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Texas Instruments MSP430FR6972IPMR
- Part No.:
- MSP430FR6972IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR6972IPMR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:934
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Product details
Overview
MSP430FR6972IPMR 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 portable sensing systems.
For engineers reviewing the MSP430FR6972IPMR datasheet, MSP430FR6972IPMR pinout, MSP430FR6972IPMR application, or MSP430FR6972IPMR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC calendar mode in LPM3.5 (0.35 µA), AES-256 encryption coprocessor, and 64-pin LQFP package with 51 GPIOs including capacitive touch support.
Technical Context
The MSP430FR6972IPMR implements the CPUXV2 16-bit RISC core with up to 16-MHz operation, paired with a flexible clock system including DCO, LFXT (32 kHz crystal), and HFXT (up to 24 MHz). Its memory subsystem unifies program, data, and storage in 64KB FRAM-enabling instant writes without erase cycles and eliminating flash wear-out concerns.
Digital peripherals include three 16-bit timers (TA0–TA2, TB0) with capture/compare, 32-bit hardware multiplier, three-channel DMA, CRC16/CRC32 engines, and two eUSCI_A (UART/IrDA/SPI) and two eUSCI_B (I²C/SPI) modules. Analog functions integrate an 8-channel comparator, 12-bit ADC with internal reference, and LCD_C controller supporting static and 2–4 mux configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC, up to 16-MHz operation - enables deterministic real-time control with low code footprint |
| Nonvolatile Memory | 64KB FRAM - supports 10¹⁵ write cycles, 125 ns/word write speed, unified memory space for code/data/storage |
| Power Modes | LPM3.5 RTC mode draws 0.35 µA typical - extends battery life in always-on timekeeping applications |
| Analog Peripherals | 12-bit ADC with 8 external inputs + internal reference; 8-channel analog comparator - enables sensor signal acquisition without external signal conditioning |
| Communication | eUSCI_A0/A1 (UART/IrDA/SPI) + eUSCI_B0/B1 (I²C/SPI) - provides dual-protocol serial connectivity for sensor networks and display interfaces |
| Security | Hardware AES-256 coprocessor + lockable memory segments - enables secure firmware updates and IP protection in metering endpoints |
| Package | LQFP-64 (10 mm × 10 mm) - standard surface-mount footprint compatible with automated PCB assembly |
Pinout & Package
LQFP-64 package (10 mm × 10 mm) with exposed thermal pad (not electrically connected); 51 general-purpose I/O pins, 3 power supply pins (DVCC/DVSS/AVCC/AVSS), and dedicated crystal (LFXIN/LFXOUT) and debug (SBWTCK/SBWTDIO) terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, ADC, timer, and eUSCI functions | Supports wake-up from LPM on edge, analog input (A0–A3), and peripheral multiplexing - reduces external component count |
| P2.0–P2.3 | UART BSL interface (BSL_TX/BSL_RX), RTCCLK, DMAE0, TB0 outputs | Enables factory programming and field firmware updates via UART; RTCCLK routing allows precise timebase distribution |
| P3.0–P3.7 | eUSCI_B1 (I²C/SPI), TA1, TB0, and DMA channels | Configurable as I²C master/slave or SPI peripheral - simplifies communication with sensors and displays |
| P6.0–P6.6 | LCD segment drivers (COM0–COM3), R23/R13/LCDCAP | Drives up to 112-segment LCD directly - eliminates need for external LCD controller in metering UIs |
| PJ.4/PJ.5 | LFXIN/LFXOUT | Connects to 32-kHz crystal for RTC accuracy ±20 ppm - critical for billing-grade timekeeping in utility meters |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory with 10¹⁵ write endurance and 125 ns write speed - eliminates flash erase delays and wear leveling overhead |
| Ultra-low-power RTC | 0.35 µA typical in LPM3.5 with calendar and alarm - enables decade-long battery life in heat cost allocators |
| Capacitive Touch I/O | All GPIOs support CSD without external components - reduces BOM cost and board space in thermostats and portable medical devices |
| Hardware AES-256 | Dedicated encryption/decryption coprocessor - accelerates secure boot and encrypted data logging in smart meters |
| Integrated LCD Driver | 112-segment support with contrast control and static/2–4 mux modes - drives custom meter displays without external drivers |
Applications
| Heat Cost Allocators | Utility Meters |
|---|---|
Use Scenario: Battery-powered thermal energy measurement in apartment heating systems with monthly data logging. IC Role / Device Role / Timing Role: Primary MCU managing temperature sensing, RTC-based billing intervals, and RF transmission of consumption data. Use Value: FRAM enables reliable daily log writes over 10+ years; LPM3.5 RTC current (0.35 µA) extends CR2032 battery life beyond 10 years. | Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and secure data upload via PLC or RF. IC Role / Device Role / Timing Role: System controller handling metrology ADC sampling, AES-encrypted data storage, and real-time tariff switching. Use Value: Hardware AES-256 ensures compliance with DLMS/COSEM security requirements; 64KB FRAM stores 12+ months of encrypted consumption history. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Wireless HVAC controller with ambient temperature/humidity sensing, LCD display, and BLE interface. IC Role / Device Role / Timing Role: Main processor executing PID control loop, driving 112-segment LCD, and managing capacitive touch buttons. Use Value: All-GPIO capacitive touch eliminates overlay sensors; integrated LCD_C reduces component count and power vs. external controllers. | Use Scenario: Handheld blood glucose monitor with strip sensing, OLED/LCD display, and USB charging. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring analog strip signals, performing calibration math, and managing low-power display refresh. Use Value: 12-bit ADC with internal reference achieves <1% measurement accuracy; FRAM retains calibration coefficients across power cycles without backup battery. |
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 |
|---|---|---|---|
| MSP430FR6972IRGC | VQFN-64 (9 mm × 9 mm) package; identical FRAM, peripherals, and electrical specs | Better thermal performance and smaller footprint; requires different PCB layout and reflow profile | Select for space-constrained designs needing improved thermal dissipation |
| MSP430FR6922IPM | 56-pin LQFP; no HFXT support; 116-segment LCD; same FRAM/RAM but lacks AES-256 | Optimized for LCD-centric applications without cryptographic requirements; lower pin count reduces routing complexity | Select when AES is unnecessary and higher segment count is required for richer UIs |
Compared with MSP430FR6972IRGC, the MSP430FR6972IPMR offers identical functionality in a larger LQFP package suited for prototyping and manual assembly; compared with MSP430FR6922IPM, it adds HFXT capability and hardware AES-256 - essential for secure, high-accuracy timing in utility metering.
Availability
MSP430FR6972IPMR is available at Aetrix Electronics and suitable for utility metering, portable medical instrumentation, and industrial sensor management requiring stable component supply and long-term lifecycle support.
Supply support for MSP430FR6972IPMR 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 wireless technologies for industrial, automotive, and consumer applications.
The MSP430FR69xx family is designed for ultra-low-power sensing and metering applications, combining FRAM nonvolatility, integrated peripherals, and sub-µA real-time clock operation to enable multi-year battery life in endpoint devices.
FAQ
What is the maximum operating frequency of the MSP430FR6972IPMR?
The MSP430FR6972IPMR supports a maximum CPU clock frequency of 16 MHz using the integrated DCO or external HFXT oscillator. This enables real-time signal processing and fast FRAM writes while maintaining ultra-low active-mode current (≈100 µA/MHz). The device also supports lower-frequency operation down to DC for extended low-power modes.
Does the MSP430FR6972IPMR include hardware encryption capabilities?
Yes, the MSP430FR6972IPMR integrates a dedicated 128/256-bit AES security coprocessor. This hardware accelerator enables fast, low-power encryption and decryption of firmware images and metering data - a requirement for DLMS/COSEM-compliant utility meters. The MSP430FR6972IPMR uses this module to secure boot, data logging, and remote firmware updates without burdening the CPU.
How many I/O pins does the MSP430FR6972IPMR provide, and what special functions do they support?
The MSP430FR6972IPMR provides 51 general-purpose I/O pins in its 64-pin LQFP package. All pins support capacitive touch sensing without external components, edge-selectable wake-up from low-power modes, and programmable pullup/pulldown resistors. They are multiplexed with peripherals including ADC inputs, timer capture/compare, eUSCI serial interfaces, and LCD segment outputs - enabling highly integrated system designs.
What LCD configuration options does the MSP430FR6972IPMR support?
The MSP430FR6972IPMR integrates the LCD_C module supporting up to 112 segments in static, 2-mux, 3-mux, or 4-mux configurations. It includes dedicated COM0–COM3 pins and segment drive capability on multiple port pins (e.g., P6.x, P3.x). Contrast control is implemented via internal resistor ladder or external capacitor, and the module operates independently in LPM3 to maintain display visibility during low-power operation.
What crystal frequencies are supported by the MSP430FR6972IPMR for real-time clock operation?
The MSP430FR6972IPMR supports a 32.768-kHz crystal connected to PJ.4 (LFXIN) and PJ.5 (LFXOUT) for precision RTC operation with calendar and alarm functions. This low-frequency crystal enables the device to achieve 0.35 µA typical current draw in LPM3.5 mode - critical for multi-year battery life in metering and sensing applications where time accuracy is essential.
MSP430FR6972IPMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- 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:
MSP430FR6972IPMR FAQ
1.How can I place an order for MSP430FR6972IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR6972IPMR 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 MSP430FR6972IPMR reliable?
The price and inventory of MSP430FR6972IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR6972IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR6972IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR6972IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR6972IPMR?
MSP430FR6972IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR6972IPMR 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 MSP430FR6972IPMR?
For technical support, including MSP430FR6972IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR6972IPMR requirements.
6.How does Aetrix verify that MSP430FR6972IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR6972IPMR 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 MSP430FR6972IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR6972IPMR?
All MSP430FR6972IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR6972IPMR, 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 MSP430FR6972IPMR part is unused and in its original packaging.
Return procedure for MSP430FR6972IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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