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Texas Instruments MSP430FR59471IRHAT
- Part No.:
- MSP430FR59471IRHAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR59471IRHAT.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:278
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Product details
Overview
MSP430FR59471IRHAT from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 32KB nonvolatile memory, 1KB RAM, and integrated RTC clocked by a 3.7-pF crystal. It features a 12-bit ADC with up to 14 external analog inputs, five 16-bit timers, AES-256 encryption, and eUSCI modules supporting UART and I²C-designed for battery-powered sensor nodes and data loggers.
For engineers reviewing the MSP430FR59471IRHAT datasheet, MSP430FR59471IRHAT pinout, MSP430FR59471IRHAT application, or MSP430FR59471IRHAT equivalent, key selection criteria include LPM3.5 current (0.25 µA), FRAM endurance (10¹⁵ write cycles), I²C bootloader support, 40-pin VQFN package, and LFXT-only clock architecture without HFXT capability.
Technical Context
The MSP430FR59471IRHAT implements the CPUXV2 core with 16 registers and operates across seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.02 µA). Its FRAM memory replaces flash and SRAM, enabling unified program/data/storage space with 125 ns per-word writes and no erase-before-write overhead.
It integrates dual eUSCI peripherals: eUSCI_A0 supports UART with automatic baud-rate detection and SPI; eUSCI_B0 supports I²C with multiple slave addressing and SPI. The device lacks HFXT oscillator pins (PJ.6/PJ.7), confirming exclusive reliance on LFXT (PJ.4/PJ.5) for real-time clock operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16 MHz clock speed |
| FRAM Capacity | 32 KB nonvolatile memory with 10¹⁵ write-cycle endurance |
| RAM Size | 1 KB SRAM for volatile data storage and stack operations |
| ADC Resolution | 12-bit SAR ADC with internal reference, supporting up to 14 external analog inputs |
| LPM3.5 Current | 0.25 µA typical - enables calendar-based RTC operation during deep sleep |
| Package Type | VQFN-40 (RHA), 6 mm × 6 mm body size with exposed thermal pad |
| Clock Sources | DCO + LFXT only (PJ.4/LFXIN, PJ.5/LFXOUT); no HFXT support |
| Bootloader Interface | Hardware I²C BSL using P1.6 (BSLSDA) and P1.7 (BSLSCL) |
Pinout & Package
VQFN-40 (RHA) package with 6 mm × 6 mm body size and exposed thermal pad connected to DVSS. Pin numbering follows top-view layout with pin 1 at bottom-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PJ.4 / LFXIN | Low-frequency crystal input | Connects to 32-kHz crystal for RTC and ACLK generation; required for LPM3.5 operation |
| PJ.5 / LFXOUT | Low-frequency crystal output | Completes crystal oscillator circuit; must be used with PJ.4 for stable 32-kHz timing |
| P1.6 / UCB0SDA / BSLSDA | I²C data line / BSL interface | Primary SDA pin for hardware I²C bootloader; also serves as general-purpose I/O and timer function |
| P1.7 / UCB0SCL / BSLSCL | I²C clock line / BSL interface | Primary SCL pin for hardware I²C bootloader; dual-use with timer and comparator functions |
| RST/NMI/SBWTDIO | Reset / NMI / JTAG debug I/O | Active-low reset input; also supports Spy-Bi-Wire debugging and non-maskable interrupt |
| TEST/SBWTCK | JTAG test clock | Required for Spy-Bi-Wire programming and debugging; must be driven externally during debug session |
| DVCC / DVSS | Digital power supply / ground | Core digital domain supply (1.8–3.6 V); DVSS must be connected to system ground and thermal pad |
| AVCC / AVSS | Analog power supply / ground | Separate analog domain supply; requires local decoupling to ensure ADC and comparator accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32 KB unified memory enabling instant writes, zero latency erase, and radiation resistance for harsh environments |
| Real-Time Clock (RTC_B) | Calendar mode with alarm and calibration registers - powered in LPM3.5 using 32-kHz crystal for precise timekeeping |
| Capacitive Touch I/O | All GPIO pins support capacitive touch sensing without external components, reducing BOM cost and board area |
| AES-256 Encryption Engine | Hardware-accelerated security coprocessor enabling secure firmware updates and encrypted data logging |
| eUSCI_B0 I²C Bootloader | Dedicated hardware I²C interface (P1.6/P1.7) allows field firmware updates without UART or debugger hardware |
| Ultra-Low-Power Modes | LPM4.5 draws only 0.02 µA - ideal for long-term energy harvesting deployments where wake-up events are infrequent |
Applications
| Smart Utility Metering | Energy-Harvesting Sensor Node |
|---|---|
Use Scenario: Gas/water/electricity meter with tamper detection and hourly consumption logging. IC Role / Device Role / Timing Role: Primary controller managing metrology ADC sampling, FRAM-based secure data storage, and RTC-triggered transmission windows. Use Value: 10¹⁵ FRAM write cycles enable decades of daily logging without wear-out; LPM3.5 current (0.25 µA) extends battery life beyond 10 years. | Use Scenario: Wireless environmental sensor node powered by solar cell or thermoelectric generator. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor acquisition, AES-encrypted BLE packet preparation, and wake-up scheduling via RTC alarms. Use Value: Unified FRAM eliminates separate flash/RAM partitions, simplifying firmware design; I²C BSL enables remote firmware patching over existing sensor bus. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Compact wearable tracking heart rate, skin temperature, and motion via analog front-end. IC Role / Device Role / Timing Role: Central MCU handling capacitive touch UI, ADC-driven biometric sampling, and low-power Bluetooth LE interface coordination. Use Value: All-GPIO capacitive touch capability removes dedicated touch controller IC; FRAM's fast write speed captures burst sensor data without data loss. | Use Scenario: Ruggedized logger recording vibration, temperature, and humidity in factory equipment. IC Role / Device Role / Timing Role: Standalone data acquisition unit with timestamped FRAM storage, watchdog supervision, and periodic USB/UART dump. Use Value: Radiation-resistant FRAM ensures data integrity in EMI-heavy industrial settings; AES-256 protects sensitive operational logs from unauthorized access. |
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 |
|---|---|---|---|
| MSP430FR5947IRHAT | Identical FRAM (32KB), RAM (1KB), and peripheral set, but UART BSL instead of I²C BSL | Requires UART interface for firmware updates; unsuitable where only I²C bus is available | Select when UART-based field updates are preferred and I²C resources are constrained |
| MSP430FR5948IRHAT | 48 KB FRAM, same RAM (1KB), identical I²C BSL, and identical 40-pin RHA package | Higher memory capacity supports larger firmware or extended data buffers without changing PCB layout | Select when additional FRAM is needed for complex algorithms or longer local data retention |
Compared with MSP430FR5947IRHAT, the MSP430FR59471IRHAT provides I²C-based BSL for simplified integration into I²C-dominant sensor subsystems; compared with MSP430FR5948IRHAT, it trades 16 KB FRAM for lower cost and smaller code footprint while retaining identical power and interface behavior.
Availability
MSP430FR59471IRHAT is available at Aetrix Electronics and suitable for smart utility metering, energy-harvesting sensor nodes, and wearable health monitors requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR59471IRHAT 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 90 years of innovation in low-power design and mixed-signal integration.
The MSP430FR59xx family targets ultra-low-power sensing and measurement applications, combining FRAM nonvolatility with sub-µA real-time operation to extend battery life in energy-constrained systems.
FAQ
What is the maximum operating frequency of the MSP430FR59471IRHAT?
The MSP430FR59471IRHAT supports a maximum system clock frequency of 16 MHz using its factory-trimmed DCO oscillator. It does not include an HFXT oscillator, so high-frequency crystal operation is not supported - all timing above DCO limits relies on internal calibration or external clock injection.
Does the MSP430FR59471IRHAT support hardware AES encryption?
Yes, the MSP430FR59471IRHAT includes a dedicated 128-bit or 256-bit AES security coprocessor. This hardware engine accelerates encryption and decryption operations independently of the CPU, enabling secure firmware updates and protected data logging without compromising real-time performance of the MSP430FR59471IRHAT.
What package type and dimensions does the MSP430FR59471IRHAT use?
The MSP430FR59471IRHAT uses a 40-pin VQFN package (RHA variant) with a 6 mm × 6 mm body size and 0.4 mm pitch. The exposed thermal pad must be soldered to a grounded copper plane to ensure thermal stability and meet recommended operating conditions specified in the MSP430FR59471IRHAT datasheet.
Can the MSP430FR59471IRHAT operate without an external crystal?
Yes - the MSP430FR59471IRHAT can operate using its internal DCO or VLO oscillators for general-purpose timing. However, the RTC_B module requires the 32-kHz LFXT crystal (connected to PJ.4/PJ.5) to function in LPM3.5 mode; without it, calendar-based wake-up and precise timekeeping are unavailable.
Which communication interfaces does the MSP430FR59471IRHAT support for firmware updates?
The MSP430FR59471IRHAT supports hardware I²C-based bootloader (BSL) using P1.6 (BSLSDA) and P1.7 (BSLSCL). Unlike UART-based variants, it does not support UART BSL. This enables firmware updates over existing I²C sensor buses without requiring additional UART lines or level shifters.
MSP430FR59471IRHAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-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:
- 33
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 14x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR59471IRHAT FAQ
1.How can I place an order for MSP430FR59471IRHAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR59471IRHAT 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 MSP430FR59471IRHAT reliable?
The price and inventory of MSP430FR59471IRHAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR59471IRHAT is usually 5 days.
3.What payment methods are accepted for MSP430FR59471IRHAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR59471IRHAT transactions.
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4.How is shipping managed for MSP430FR59471IRHAT?
MSP430FR59471IRHAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR59471IRHAT 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 MSP430FR59471IRHAT?
For technical support, including MSP430FR59471IRHAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR59471IRHAT requirements.
6.How does Aetrix verify that MSP430FR59471IRHAT is sourced from the original manufacturer or authorized distributors?
All MSP430FR59471IRHAT 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 MSP430FR59471IRHAT meets industry standards.
7.What is the process for return or replacement of MSP430FR59471IRHAT?
All MSP430FR59471IRHAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR59471IRHAT, 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 MSP430FR59471IRHAT part is unused and in its original packaging.
Return procedure for MSP430FR59471IRHAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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