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Texas Instruments MSP430FR2476TRHAR
- Part No.:
- MSP430FR2476TRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2476TRHAR.pdf
- Description:
- IC MCU 16BIT 64.5KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,009
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Product details
Overview
MSP430FR2476TRHAR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 64KB FRAM, 8KB RAM, and a 12-bit ADC with 10 input channels - designed for battery-powered industrial sensors and medical wearables operating from 1.8 V to 3.6 V.
For engineers reviewing the MSP430FR2476TRHAR datasheet, MSP430FR2476TRHAR pinout, MSP430FR2476TRHAR application, or MSP430FR2476TRHAR equivalent, this page delivers verified specifications, package-accurate pin functions, real-world use cases, and validated alternative options for rapid low-power embedded design.
Technical Context
The MSP430FR2476TRHAR integrates a digitally controlled oscillator (DCO) with FLL achieving ±1% accuracy at room temperature, paired with multiple clock sources including REFO (32 kHz), VLO (10 kHz), MODOSC, and external LFXT support. Its clock system enables sub-10 µs wake-up from LPM3.5.
It features four Timer_A modules (each with three capture/compare registers), one Timer_B7 (seven CCRs), RTC counter, CRC engine, two eUSCI_A (UART/IrDA/SPI) and two eUSCI_B (SPI/I²C) peripherals - all fully functional in the 40-pin VQFN (RHA) package with 35 GPIOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators for high code efficiency and low active-mode current |
| Max Clock Frequency | 16 MHz - enables real-time sensor processing without external crystal dependency |
| FRAM Capacity | 64 KB program + 512 B information FRAM - supports fast (<1 µs), low-energy writes and 10¹⁵ endurance |
| ADC Resolution & Channels | 12-bit SAR ADC with 10 configurable input channels - suitable for multi-sensor analog front-end acquisition |
| Low-Power Modes | LPM3.5 (660 nA w/ 32.768 kHz RTC) and LPM4.5 (37 nA shutdown) - extends battery life in always-on monitoring |
| GPIO Count | 35 programmable I/O pins - all support pin-interrupt wake-up from any low-power mode |
| Operating Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, Li-poly, or dual alkaline battery systems |
Pinout & Package
Package: 40-pin VQFN (RHA), 6 mm × 6 mm, 0.5 mm pitch, thermally enhanced with exposed thermal pad (DVSS-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–20, 22–40 | GPIO / Peripheral Multiplexed I/O | 35 total usable pins supporting UART, SPI, I²C, timer I/O, ADC inputs, comparator, and RTC functions |
| RST/NMI/SBWTDIO (Pin 2) | Reset & Debug Interface | Active-low reset input; also serves as bidirectional Spy-Bi-Wire debug data line |
| TEST/SBWTCK (Pin 3) | Debug Clock Input | Provides clock signal for Spy-Bi-Wire programming and debugging interface |
| DVCC (Pin 39) | Digital Power Supply | Primary 1.8–3.6 V supply for digital core, FRAM, and I/O buffers; requires local 0.1 µF decoupling |
| DVSS (Pin 40) | Digital Ground | Reference ground for DVCC domain; must be connected to PCB ground plane with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64 KB nonvolatile program memory with ECC, write protection, and 10¹⁵ cycle endurance - eliminates flash wear-out concerns in data-logging applications |
| Ultra-Low-Power Operation | 660 nA LPM3.5 (RTC active) and 37 nA LPM4.5 - enables >10-year battery life in sealed sensor nodes |
| Integrated Analog Peripherals | 12-bit ADC (10 channels, 200 ksps), enhanced comparator (eCOMP), and 6-bit DAC reference generator - reduces external component count |
| Flexible Clock System | On-chip DCO+FLL (±1%), REFO, VLO, MODOSC, and external LFXT support - enables robust timing without external crystals in cost-sensitive designs |
| Pin Remap Capability | eUSCI and timer peripheral functions can be remapped across multiple GPIOs - improves PCB layout flexibility and routing efficiency |
Applications
| Industrial Sensor Node | Wearable Health Monitor |
|---|---|
|
Use Scenario: Compact, battery-operated temperature/humidity/pressure sensor deployed in HVAC ducts or factory floors. IC Role / Device Role / Timing Role: Main controller executing sensor polling, data logging to FRAM, and wireless transmission via UART/SPI. Use Value: LPM3.5 RTC operation enables precise time-stamped logging at 660 nA, extending 200 mAh coin cell life beyond 5 years. |
Use Scenario: Wireless pulse oximeter or ECG patch requiring continuous analog sensing and low-duty-cycle BLE reporting. IC Role / Device Role / Timing Role: Signal acquisition hub managing ADC sampling, comparator-based event detection, and sleep/wake coordination. Use Value: FRAM's instant-write capability captures transient physiological events without data loss during power transitions. |
| Battery Pack Monitor | Smart Thermostat Interface |
|
Use Scenario: Embedded fuel gauge and safety monitor inside rechargeable Li-ion packs for power tools or e-bikes. IC Role / Device Role / Timing Role: Real-time voltage/current/temperature acquisition, coulomb counting, and fault response via GPIO-driven protection circuits. Use Value: 1.8 V minimum operating voltage allows direct connection to deeply discharged cells without boost converter. |
Use Scenario: Low-cost residential thermostat with ambient sensing, display control, and HVAC relay management. IC Role / Device Role / Timing Role: Central MCU handling button input, LCD segment driving, I²C sensor reads, and relay timing via Timer_B7 PWM outputs. Use Value: 35 GPIOs and pin remap simplify integration of diverse peripherals while minimizing BOM count. |
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 |
|---|---|---|---|
| MSP430FR2475TRHA | 32 KB program FRAM, 6 KB RAM, same 40-pin VQFN package and peripheral set | Lower memory footprint suits simpler sensor firmware without extensive data buffering | Select when application code size remains under 32 KB and cost sensitivity outweighs future scalability needs |
| MSP430FR2676TRHAR | 64 KB FRAM, 8 KB RAM, adds CapTIvate™ touch I/O and enhanced comparator hysteresis control | Supports capacitive touch buttons/sliders alongside sensor functions - ideal for HMI-integrated devices | Choose when human interface elements (e.g., thermostat touch controls) are required alongside core sensing |
Compared with MSP430FR2475TRHA, the MSP430FR2476TRHAR provides double FRAM capacity for extended data logging; versus MSP430FR2676TRHAR, it omits CapTIvate hardware but maintains identical power/performance for pure sensing roles - simplifying firmware and reducing EMI susceptibility.
Availability
MSP430FR2476TRHAR is available at Aetrix Electronics and suitable for industrial sensor nodes, wearable health monitors, and battery pack management systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MSP430FR2476TRHAR 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 with deep expertise in ultra-low-power design and precision analog integration.
The MSP430FR247x family targets cost-sensitive, battery-constrained sensing applications - combining FRAM nonvolatility, sub-µA real-time clock operation, and integrated analog peripherals to minimize system-level BOM and power consumption.
FAQ
What is the maximum operating frequency of the MSP430FR2476TRHAR?
The MSP430FR2476TRHAR supports a maximum system clock frequency of 16 MHz, achieved using its on-chip digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This frequency is stable across the full operating voltage range (1.8 V to 3.6 V) and temperature range (–40°C to 105°C), enabling deterministic real-time performance in demanding sensor applications without external high-frequency crystals.
How many ADC input channels does the MSP430FR2476TRHAR support?
The MSP430FR2476TRHAR integrates a 12-bit SAR analog-to-digital converter with up to 10 configurable input channels in the 40-pin VQFN (RHA) package. This is confirmed in the Device Comparison table and Pin Attributes section of the official datasheet, where pins P1.0–P1.3, P2.2, P3.0, P3.3, P4.3–P4.4, and P5.3–P5.4 are designated as analog inputs (A0–A11), with channel count reduced from 12 (in 48-pin variant) to 10 due to pin count constraints.
Does the MSP430FR2476TRHAR include hardware error correction for FRAM?
Yes, the MSP430FR2476TRHAR includes built-in hardware error correction code (ECC) for its 64 KB program FRAM and 512 B information FRAM. This ECC logic operates transparently during read/write operations and detects/corrects single-bit errors - ensuring data integrity in mission-critical logging applications such as industrial condition monitoring or medical device parameter storage.
What debug interface does the MSP430FR2476TRHAR support?
The MSP430FR2476TRHAR supports the Spy-Bi-Wire (SBW) debug interface using two dedicated pins: RST/NMI/SBWTDIO (Pin 2) and TEST/SBWTCK (Pin 3). This 2-wire interface enables full JTAG-equivalent functionality - including flash programming, breakpoint setting, and real-time register inspection - using TI's MSP-FET or compatible debug probes, with minimal PCB footprint impact.
Is the MSP430FR2476TRHAR qualified for extended temperature operation?
Yes, the MSP430FR2476TRHAR is specified for operation across –40°C to +105°C, as explicitly stated in the device description and Recommended Operating Conditions section of the datasheet. This extended temperature range makes it suitable for under-hood automotive sensors, industrial motor controllers, and outdoor environmental monitoring equipment where thermal resilience is critical.
MSP430FR2476TRHAR 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 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 35
- Program Memory Size:
- 64.5KB (64.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2476TRHAR FAQ
1.How can I place an order for MSP430FR2476TRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2476TRHAR 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 MSP430FR2476TRHAR reliable?
The price and inventory of MSP430FR2476TRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2476TRHAR is usually 5 days.
3.What payment methods are accepted for MSP430FR2476TRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2476TRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2476TRHAR?
MSP430FR2476TRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2476TRHAR 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 MSP430FR2476TRHAR?
For technical support, including MSP430FR2476TRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2476TRHAR requirements.
6.How does Aetrix verify that MSP430FR2476TRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2476TRHAR 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 MSP430FR2476TRHAR meets industry standards.
7.What is the process for return or replacement of MSP430FR2476TRHAR?
All MSP430FR2476TRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2476TRHAR, 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 MSP430FR2476TRHAR part is unused and in its original packaging.
Return procedure for MSP430FR2476TRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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