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Texas Instruments MSP430FR59221IRGCR
- Part No.:
- MSP430FR59221IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR59221IRGCR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,741
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Product details
Overview
MSP430FR59221IRGCR from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller featuring 64KB nonvolatile FRAM, 2KB RAM, 12-bit ADC with 8 external channels, AES-256 encryption coprocessor, and RTC with calendar mode. It operates from 1.8 V to 3.6 V and supports LPM3.5 standby at 0.35 µA - optimized for battery-powered sensor nodes and metering applications requiring long-term data retention without write endurance limits.
For engineers reviewing the MSP430FR59221IRGCR datasheet, MSP430FR59221IRGCR pinout, MSP430FR59221IRGCR application, or MSP430FR59221IRGCR equivalent, key selection criteria include FRAM write speed (125 ns/word), integrated capacitive touch I/O, dual eUSCI modules supporting UART/IrDA/SPI/I²C, and absence of HFXT oscillator (LFXT-only clock system).
Technical Context
The MSP430FR59221IRGCR implements the MSP430xV2 CPU core with unified FRAM memory space enabling seamless code/data/storage access. Its clock system relies exclusively on LFXT (32-kHz crystal) and internal DCO/VLO - no HFXT support - limiting high-frequency operation but enhancing low-power stability in energy-harvested systems.
Peripherals include three 16-bit Timer_A instances (TA0–TA2), one 16-bit Timer_B (TB0), dual eUSCI_A (UART/IrDA/SPI) and eUSCI_B (I²C/SPI) modules, 32-bit hardware CRC, and a 32-bit multiplier. The device lacks HFXIN/HFOUT pins and AES-256 is fully implemented - distinguishing it from MSP430FR587x variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16-MHz operation with unified FRAM address space |
| Nonvolatile Memory | 64KB FRAM with 10¹⁵ write-cycle endurance and 125 ns/word write speed |
| 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 |
| Low-Power Modes | LPM3.5 (RTC active): 0.35 µA typical; LPM4.5 (shutdown): 0.04 µA typical |
| Crypto Engine | Hardware AES-256 encryption/decryption coprocessor with true random number seed |
| Real-Time Clock | Calendar mode with alarm, clocked by 32-kHz LFXT crystal (3.7-pF load) |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm body size, thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 | ADC input / RTCCLK / DMA trigger | Analog input A0/C0, real-time clock input source, and DMA event enable |
| P2.2 | UCA0CLK / TB0.4 / RTCCLK | UART clock input, Timer_B capture/compare channel, and secondary RTC clock source |
| PJ.4 / PJ.5 | LFXIN / LFXOUT | Dedicated 32-kHz crystal connections - no HFXT pins present |
| TEST / RST/NMI | SBW debug interface / reset | Two-pin Spy-Bi-Wire programming and debugging; active-low reset with NMI capability |
| DVCC1–DVCC3 / DVSS1–DVSS3 | Digital power supply / ground | Three independent digital supply domains for noise isolation and layout flexibility |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | Enables instant nonvolatile writes without erase cycles - critical for frequent data logging in energy-harvested sensors |
| Capacitive Touch I/O | All GPIO pins support CSD (capacitive sensing) without external components - reduces BOM cost in wearable interfaces |
| eUSCI Dual-Protocol Peripherals | Independent eUSCI_A0/A1 (UART/IrDA/SPI) and eUSCI_B0/B1 (I²C/SPI) allow concurrent wired communication stacks |
| Ultra-Low-Power RTC | 0.35 µA LPM3.5 current enables decade-scale battery life in calendar-aware applications like utility metering |
| Memory Protection Unit (MPU) | Lockable FRAM segments prevent unauthorized firmware access - essential for secure firmware updates in IoT endpoints |
Applications
| Smart Utility Metering | Energy-Harvested Sensor Node |
|---|---|
Use Scenario: Gas/water/electricity meter with tamper detection, pulse counting, and daily consumption logging. IC Role / Device Role / Timing Role: Primary controller managing metrology ADC, RTC calendar, FRAM-based log storage, and secure firmware updates. Use Value: 64KB FRAM retains 10+ years of hourly logs without wear-out; AES-256 secures firmware against cloning attacks. |
Use Scenario: Wireless environmental sensor powered by solar cell or thermoelectric generator. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor conditioning, ultra-low-power sleep/wake cycles, and RF transmission timing. Use Value: 0.04 µA LPM4.5 shutdown extends operational life between harvest events; FRAM survives voltage brownouts during intermittent power. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Chest strap ECG monitor with motion compensation, Bluetooth LE interface, and battery status tracking. IC Role / Device Role / Timing Role: Front-end signal processor handling analog front-end, capacitive touch buttons, and real-time heart-rate calculation. Use Value: All I/O pins support capacitive touch - eliminates mechanical switches; 12-bit ADC resolves microvolt-level ECG signals. |
Use Scenario: Ruggedized temperature/humidity logger deployed in HVAC ducts or manufacturing floors. IC Role / Device Role / Timing Role: Standalone data acquisition unit with timestamped sensor reads, error-corrected storage, and periodic USB/UART dump. Use Value: CRC32 hardware engine validates FRAM integrity after 10⁶+ write cycles; LPM3.5 RTC maintains accurate timestamps across power loss. |
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 |
|---|---|---|---|
| MSP430FR5922IRGCR | No AES-256 coprocessor; identical FRAM, ADC, timers, and pinout | Unsecured firmware updates; suitable for cost-sensitive, non-regulated deployments | Select when cryptographic acceleration is unnecessary and BOM cost reduction is prioritized |
| MSP430FR59721IRGCR | Adds HFXT support (HFXIN/HFXOUT pins), higher max frequency (16 MHz vs. 8 MHz in FR592x), and additional Timer_A instance (TA3) | Supports higher-bandwidth communication (e.g., USB bridge, faster SPI), wider clock tolerance in noisy environments | Select when system requires >8 MHz operation or external high-frequency crystal stability |
Compared with MSP430FR59221IRGCR, the MSP430FR5922IRGCR omits security features but matches all power/performance specs, while MSP430FR59721IRGCR adds HFXT and higher-speed peripherals at the cost of increased active current and larger footprint compatibility.
Availability
MSP430FR59221IRGCR is available at Aetrix Electronics and suitable for smart metering, energy-harvested sensor nodes, and wearable electronics requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR59221IRGCR 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 and embedded processing solutions, with over 50 years of innovation in low-power microcontrollers and precision analog ICs.
The MSP430FR59xx family targets ultra-low-power sensing and measurement applications, combining FRAM nonvolatility with sub-µA real-time operation - designed specifically for battery-constrained, long-life IoT endpoints.
FAQ
What is the maximum operating frequency of the MSP430FR59221IRGCR?
The MSP430FR59221IRGCR supports up to 16 MHz CPU operation using its factory-trimmed DCO, but its clock system excludes HFXT - limiting sustained high-frequency use to DCO-based sources. For crystal-referenced timing, only the 32-kHz LFXT is supported, making it ideal for applications where precision low-frequency timing outweighs high-speed processing needs.
Does the MSP430FR59221IRGCR support hardware AES encryption?
Yes, the MSP430FR59221IRGCR integrates a dedicated 128/256-bit AES security coprocessor, enabling fast, low-power encryption and decryption of firmware images or sensor payloads. This feature is confirmed in the device comparison table and functional block diagram - and distinguishes it from the non-AES MSP430FR5922IRGCR variant.
What package type and pin count does the MSP430FR59221IRGCR use?
The MSP430FR59221IRGCR uses a 64-pin VQFN (RGC) package measuring 9 mm × 9 mm with an exposed thermal pad. Pin configuration matches the MSP430FR592x(1) family - including dedicated LFXIN/LFXOUT pins and absence of HFXIN/HFXOUT - as verified in Figures 4-2 and Table 4-1 of the SLASE66C datasheet.
Can the MSP430FR59221IRGCR operate from a 1.8-V supply?
Yes, the MSP430FR59221IRGCR operates across a 1.8-V to 3.6-V supply range. Minimum voltage is constrained by SVS thresholds, and all specifications - including active current (100 µA/MHz) and LPM3.5 (0.35 µA) - are validated down to 1.8 V per Section 5.3 of the datasheet.
How many I²C interfaces does the MSP430FR59221IRGCR support?
The MSP430FR59221IRGCR supports two independent I²C interfaces via eUSCI_B0 and eUSCI_B1, each capable of multi-slave addressing and SPI fallback. This is confirmed in Section 1.1 Features and Table 3-2, enabling simultaneous communication with multiple sensors or displays without software bit-banging overhead.
MSP430FR59221IRGCR 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:
MSP430FR59221IRGCR FAQ
1.How can I place an order for MSP430FR59221IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR59221IRGCR 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 MSP430FR59221IRGCR reliable?
The price and inventory of MSP430FR59221IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR59221IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430FR59221IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR59221IRGCR transactions.
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4.How is shipping managed for MSP430FR59221IRGCR?
MSP430FR59221IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR59221IRGCR 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 MSP430FR59221IRGCR?
For technical support, including MSP430FR59221IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR59221IRGCR requirements.
6.How does Aetrix verify that MSP430FR59221IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430FR59221IRGCR 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 MSP430FR59221IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430FR59221IRGCR?
All MSP430FR59221IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR59221IRGCR, 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 MSP430FR59221IRGCR part is unused and in its original packaging.
Return procedure for MSP430FR59221IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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