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Texas Instruments MSP430FR5922IRGCR
- Part No.:
- MSP430FR5922IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5922IRGCR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,533
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Product details
Overview
MSP430FR5922IRGCR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller featuring 64KB nonvolatile FRAM, 2KB RAM, 12-bit ADC with 8 external channels, RTC with calendar/alarm, and dual eUSCI modules (UART/IrDA/SPI + I²C/SPI). It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and metering systems requiring long-term data retention without write endurance limits.
For engineers reviewing the MSP430FR5922IRGCR datasheet, MSP430FR5922IRGCR pinout, MSP430FR5922IRGCR application, or MSP430FR5922IRGCR equivalent, key selection criteria include its LPM3.5 RTC current (0.35 µA), FRAM write speed (125 ns/word), AES256 encryption coprocessor, capacitive touch I/O support, and absence of HFXT oscillator-making it distinct from MSP430FR597x variants.
Technical Context
The MSP430FR5922IRGCR implements the MSP430 CPUXV2 core with seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.04 µA). Its clock system integrates DCO, VLO, and LFXT only-no HFXT-limiting max system frequency to 16 MHz via DCO while supporting precise 32-kHz real-time clocking via external crystal.
Peripherals include three 16-bit Timer_A modules (TA0–TA2), one 16-bit Timer_B (TB0), 32-bit hardware multiplier, three-channel DMA, CRC16/CRC32 engines, and dual eUSCI_A/B modules. The device supports UART BSL and includes IP-encapsulated memory segments for secure firmware storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 RISC core with 16 registers; enables deterministic timing and compact code for embedded control. |
| FRAM Capacity | 64 KB unified nonvolatile memory; eliminates flash erase cycles, supports 10¹⁵ write endurance, enables true EEPROM-like operation. |
| ADC Resolution | 12-bit SAR ADC with internal reference and sample-and-hold; supports up to 8 external analog inputs for precision sensor interfacing. |
| RTC Power | 0.35 µA typical in LPM3.5 mode; enables decade-scale battery life in always-on timekeeping applications. |
| Low-Power Modes | LPM0–LPM4.5 with wake-up on port edge or peripheral event; LPM4.5 draws only 0.04 µA for ultra-long shutdown periods. |
| Crypto Engine | AES256 security coprocessor; accelerates encryption/decryption for secure firmware updates and data-at-rest protection. |
| Capacitive Touch | All I/O pins support CTSIO without external components; enables robust, low-cost human interface design in wearables and meters. |
Pinout & Package
VQFN-64 package (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad recommended to be connected to DVSS. Pin count and signal mapping match the MSP430FR592x family's 64-pin PM/RGC footprint, enabling layout reuse across variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | General-purpose I/O with analog comparator/ADC inputs | Support capacitive touch, analog sensing, and timer capture/compare; P1.0/P1.1 also serve as VREF+/VREF−. |
| P2.0–P2.3 | eUSCI_A0 UART/SPI interface + RTCCLK | P2.0/P2.1 used for UART BSL; P2.2 provides RTC clock output; critical for bootloader and time-synchronized communication. |
| P3.0–P3.7 | eUSCI_B1 I²C/SPI + Timer_A3 signals | Enable multi-drop sensor networks (I²C) or high-speed SPI peripherals; TA3 supports internal PWM generation only. |
| P6.4–P6.6 | Timer_B0 capture/compare outputs | Drive PWM-controlled actuators or LED dimming; TB0.0–TB0.2 support complementary outputs with dead-time insertion. |
| PJ.4/PJ.5 | LFXT crystal connections | Interface 32.768-kHz tuning-fork crystal for RTC accuracy; no HFXT support-limits high-frequency clock sources to DCO/VLO. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64 KB unified memory space with 125 ns write speed and infinite write endurance-enables reliable logging without wear leveling. |
| Ultra-Low-Power RTC | 0.35 µA operation in LPM3.5 with calendar and alarm functions-supports decades of battery life in energy-harvested nodes. |
| AES256 Security Coprocessor | Dedicated hardware engine for encryption/decryption-offloads CPU, ensures constant-time execution, and protects firmware keys. |
| Capacitive Touch I/O | All GPIO pins support CTSIO without external RC networks-reduces BOM cost and PCB area for touch interfaces. |
| Three-Channel DMA | Enables background data movement between peripherals and memory-reduces CPU load during ADC sampling or UART transfers. |
Applications
| Smart Metering | Energy-Harvested Sensor Node |
|---|---|
Use Scenario: Gas/water/electricity meter with tamper detection, pulse counting, and secure data upload. IC Role / Device Role / Timing Role: Main controller handling metrology ADC sampling, RTC-based billing intervals, and encrypted wireless transmission. Use Value: FRAM retains cumulative usage data across power loss; AES256 secures firmware updates; LPM3.5 extends battery life beyond 10 years. |
Use Scenario: Wireless environmental sensor (temp/humidity/pressure) powered by solar cell or thermoelectric generator. IC Role / Device Role / Timing Role: System-on-chip managing energy harvesting regulation, sensor polling, and duty-cycled RF transmission. Use Value: 0.04 µA LPM4.5 shutdown minimizes quiescent drain; FRAM stores calibration coefficients without degradation; CTSIO enables self-test buttons. |
| Wearable Health Monitor | Data Logger for Industrial Assets |
Use Scenario: Optical heart-rate monitor with motion compensation and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Front-end processor for photodiode signal conditioning, motion artifact filtering, and BLE packet assembly. Use Value: All-GPIO capacitive touch supports gesture UI; 12-bit ADC resolves small biopotential changes; FRAM buffers raw waveform data. |
Use Scenario: Vibration/temperature logger mounted on motors, pumps, or pipelines for predictive maintenance. IC Role / Device Role / Timing Role: Autonomous data acquisition unit with timestamped sensor reads, local analytics, and periodic cloud sync. Use Value: RTC calendar ensures traceable timestamps; 64 KB FRAM stores months of high-resolution logs; AES256 encrypts sensitive operational data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5972IRGC | Includes HFXT oscillator and higher I/O count (51 vs 46); same FRAM/RAM, AES256, and peripheral set. | Required where 4–24 MHz crystal-referenced timing is needed for USB, audio, or high-speed comms. | Select MSP430FR5972IRGC when HFXT support is mandatory; otherwise MSP430FR5922IRGCR offers lower cost and identical ultra-low-power performance. |
| MSP430FR5872IRGC | Same package and pinout but lacks AES256 engine and RTC calendar; shares FRAM, ADC, and low-power modes. | Suitable for cost-sensitive, non-secure applications like basic sensor readout without firmware encryption or time-stamped logging. | Choose MSP430FR5872IRGC only if AES256 and full RTC calendar are unnecessary-MSP430FR5922IRGCR adds security and timekeeping at minimal BOM impact. |
Compared with MSP430FR5972IRGC, the MSP430FR5922IRGCR trades HFXT capability for optimized RTC power and reduced system complexity; versus MSP430FR5872IRGC, it adds essential security and timekeeping features without increasing supply current in active or standby modes.
Availability
MSP430FR5922IRGCR is available at Aetrix Electronics and suitable for smart metering, energy-harvested sensor nodes, and wearable electronics requiring stable component supply, long-term FRAM reliability, and certified low-power operation.
Supply support for MSP430FR5922IRGCR 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 FRAM microcontroller product line targets ultra-low-power sensing and measurement applications, combining ferroelectric memory with intelligent peripherals to extend battery life and simplify firmware design.
FAQ
What is the maximum operating frequency of the MSP430FR5922IRGCR?
The MSP430FR5922IRGCR supports up to 16 MHz system clock via its factory-trimmed DCO oscillator. It does not include an HFXT oscillator, so external crystals above 32 kHz (e.g., 1–24 MHz) cannot be used. The DCO provides stable, software-tunable frequencies ideal for low-power timing-critical tasks within the MSP430FR5922IRGCR's voltage range (1.8–3.6 V).
Does the MSP430FR5922IRGCR support hardware AES encryption?
Yes, the MSP430FR5922IRGCR includes a dedicated 128/256-bit AES security coprocessor. This hardware engine performs encryption and decryption independently of the CPU, enabling secure firmware updates, protected data storage in FRAM, and authenticated communication-all while maintaining ultra-low active-mode current consumption. The AES module is confirmed present in all MSP430FR592x(1) devices per TI's SLASE66C datasheet.
What package type and pin count does the MSP430FR5922IRGCR use?
The MSP430FR5922IRGCR uses a 64-pin VQFN package (RGC suffix) measuring 9 mm × 9 mm with 0.5 mm pitch and an exposed thermal pad. This matches the pinout of the 64-pin LQFP (PM) variant, allowing direct PCB footprint compatibility. TI recommends connecting the thermal pad to DVSS for optimal thermal performance and electrical stability.
Can the MSP430FR5922IRGCR drive capacitive touch buttons without external components?
Yes, every GPIO pin on the MSP430FR5922IRGCR supports capacitive touch sensing (CTSIO) natively, with no external resistors or capacitors required. This capability is implemented in hardware and supported by TI's CapTIvate™ software library. It enables robust, low-cost touch interfaces in wearables, meters, and industrial HMI-fully compatible with the MSP430FR5922IRGCR's FRAM and low-power architecture.
How does the MSP430FR5922IRGCR differ from the MSP430FR5972IRGC in terms of clocking?
The MSP430FR5922IRGCR omits the HFXT oscillator circuitry entirely, supporting only DCO, VLO, and LFXT (32.768 kHz) clock sources. In contrast, the MSP430FR5972IRGC includes HFXT, enabling direct connection to high-frequency crystals (e.g., 1–24 MHz) for applications requiring precise high-speed timing. This makes the MSP430FR5922IRGCR ideal for RTC-centric, ultra-low-power designs where HFXT is unnecessary.
MSP430FR5922IRGCR 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, 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:
MSP430FR5922IRGCR FAQ
1.How can I place an order for MSP430FR5922IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5922IRGCR 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 MSP430FR5922IRGCR reliable?
The price and inventory of MSP430FR5922IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5922IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430FR5922IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5922IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5922IRGCR?
MSP430FR5922IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5922IRGCR 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 MSP430FR5922IRGCR?
For technical support, including MSP430FR5922IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5922IRGCR requirements.
6.How does Aetrix verify that MSP430FR5922IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5922IRGCR 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 MSP430FR5922IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430FR5922IRGCR?
All MSP430FR5922IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5922IRGCR, 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 MSP430FR5922IRGCR part is unused and in its original packaging.
Return procedure for MSP430FR5922IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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