Texas Instruments MSP430FR5969IRGZT
- Part No.:
- MSP430FR5969IRGZT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5969IRGZT.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 48VQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MSP430FR5969IRGZT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 64KB ferroelectric RAM (FRAM), 2KB SRAM, 16-channel 12-bit ADC, real-time clock (RTC) with calendar, and dual eUSCI modules supporting UART, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets energy-constrained applications such as smart metering and wearable sensor nodes.
For engineers reviewing the MSP430FR5969IRGZT datasheet, MSP430FR5969IRGZT pinout, MSP430FR5969IRGZT application, or MSP430FR5969IRGZT equivalent, key selection criteria include FRAM endurance (1015 write cycles), LPM3.5 current (0.25 µA typical), RTC calendar support, 48-pin VQFN package compatibility, and integrated AES-256 encryption for secure firmware updates.
Technical Context
The MSP430FR5969IRGZT implements the CPUXV2 core with 16 general-purpose registers and executes instructions at up to 16 MHz using a digitally controlled oscillator (DCO) or external HFXT/LFXT crystals. Its memory subsystem unifies program, data, and storage in 64KB FRAM-enabling instant nonvolatile writes without erase cycles and eliminating flash wear-out concerns.
Peripherals include five 16-bit timers (TA0–TA3, TB0), a 32-bit hardware multiplier, three-channel DMA, 16-channel analog comparator, and capacitive touch I/O on all pins. The RTC_B module requires LFXT (32 kHz crystal) and supports alarm/calendar functions in LPM3.5 mode at 0.25 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 with 16 registers; enables deterministic real-time control and low-code-footprint firmware. |
| FRAM Capacity | 64KB unified nonvolatile memory; supports byte-level writes, 125 ns/word speed, and 1015 endurance-ideal for frequent logging without wear leveling. |
| ADC Resolution | 12-bit SAR ADC with 16 external + 2 internal channels; includes internal reference and sample-and-hold for precision sensor interfacing. |
| Low-Power Mode LPM3.5 | 0.25 µA typical current with RTC active; enables calendar-based wake-up while preserving full register context and FRAM contents. |
| Clock Sources | DCO (10 factory-trimmed frequencies), VLO, LFXT (32 kHz crystal), HFXT (up to 24 MHz); supports dynamic clock gating and source switching. |
| Security Engine | AES-256 coprocessor with random number seed; accelerates encrypted communication and secure boot without CPU overhead. |
| I/O Count | 40 programmable digital I/O pins (48-pin RGZ package); all support capacitive touch sensing, edge-selectable LPM wake-up, and configurable pullup/pulldown. |
Pinout & Package
The MSP430FR5969IRGZT is housed in a 48-pin VQFN (RGZ) package measuring 7 mm × 7 mm with exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0/C0/VREF-/VeREF- | Multi-function I/O | Primary RTC calibration output; ADC channel A0 input; comparator C0; negative reference source/sink; DMA trigger source. |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | RTC clock input option; ADC channel A1; comparator output; positive reference source/sink; TA1 clock source. |
| PJ.4/LFXIN & PJ.5/LFXOUT | Crystal Oscillator Interface | Dedicated 32-kHz crystal connection for RTC_B operation; required for calendar functionality and LPM3.5 mode. |
| PJ.6/HFXIN & PJ.7/HFXOUT | Crystal Oscillator Interface | Supports high-frequency crystal (up to 24 MHz) for system clock; enables precise timing for UART baud rates and high-speed peripherals. |
| RST/NMI/SBWTDIO | Reset & Debug Port | Active-low reset with NMI capability; bidirectional Spy-Bi-Wire debug interface pin-no separate JTAG header needed. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory enabling instant, low-energy writes-eliminates flash erase delays and extends lifetime in data-logging applications. |
| Real-Time Clock (RTC_B) | Calendar-mode RTC with alarm and battery-backed operation in LPM3.5 (0.25 µA), synchronized to 32-kHz LFXT for time-stamped sensor events. |
| Capacitive Touch I/O | All 40 GPIO pins support touch sensing without external components-reduces BOM cost and PCB area in wearable interfaces. |
| eUSCI Peripherals | Dual eUSCI modules: eUSCI_A0/A1 support UART (with auto-baud detection) and SPI; eUSCI_B0 supports I²C (multi-address) and SPI-enables flexible sensor/communication stacking. |
| Ultra-Low-Power Modes | Seven LPMs including LPM4.5 (0.02 µA shutdown); allows rapid wake-up from any mode with full context retention-critical for intermittent sensing duty cycles. |
Applications
| Smart Utility Metering | Energy-Harvesting Sensor Node |
|---|---|
Use Scenario: Two-way communication and tamper-resistant energy measurement in residential electricity meters. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing secure DLMS/COSEM protocol stack, and maintaining accurate time via RTC_B calendar. Use Value: 64KB FRAM stores decades of hourly consumption logs without degradation; AES-256 secures firmware updates and tariff changes over PLC or RF links. | Use Scenario: Autonomous environmental monitoring using solar or thermal harvesters powering wireless sensors. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor conditioning, low-duty-cycle sampling, and BLE/Wi-SUN radio control with precise wake scheduling. Use Value: LPM3.5 at 0.25 µA enables multi-year battery life; FRAM retains configuration and last-read values across power loss during intermittent harvesting. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Compact wrist-worn device acquiring ECG, temperature, and motion data with onboard analysis. IC Role / Device Role / Timing Role: Signal acquisition hub with 12-bit ADC, capacitive touch UI, and real-time heart-rate calculation using hardware multiplier. Use Value: All-GPIO touch eliminates mechanical buttons; 2KB SRAM buffers raw waveform data before FRAM compression-minimizing active time. | Use Scenario: Ruggedized field logger capturing vibration, pressure, and humidity in oil/gas or manufacturing settings. IC Role / Device Role / Timing Role: Standalone data collector with timestamped triggers, CRC-16 integrity checks, and error-resilient FRAM storage. Use Value: 1015 FRAM write cycles withstand continuous 100 Hz sampling for >30 years; radiation resistance ensures reliability in high-EMI environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR59691IRGZT | Same FRAM/SRAM/ADC/timers; differs only in factory-programmed BSL-supports I²C instead of UART bootloader interface. | Requires I²C-based programming infrastructure; unsuitable where UART BSL is mandated for field updates. | Select when I²C host controller is available and UART lines are constrained; otherwise use MSP430FR5969IRGZT for universal serial programming. |
| MSP430FR5968IRGZT | 48KB FRAM (vs. 64KB), identical package, peripherals, and power specs; no functional or pinout differences beyond memory size. | Appropriate for cost-sensitive designs where 48KB FRAM suffices-e.g., simpler firmware with minimal logging depth. | Choose for reduced BOM cost when application firmware and data buffers fit within 48KB; retains full software compatibility and PCB layout. |
Compared with MSP430FR59691IRGZT and MSP430FR5968IRGZT, the MSP430FR5969IRGZT provides maximum FRAM capacity and UART-based BSL-making it optimal for secure, high-volume data logging systems requiring field-upgradable firmware over standard serial interfaces.
Availability
MSP430FR5969IRGZT is available at Aetrix Electronics and suitable for smart utility metering, energy-harvesting sensor nodes, and wearable electronics requiring stable component supply across long-lifecycle industrial programs.
Supply support for MSP430FR5969IRGZT 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 MSP430 ULP FRAM portfolio was designed to eliminate flash limitations in battery-powered IoT endpoints-delivering infinite write endurance, instant nonvolatile storage, and sub-µA sleep modes for multi-year deployments.
FAQ
What is the maximum operating frequency of the MSP430FR5969IRGZT?
The MSP430FR5969IRGZT supports a maximum system clock frequency of 16 MHz, achievable using the internally trimmed DCO or an external HFXT crystal up to 24 MHz. This enables real-time signal processing and high-speed peripheral operation while maintaining ultra-low-power efficiency across all active and low-power modes.
Does the MSP430FR5969IRGZT support real-time clock functionality with calendar mode?
Yes, the MSP430FR5969IRGZT integrates the RTC_B module, which supports full calendar mode (year/month/day/hour/minute/second) when paired with a 32-kHz LFXT crystal connected to PJ.4/LFXIN and PJ.5/LFXOUT. It operates in LPM3.5 at 0.25 µA typical, retaining timekeeping accuracy during ultra-low-power sleep.
How many I/O pins does the MSP430FR5969IRGZT have, and what special capabilities do they offer?
The MSP430FR5969IRGZT provides 40 programmable digital I/O pins in its 48-pin VQFN package. All pins support capacitive touch sensing without external components, edge-selectable wake-up from any low-power mode, and individually configurable pullup/pulldown resistors-enabling robust human-interface design in space-constrained wearables.
What security features are integrated into the MSP430FR5969IRGZT?
The MSP430FR5969IRGZT includes a dedicated AES-256 encryption/decryption coprocessor and a random number seed generator. These enable hardware-accelerated secure boot, encrypted firmware updates, and authenticated communication-critical for protecting intellectual property and preventing unauthorized device cloning in deployed systems.
Is the MSP430FR5969IRGZT pin-compatible with other devices in the MSP430FR59xx family?
Yes, the MSP430FR5969IRGZT shares identical pinout and package (48-pin VQFN, RGZ) with MSP430FR59691IRGZT, MSP430FR5968IRGZT, and MSP430FR5967IRGZT. This allows direct PCB reuse across variants-only firmware and BSL configuration differ, simplifying design scalability and inventory management.
MSP430FR5969IRGZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 40
- 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 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5969IRGZT FAQ
1.How can I place an order for MSP430FR5969IRGZT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5969IRGZT 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 MSP430FR5969IRGZT reliable?
The price and inventory of MSP430FR5969IRGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5969IRGZT is usually 5 days.
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MSP430FR5969IRGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5969IRGZT 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 MSP430FR5969IRGZT?
For technical support, including MSP430FR5969IRGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5969IRGZT requirements.
6.How does Aetrix verify that MSP430FR5969IRGZT is sourced from the original manufacturer or authorized distributors?
All MSP430FR5969IRGZT 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 MSP430FR5969IRGZT meets industry standards.
7.What is the process for return or replacement of MSP430FR5969IRGZT?
All MSP430FR5969IRGZT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5969IRGZT, 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 MSP430FR5969IRGZT part is unused and in its original packaging.
Return procedure for MSP430FR5969IRGZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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