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Texas Instruments MSP430FR58471IRHAT
- Part No.:
- MSP430FR58471IRHAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR58471IRHAT.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
MSP430FR58471IRHAT from Texas Instruments is an ultra-low-power 16-bit FRAM microcontroller with 32KB nonvolatile memory, 1KB RAM, 14-channel 12-bit ADC, RTC with calendar/alarm, and I²C-capable eUSCI_B0 interface. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes requiring long-term data retention without flash wear-out.
For engineers reviewing the MSP430FR58471IRHAT datasheet, MSP430FR58471IRHAT pinout, MSP430FR58471IRHAT application, or MSP430FR58471IRHAT equivalent, key selection criteria include its LFXT-only clock architecture (no HFXT), 40-pin VQFN RHA package, I²C BSL support on P1.6/P1.7, real-time clock operation at 0.25 µA in LPM3.5, and capacitive touch I/O on all pins without external components.
Technical Context
The MSP430FR58471IRHAT implements the ULP CPUXV2 core with 16 registers and integrates a 32-bit hardware multiplier, 3-channel DMA, and a 16-bit CRC module. Its clock system relies exclusively on the low-frequency crystal oscillator (LFXT) - LFXIN/LFXOUT pins are functional, while HFXIN/HFXOUT are not present in this variant.
Peripherals include five 16-bit timers (TA0–TA3, TB0), RTC_B with calendar and alarm, 16-channel analog comparator (Comp_E), and dual eUSCI modules: eUSCI_A0 supports UART/IrDA/SPI, while eUSCI_B0 supports I²C (multi-address) and SPI - matching the "I2C" designation in Table 3-1 for MSP430FR58471.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2, up to 16 MHz clock speed - enables deterministic real-time control with low code footprint |
| FRAM Size | 32 KB unified nonvolatile memory - eliminates erase cycles, supports 10¹⁵ write endurance, ideal for frequent logging |
| RAM Size | 1 KB SRAM - sufficient for stack, variables, and small buffers in ultra-low-power sensor firmware |
| ADC Resolution | 12-bit SAR ADC with 14 external + 2 internal channels - supports precision analog sensing in metering and environmental monitoring |
| RTC Power | 0.25 µA typical in LPM3.5 mode - enables years of calendar/timekeeping on coin-cell batteries |
| Supply Range | 1.8 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and energy-harvesting sources |
| eUSCI_B0 Interface | I²C master/slave with multi-address support - allows direct connection to temperature, humidity, or EEPROM peripherals without level shifters |
Pinout & Package
This device uses a 40-pin VQFN package (RHA), 6 mm × 6 mm body size, 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 clock output, ADC channel A0 input, comparator C0, and negative reference source - critical for time-synchronized sampling |
| P1.6/TB0.3/UCB0SIMO/UCB0SDA/TA0.0 | I²C Data (SDA) | BSL I²C slave data line - enables factory and field firmware updates via I²C without UART hardware |
| P1.7/TB0.4/UCB0SOMI/UCB0SCL/TA1.0 | I²C Clock (SCL) | BSL I²C slave clock line - pairs with P1.6 for secure, low-pin-count bootloader access |
| PJ.4/LFXIN | LF Crystal Input | Connects to 32.768 kHz crystal for RTC accuracy - required for calendar mode and LPM3.5 operation |
| PJ.5/LFXOUT | LF Crystal Output | Completes crystal oscillator circuit - must be used with PJ.4 for stable 32-kHz timing |
| RST/NMI/SBWTDIO | Reset & Debug I/O | Active-low reset, non-maskable interrupt, and 2-wire Spy-Bi-Wire debug interface - enables in-circuit programming and debugging |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32 KB unified memory with 125 ns write speed and 10¹⁵ endurance - enables reliable data logging at sub-second intervals without wear leveling |
| Capacitive Touch I/O | All GPIO pins support CTSIO without external components - reduces BOM cost and PCB area for wearable UI or buttonless interfaces |
| Ultra-Low-Power Modes | LPM3.5 draws only 0.25 µA with RTC active - extends battery life to >10 years on CR2032 in periodic wake-up sensor applications |
| Hardware CRC16 | Dedicated 16-bit cyclic redundancy engine - offloads checksum computation from CPU, improving firmware robustness and power efficiency |
| I²C Bootloader (BSL) | Factory-programmed ROM-based I²C BSL on P1.6/P1.7 - enables secure firmware updates over existing I²C bus without dedicated programming header |
Applications
| Smart Utility Metering | Energy-Harvesting Sensor Node |
|---|---|
Use Scenario: Gas/water meter with hourly pulse counting and tamper detection. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, storing consumption logs in FRAM, and maintaining accurate time via RTC_B. Use Value: 32KB FRAM retains 5+ years of hourly data; 0.25 µA RTC current enables >15-year battery life with primary cell. | Use Scenario: Solar-powered soil moisture sensor transmitting data every 15 minutes via LoRaWAN. IC Role / Device Role / Timing Role: System-on-chip managing ADC sampling, energy harvesting regulation, RTC-triggered wake-up, and I²C communication with transceiver. Use Value: Unified FRAM simplifies firmware design; I²C BSL allows remote firmware patching without physical access. |
| Wearable Health Monitor | Industrial Asset Tracker |
Use Scenario: Wrist-worn pulse oximeter with capacitive touch controls and motion-triggered logging. IC Role / Device Role / Timing Role: Sensor fusion hub acquiring PPG/accelerometer data, running real-time filtering, and storing processed metrics in FRAM. Use Value: All-pin capacitive touch eliminates mechanical buttons; 1.8 V minimum supply supports direct Li-ion battery integration. | Use Scenario: GPS-enabled cold-chain logger monitoring temperature/humidity during transit. IC Role / Device Role / Timing Role: Data acquisition controller reading sensors, timestamping readings via RTC, and buffering to FRAM before wireless upload. Use Value: 10¹⁵ FRAM write cycles ensure integrity across 100,000+ measurement events; I²C interface connects directly to digital sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5847IRHAT | Identical FRAM/RAM/timer/ADC specs but features UART BSL (P2.0/P2.1) instead of I²C BSL | Requires UART interface for firmware updates; lacks native I²C slave capability on boot pins | Select when UART infrastructure already exists and I²C BSL is unnecessary |
| MSP430FR5969IRGZT | 64KB FRAM, 2KB RAM, HFXT+LFXT support, 48-pin RGZ package - adds high-frequency crystal option and larger memory | Suitable for more complex applications needing higher clock rates or extended data storage; incompatible pinout and package | Select when design requires >32KB program/data space or HFXT-based timing precision |
Compared with MSP430FR5847IRHAT and MSP430FR5969IRGZT, the MSP430FR58471IRHAT uniquely balances compact 40-pin packaging, I²C-native bootloader, and optimized power profile for cost-sensitive, space-constrained sensor endpoints where HFXT is unnecessary.
Availability
MSP430FR58471IRHAT is available at Aetrix Electronics and suitable for smart utility metering, energy-harvesting sensor nodes, and wearable health monitors requiring stable component supply, long-lifecycle assurance, and TI-qualified production traceability.
Supply support for MSP430FR58471IRHAT 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 company delivering analog and embedded processing solutions, with leadership in low-power microcontrollers and precision analog ICs.
The MSP430FR58xx family is designed for ultra-low-power sensing and measurement applications, leveraging FRAM to eliminate flash limitations in battery-operated and energy-harvested systems - the MSP430FR58471IRHAT specifically targets compact, I²C-centric sensor endpoints.
FAQ
What is the maximum operating frequency of the MSP430FR58471IRHAT?
The MSP430FR58471IRHAT supports a maximum system clock frequency of 16 MHz using its factory-trimmed DCO or external LFXT. It does not support HFXT, so high-frequency crystal operation is unavailable. This 16-MHz capability enables responsive real-time control while maintaining ultra-low active-mode current of ~100 µA/MHz - a key advantage for compute-bound sensor firmware on the MSP430FR58471IRHAT.
Does the MSP430FR58471IRHAT support hardware encryption or secure boot?
The MSP430FR58471IRHAT does not integrate AES hardware acceleration or secure boot circuitry. It includes a random number seed generator for software-based cryptographic primitives but lacks dedicated encryption engines or immutable boot ROM. Security relies on software implementation and memory protection unit (MPU) configuration - users must implement secure key storage and authenticated firmware updates externally when required for the MSP430FR58471IRHAT.
Can the MSP430FR58471IRHAT operate from a single 1.8-V supply?
Yes, the MSP430FR58471IRHAT operates across a supply range of 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including FRAM read/write, 12-bit ADC conversion, RTC operation, and I²C communication - verified per TI's recommended operating conditions. This makes the MSP430FR58471IRHAT suitable for direct connection to single-cell lithium batteries or energy-harvesting circuits without voltage boosting.
What development tools are supported for the MSP430FR58471IRHAT?
Texas Instruments supports the MSP430FR58471IRHAT with Code Composer Studio IDE, MSP430Ware driver library, and EnergyTrace++ technology for real-time power profiling. Hardware tools include the MSP-FET debugger and the MSP-TS430RGZ48C target socket board - though the latter is designed for 48-pin packages, adapter boards exist for 40-pin RHA devices like the MSP430FR58471IRHAT.
Is the RTC on the MSP430FR58471IRHAT functional without an external crystal?
No - the RTC_B module on the MSP430FR58471IRHAT requires the 32.768 kHz low-frequency crystal connected to PJ.4 (LFXIN) and PJ.5 (LFXOUT). The device lacks an internal low-frequency RC oscillator capable of RTC-grade accuracy; VLO is only usable for LPM3 standby (0.4 µA), not calendar-mode RTC. Accurate timekeeping on the MSP430FR58471IRHAT depends on proper crystal layout and load capacitance matching.
MSP430FR58471IRHAT 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:
MSP430FR58471IRHAT FAQ
1.How can I place an order for MSP430FR58471IRHAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR58471IRHAT 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 MSP430FR58471IRHAT reliable?
The price and inventory of MSP430FR58471IRHAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR58471IRHAT is usually 5 days.
3.What payment methods are accepted for MSP430FR58471IRHAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR58471IRHAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR58471IRHAT?
MSP430FR58471IRHAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR58471IRHAT 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 MSP430FR58471IRHAT?
For technical support, including MSP430FR58471IRHAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR58471IRHAT requirements.
6.How does Aetrix verify that MSP430FR58471IRHAT is sourced from the original manufacturer or authorized distributors?
All MSP430FR58471IRHAT 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 MSP430FR58471IRHAT meets industry standards.
7.What is the process for return or replacement of MSP430FR58471IRHAT?
All MSP430FR58471IRHAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR58471IRHAT, 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 MSP430FR58471IRHAT part is unused and in its original packaging.
Return procedure for MSP430FR58471IRHAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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