segments |
| Low-Power Modes | LPM3.5 (RTC active): 0.35 µA typical; LPM4.5 (shutdown): 0.04 µA typical |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm body, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, ADC inputs, timer I/O | Support edge-selectable LPM wakeup, programmable pullup/pulldown, and analog/digital multiplexing |
| P2.0–P2.3 | UART BSL interface (BSL_TX/BSL_RX), RTCCLK, TB0 outputs | Enable in-system programming via UART; RTC clock input supports calendar functionality |
| P3.0–P3.7 | eUSCI_B1 (I²C/SPI), TA1/TB0 timer I/O, DMA trigger | Support multi-slave I²C addressing and SPI at up to 10 Mbps; TB0 provides COM segment outputs |
| P6.0–P6.6 | LCD segment/com drivers (R23, R13, COM0–COM3), COUT | Direct drive of 112-segment LCD; COM lines enable 4-mux configuration for compact display integration |
| PJ.4/PJ.5 | LFXT crystal oscillator terminals (LFXIN/LFXOUT) | Support 32-kHz crystal for RTC accuracy; required for LPM3.5 real-time calendar operation |
| RST/NMI/SBWTDIO | Reset, non-maskable interrupt, JTAG/Spy-Bi-Wire debug I/O | Single-pin 4-wire Spy-Bi-Wire interface enables debugging and programming with minimal PCB footprint |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory enabling instant write, 125 ns/word speed, and elimination of flash erase delays |
| Ultra-Low-Power RTC | Calendar mode with alarm functions in LPM3.5 at 0.35 µA - enables decade-long battery life in metering |
| Capacitive Touch I/O | All GPIO pins support touch sensing without external RC networks or dedicated peripherals |
| Hardware Security | AES256 coprocessor accelerates encrypted firmware updates and secure data storage in FRAM |
| Flexible Clock System | DCO with 10 factory-trimmed frequencies plus LFXT/HFXT support enables precise timing across voltage/temperature |
Applications
| Heat Cost Allocators | Electricity/Water/Gas Meters |
|---|---|
Use Scenario: Compact, battery-powered thermal energy measurement units installed in residential radiators. IC Role / Device Role / Timing Role: Main system controller managing temperature differential sampling, time-stamped consumption logging, and LCD display. Use Value: FRAM enables reliable daily log writes over 10+ years; LPM3.5 RTC maintains calendar accuracy during 10-year battery life. | Use Scenario: ANSI C12-compliant utility meters requiring tamper detection, secure firmware updates, and long-term data retention. IC Role / Device Role / Timing Role: Primary MCU handling metrology ADC sampling, AES-encrypted data transmission, and real-time billing timestamping. Use Value: Hardware AES256 ensures secure Over-the-Air updates; 64KB FRAM stores 36+ months of interval data without wear leveling. |
| Thermostats | Portable Medical Sensors |
Use Scenario: Wireless, battery-operated HVAC controllers with ambient sensing, user interface, and BLE gateway connectivity. IC Role / Device Role / Timing Role: Central processor managing sensor fusion (temp/humidity), capacitive touch UI, and low-power wireless co-processor interface. Use Value: All-port capacitive touch eliminates front-panel buttons; FRAM retains calibration and schedule settings through power loss. | Use Scenario: Handheld glucose monitors or pulse oximeters requiring FDA-grade data integrity and single-button operation. IC Role / Device Role / Timing Role: Safety-critical controller executing ADC-driven analog signal processing, LCD guidance, and low-voltage brownout protection. Use Value: SVS and BOR ensure deterministic reset below 1.8 V; FRAM prevents data corruption during battery swap or voltage sag. |
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 |
|---|---|---|---|
| MSP430FR6972IPMR | LQFP-64 package (10 mm × 10 mm); identical electrical specs and FRAM/peripheral set | Better suited for manual assembly or prototyping; larger footprint than VQFN | Select when board layout requires through-hole-compatible land pattern or thermal management favors exposed pad-free package |
| MSP430FR6872IRGCT | Same VQFN-64 package and peripherals, but lacks AES256 encryption coprocessor | Applicable where security requirements are limited to software-based authentication only | Choose when cost sensitivity outweighs need for hardware-accelerated encryption in metering or sensor endpoints |
Compared with MSP430FR6972IPMR, the MSP430FR6972IRGCT offers identical functionality in a smaller 9 mm × 9 mm VQFN package with thermal pad grounding; versus MSP430FR6872IRGCT, it adds AES256 for secure firmware/data handling essential in certified utility infrastructure.
Availability
MSP430FR6972IRGCT is available at Aetrix Electronics and suitable for electricity meters, heat cost allocators, and portable medical sensors requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR6972IRGCT 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 for industrial, automotive, and consumer markets.
The MSP430FRxx family was designed specifically for ultra-low-power sensing and metering applications where FRAM endurance, sub-µA RTC operation, and integrated LCD/ADC reduce BOM count and extend battery life.
FAQ
What is the maximum operating frequency of the MSP430FR6972IRGCT?
The MSP430FR6972IRGCT supports a maximum CPU clock frequency of 16 MHz, achievable using the internal digitally controlled oscillator (DCO) with factory trimming or an external high-frequency crystal (HFXT). This frequency is maintained across the full 1.8 V to 3.6 V supply range, enabling deterministic real-time performance in metering and sensor applications where timing precision is critical.
Does the MSP430FR6972IRGCT support hardware AES encryption?
Yes, the MSP430FR6972IRGCT includes a dedicated hardware AES256 encryption and decryption coprocessor. This enables fast, low-power cryptographic operations for secure firmware updates, encrypted data logging in FRAM, and authenticated communication - a capability not present in the MSP430FR687x series and essential for utility meter certification standards like DLMS/COSEM.
What LCD segment count does the MSP430FR6972IRGCT support?
The MSP430FR6972IRGCT integrates an LCD_C peripheral supporting up to 112 segments in static, 2-, 3-, or 4-mux configurations. Segment assignments are mapped to P6.x, P3.x, and PJ.x pins per the device-specific pinout; the VQFN-64 package fully supports this 112-segment capability, making it suitable for feature-rich displays in thermostats and portable meters.
How many external ADC input channels does the MSP430FR6972IRGCT provide?
The MSP430FR6972IRGCT features a 12-bit ADC12_B module with up to 8 external analog input channels (A0–A7), configurable via the ADCCTL1 and ADCMCTL0 registers. These channels are accessible on P1.0–P1.3, P9.4–P9.7, and support internal reference (1.5 V/2.0 V/2.5 V) and sample-and-hold - sufficient for simultaneous voltage, current, and temperature monitoring in utility meter designs.
What low-power mode current does the MSP430FR6972IRGCT achieve with RTC active?
In LPM3.5 mode - where the real-time clock (RTC_C) remains active while the CPU and most peripherals are powered down - the MSP430FR6972IRGCT draws 0.35 µA typical current at 3 V and 25°C. This ultra-low current enables decade-scale battery operation in applications such as heat cost allocators and gas meters, provided a 32-kHz crystal is connected to PJ.4/PJ.5.
MSP430FR6972IRGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- 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:
- 51
- Program Memory Size:
- 64KB (64K 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 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR6972IRGCT FAQ
1.How can I place an order for MSP430FR6972IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6972IRGCT 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 MSP430FR6972IRGCT reliable?
The price and inventory of MSP430FR6972IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6972IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430FR6972IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6972IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6972IRGCT?
MSP430FR6972IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6972IRGCT 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 MSP430FR6972IRGCT?
For technical support, including MSP430FR6972IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6972IRGCT requirements.
6.How does Aetrix verify that MSP430FR6972IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430FR6972IRGCT 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 MSP430FR6972IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430FR6972IRGCT?
All MSP430FR6972IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6972IRGCT, 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 MSP430FR6972IRGCT part is unused and in its original packaging.
Return procedure for MSP430FR6972IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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