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Texas Instruments MSP430FR69721IPMR
- Part No.:
- MSP430FR69721IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FR69721IPMR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,040
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Product details
Overview
MSP430FR69721IPMR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 64KB nonvolatile memory, 2KB RAM, integrated 12-bit ADC, LCD driver (112 segments), AES-256 encryption, and dual eUSCI modules supporting UART, I²C, and SPI. It operates from 1.8 V to 3.6 V and targets battery-powered utility meters and sensor nodes.
For engineers reviewing the MSP430FR69721IPMR datasheet, MSP430FR69721IPMR pinout, MSP430FR69721IPMR application, or MSP430FR69721IPMR equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), RTC-with-calendar in LPM3.5 (0.35 µA), capacitive touch I/O without external components, and support for I²C-based BSL programming.
Technical Context
The MSP430FR69721IPMR implements the CPUXV2 core with 16 general-purpose registers and executes instructions at up to 16 MHz. Its clock system integrates DCO (10 factory-trimmed frequencies), LFXT (32-kHz crystal), and HFXT (high-frequency crystal) sources, enabling precise timing control across low-power modes.
Peripherals include three 16-bit Timer_A instances (3/3/2 capture/compare registers), one 16-bit Timer_B (2/5 registers), 3-channel DMA, CRC16/CRC32 accelerators, and dual eUSCI_A (UART/IrDA/SPI) and eUSCI_B (I²C/SPI) modules - all accessible via multiplexed I/O pins on the 64-pin LQFP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation - enables deterministic real-time response in metering firmware. |
| FRAM Capacity | 64KB unified nonvolatile memory - eliminates write wear-out concerns and supports frequent logging without flash erase cycles. |
| Power Consumption (LPM3.5) | 0.35 µA typical with RTC active - extends battery life to >10 years in heat cost allocators using coin cells. |
| ADC Resolution | 12-bit SAR with internal reference and 8 external channels - supports precision analog sensing in gas/water meter front-ends. |
| LCD Driver | 112-segment static/2–4 mux driver with contrast control - drives standard utility meter displays without external bias circuitry. |
| AES Engine | 256-bit hardware encryption/decryption coprocessor - secures firmware updates and meter data transmission per DLMS/IEC 62056 standards. |
| eUSCI Interfaces | 2× eUSCI_A (UART/IrDA/SPI) + 2× eUSCI_B (I²C/SPI) - enables simultaneous HAN communication, PLC interface, and sensor bus connectivity. |
Pinout & Package
Package: LQFP-64 (10 mm × 10 mm), thermally enhanced with exposed pad (not electrically connected). Pin count and layout conform to JEDEC MO-153AC standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with capacitive touch, ADC inputs, timer I/O | Supports self-capacitive touch buttons and analog sensor acquisition on same pins - reduces BOM count in thermostats. |
| P2.0/P2.1 | BSL_TX/BSL_RX (UART BSL) | Enables field firmware updates via UART without JTAG - critical for sealed utility meter deployments. |
| P3.4–P3.7 | eUSCI_A1 (SPI master/slave) | Configurable as high-speed SPI interface to external metrology ICs or secure elements. |
| P6.3–P6.6 | COM0–COM3 (LCD common outputs) | Drives 4-backplane LCD segments directly - simplifies display subsystem design in portable medical devices. |
| PJ.4/PJ.5 | LFXIN/LFXOUT | Connects to 32.768-kHz crystal for RTC calendar accuracy ±20 ppm - meets IEC 62053-21 timekeeping requirements. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory with 125 ns write speed and 10¹⁵ endurance - enables reliable data logging at 1-second intervals for >30 years. |
| Real-Time Clock (RTC) | Calendar mode with alarm, powered in LPM3.5 at 0.35 µA - maintains accurate time during deep sleep in battery-operated thermostats. |
| Capacitive Touch I/O | All GPIO pins support CSD without external components - eliminates RC networks and reduces PCB area in handheld medical equipment. |
| Hardware AES-256 | Dedicated encryption engine with DMA-assisted throughput - secures DLMS/COSEM communications without CPU overhead in smart meters. |
| Ultra-Low-Power Modes | Active mode: ~100 µA/MHz; LPM4.5 shutdown: 0.04 µA - achieves multi-year operation on CR2032 batteries in portable sensors. |
Applications
| Heat Cost Allocators | Utility Meters |
|---|---|
Use Scenario: Compact, battery-powered units mounted on radiators measure temperature differentials and flow time to allocate heating costs. IC Role / Device Role / Timing Role: Main controller executing thermal integration algorithms, managing RTC-based billing periods, and driving segmented LCD. Use Value: FRAM enables tamper-proof hourly energy accumulation logs; LPM3.5 RTC sustains 10+ year battery life with no maintenance. | Use Scenario: Electricity/water/gas meters requiring secure, long-life, and metrology-grade data storage and communication. IC Role / Device Role / Timing Role: System-on-chip handling ADC sampling, pulse counting, AES-secured DLMS stack, and optical/IrDA/HAN interfaces. Use Value: Integrated AES-256 meets EN 13757-3 and DLMS security mandates; 64KB FRAM stores 36+ months of interval data without wear leveling. |
| Thermostats | Portable Medical Equipment |
Use Scenario: Wireless, battery-operated room thermostats with local display, temperature/humidity sensing, and BLE/Zigbee connectivity. IC Role / Device Role / Timing Role: Primary MCU managing sensor fusion, PID control, LCD refresh, and low-power wireless co-processor interface. Use Value: Capacitive touch I/O enables bezel-less UI; 12-bit ADC supports high-resolution NTC/RTD readings for ±0.1°C accuracy. | Use Scenario: Handheld glucose monitors, blood pressure cuffs, or pulse oximeters requiring clinical-grade analog front-end and secure data export. IC Role / Device Role / Timing Role: Data acquisition controller with calibrated ADC, LCD driver, USB/I²C peripheral interface, and encrypted storage. Use Value: Internal voltage reference and sample-and-hold ensure stable 12-bit conversions; FRAM guarantees audit-trail integrity for FDA-regulated usage logs. |
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 | Includes UART-based BSL; identical FRAM, ADC, LCD, and AES specs; same 64-pin LQFP package. | Preferred where UART-based field firmware updates are required instead of I²C. | Select when legacy UART bootloader infrastructure is already deployed in production test or field service systems. |
| MSP430FR69221IPM | Omits HFXT oscillator; lacks HFXIN/HFXOUT pins; retains LFXT, FRAM, AES, and LCD - but no high-frequency crystal support. | Suitable for cost-sensitive, lower-clock-rate applications where 16-MHz DCO suffices and RF/USB timing isn't needed. | Choose for simplified clock tree and reduced BOM in static sensor nodes where HFXT is unnecessary. |
Compared with MSP430FR6972IPMR and MSP430FR69221IPM, the MSP430FR69721IPMR uniquely combines I²C-based BSL, full HFXT capability, and identical FRAM/peripheral feature set - making it optimal for secure, field-upgradable utility meters requiring both precision timing and robust firmware update paths.
Availability
MSP430FR69721IPMR is available at Aetrix Electronics and suitable for utility metering, portable medical instrumentation, and industrial sensor management requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430FR69721IPMR 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 emphasis on power efficiency, reliability, and industrial-grade qualification.
The MSP430FRxx family targets ultra-low-power sensing and measurement applications - designed specifically for battery-operated meters, portable diagnostics, and environmental monitoring systems demanding decades-long operation and secure data integrity.
FAQ
What is the maximum operating frequency of the MSP430FR69721IPMR?
The MSP430FR69721IPMR supports a maximum CPU clock frequency of 16 MHz using the integrated DCO or external HFXT oscillator. This allows real-time execution of metrology algorithms and communication stacks while maintaining sub-100 µA/MHz active-mode efficiency - verified in TI's SLASE23E datasheet Section 5.13.
Does the MSP430FR69721IPMR support hardware-accelerated cryptographic operations?
Yes, the MSP430FR69721IPMR includes a dedicated 256-bit AES encryption/decryption coprocessor with DMA support. This enables secure DLMS/COSEM firmware updates and encrypted meter data transmission without burdening the CPU - a feature confirmed in the "Code Security and Encryption" section of the SLASE23E datasheet.
How many I/O pins on the MSP430FR69721IPMR support capacitive touch sensing?
All general-purpose I/O pins (P1–P9, PJ) on the MSP430FR69721IPMR support capacitive touch capability without external components. This includes 51 programmable I/Os in the 64-pin LQFP package - enabling full-touch UI implementation in thermostats or medical handhelds as documented in Section 1.1 of SLASE23E.
What low-power modes are available on the MSP430FR69721IPMR, and what is the lowest current draw?
The MSP430FR69721IPMR offers seven low-power modes including LPM3.5 (RTC active, 0.35 µA typical) and LPM4.5 (shutdown, 0.04 µA typical). These values are measured at 3 V and 25°C per SLASE23E Section 5.9 - enabling decade-long battery life in heat cost allocators and portable sensors.
Is the MSP430FR69721IPMR pin-compatible with other devices in the MSP430FR69xx family?
Yes, the MSP430FR69721IPMR shares identical 64-pin LQFP (PM) packaging, pinout, and signal mapping with MSP430FR6972IPMR, MSP430FR6970IPMR, and MSP430FR68721IPMR - as confirmed in TI's Device Comparison Tables (Section 3) and Pin Diagrams (Figure 4-2) of SLASE23E.
MSP430FR69721IPMR 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:
MSP430FR69721IPMR FAQ
1.How can I place an order for MSP430FR69721IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR69721IPMR 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 MSP430FR69721IPMR reliable?
The price and inventory of MSP430FR69721IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR69721IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FR69721IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR69721IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR69721IPMR?
MSP430FR69721IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR69721IPMR 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 MSP430FR69721IPMR?
For technical support, including MSP430FR69721IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR69721IPMR requirements.
6.How does Aetrix verify that MSP430FR69721IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FR69721IPMR 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 MSP430FR69721IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FR69721IPMR?
All MSP430FR69721IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR69721IPMR, 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 MSP430FR69721IPMR part is unused and in its original packaging.
Return procedure for MSP430FR69721IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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