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Texas Instruments MSP430FR2475TRHAR
- Part No.:
- MSP430FR2475TRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2475TRHAR.pdf
- Description:
- IC MCU 16BIT 32.5KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,839
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Product details
Overview
MSP430FR2475TRHAR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 32KB program FRAM, 512B information FRAM, and 6KB RAM in a 40-pin VQFN (RHA) package. It integrates a 12-bit SAR ADC with 10 input channels, one enhanced comparator, dual eUSCI_A (UART/SPI/IrDA) and dual eUSCI_B (SPI/I²C) peripherals, and operates from 1.8 V to 3.6 V - optimized for battery-powered industrial sensors and medical wearables.
For engineers reviewing the MSP430FR2475TRHAR datasheet, MSP430FR2475TRHAR pinout, MSP430FR2475TRHAR application, or MSP430FR2475TRHAR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 RTC current (660 nA), 35 GPIOs with interrupt capability, and support for external 32-kHz crystal or internal DCO with ±1% accuracy at room temperature.
Technical Context
The MSP430FR2475TRHAR implements a digitally controlled oscillator (DCO) with frequency-locked loop (FLL), enabling sub-10 µs wake-up from LPM3.5 to active mode. Its clock system supports multiple sources: internal 16-MHz DCO, 32-kHz REFO, 10-kHz VLO, and external LFXT crystal - all configurable via programmable prescalers for MCLK and SMCLK.
It features four Timer_A modules (each with three capture/compare registers) and one Timer_B7 (seven CCRs), plus a dedicated 16-bit RTC counter. The unified FRAM architecture enables simultaneous code execution and data logging without erase cycles, while ECC ensures memory integrity during radiation exposure or voltage transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators for high code efficiency and low power per instruction. |
| Memory | 32KB program FRAM + 512B information FRAM + 6KB RAM - unified nonvolatile memory enabling instant write, no erase, and 10¹⁵ endurance. |
| ADC | 12-bit SAR ADC with 10 input channels, 200 ksps sample rate, and internal 1.5/2.0/2.5 V reference - suitable for precision sensor signal acquisition. |
| Low-Power Modes | LPM3.5 draws 660 nA (RTC active with 32.768-kHz crystal); LPM4.5 draws 37 nA - enables multi-year battery life in always-on sensing nodes. |
| Operating Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and alkaline batteries without external regulation. |
| Package & I/O | 40-pin VQFN (RHA), 6 mm × 6 mm, 35 GPIOs - all support pin-interrupt wake-up from any low-power mode. |
| Clock Accuracy | ±1% DCO frequency accuracy at room temperature using on-chip reference - eliminates need for external crystal in cost-sensitive applications. |
Pinout & Package
Package: 40-pin VQFN (RHA), 6 mm × 6 mm, 0.5 mm pitch, exposed thermal pad. Pinout conforms to TI's standard MSP430FR247x RHA mapping with 35 functional GPIOs, dual crystal pins (XIN/XOUT), DVCC/DVSS power pair, and SBW debug interface (RST/NMI/SBWTDIO, TEST/SBWTCK).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Single-pin debug interface for programming and real-time debugging; also serves as system reset and NMI input. |
| TEST/SBWTCK | Spy-Bi-Wire clock | Provides clock for SBW interface; required for flash programming and JTAG emulation via TI debuggers. |
| P1.0–P1.7 | General-purpose I/O with peripheral multiplexing | Support UART (UCA0), SPI (UCB0), timers (TA0/TA1), analog inputs (A0–A7), and comparator functions - full remap capability via eUSCI control registers. |
| P2.0/P2.1 | LFXT crystal oscillator terminals | Connect external 32.768-kHz crystal for RTC accuracy; internal load capacitors configurable via CSCTL tuning bits. |
| P3.0–P3.7 | Timer_A2/A3 and comparator I/O | Provide TA2/TA3 capture/compare outputs, COMP0OUT, and analog inputs A8–A11 - enable motor control timing and analog threshold detection. |
| P4.0–P4.7 | eUSCI_B1, TA3, and TB0 signals | Drive I²C (UCB1), SPI (UCB1/UCB0), and Timer_B0 outputs (TB0.0–TB0.6) - support multi-sensor bus interfacing and PWM generation. |
| P5.0–P5.7 | eUSCI_A0, ADC, and timer inputs | Host UCA0 (UART/SPI), ADC channels A0–A11, and TB0 trigger (TB0TRG) - enable serial telemetry and analog front-end integration. |
| DVCC / DVSS | Digital/analog power supply pair | Single 1.8–3.6 V supply powers both digital logic and analog modules; requires 4.7 µF bulk + 0.1 µF ceramic decoupling per supply pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32KB program + 512B info FRAM with ECC, 10¹⁵ write endurance, and zero-write-delay - enables robust data logging without flash wear-out management. |
| Ultra-Low-Power RTC | LPM3.5 mode consumes only 660 nA with 32.768-kHz crystal - supports decade-long battery operation in thermostats and environmental monitors. |
| Pin-Remappable eUSCI | Two eUSCI_A and two eUSCI_B modules support UART, SPI, I²C, and IrDA with full pin remap - simplifies PCB layout and enables flexible peripheral routing. |
| Integrated Analog Subsystem | 12-bit ADC (10 channels), enhanced comparator with programmable hysteresis, and 6-bit DAC reference generator - reduces BOM count in sensor nodes. |
| Fast Wake-Up Architecture | DCO+FLL enables <10 µs wake-up from LPM3.5 to active mode - critical for duty-cycled wireless sensor applications requiring rapid response. |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Compact, battery-powered temperature/humidity sensor deployed in HVAC ducts or factory floors for continuous environmental logging. IC Role / Device Role / Timing Role: Main controller executing sensor polling, FRAM-based data buffering, RTC-timestamped storage, and UART telemetry transmission. Use Value: 660 nA LPM3.5 current extends 2xAA battery life beyond 5 years; FRAM enables 100% reliable timestamped logging without wear leveling overhead. |
Use Scenario: Wearable ECG or pulse oximeter requiring low-noise analog front-end, real-time signal processing, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal acquisition controller managing 12-bit ADC sampling, comparator-based R-peak detection, and SPI interface to BLE SoC. Use Value: Integrated 12-bit ADC with 200 ksps and programmable hysteresis enables accurate biopotential measurement; 35 GPIOs support multi-electrode configurations. |
| Battery Pack Management | Smart Appliance Control |
Use Scenario: Lithium-ion battery pack monitor in power tools or e-bikes, measuring cell voltage, temperature, and charge/discharge current. IC Role / Device Role / Timing Role: Safety-critical supervisor performing periodic ADC measurements, FRAM-based fault history logging, and SMBus/I²C communication with host MCU. Use Value: Radiation-resistant FRAM ensures data integrity under EMI-rich motor environments; ±1% DCO accuracy eliminates crystal cost in cost-sensitive packs. |
Use Scenario: Embedded controller in smart refrigerators or washing machines managing user interface, motor timing, and energy metering. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating PWM-driven BLDC motor control (via Timer_B7), touch-button scanning, and display backlight dimming. Use Value: Four Timer_A modules and Timer_B7 with seven CCRs provide independent PWM channels for multi-motor control; 105°C extended temp rating supports under-hood use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2476TRHAR | 64KB program FRAM, 8KB RAM, 12 ADC channels vs. 32KB/6KB/10 - identical pinout and peripheral set. | Required when larger firmware footprint or higher-channel sensor aggregation is needed. | Select MSP430FR2476TRHAR if future firmware expansion or additional analog inputs justify the higher memory cost. |
| MSP430FR2355TRHAR | 32KB FRAM but adds 4-opamp analog front-end and 4x DAC; lacks Timer_B7 and one eUSCI_A; same 40-pin RHA package. | Better suited for analog-intensive applications like current sensing or sensor signal conditioning where opamps reduce external components. | Choose MSP430FR2355TRHAR when analog signal chain integration outweighs need for dual UART or Timer_B7 PWM flexibility. |
Compared with MSP430FR2475TRHAR, the MSP430FR2476TRHAR offers double FRAM and RAM with identical power/performance; the MSP430FR2355TRHAR trades timer and serial resources for integrated analog signal conditioning - making each optimal for distinct subsystem roles in ultra-low-power designs.
Availability
MSP430FR2475TRHAR is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, and battery pack management systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MSP430FR2475TRHAR 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 specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in low-power design.
The MSP430FR247x product line targets ultra-low-power sensing and measurement applications - combining FRAM nonvolatility, sub-µA RTC, and integrated analog to simplify battery-operated IoT edge node development.
FAQ
What is the maximum operating frequency of the MSP430FR2475TRHAR?
The MSP430FR2475TRHAR supports a maximum system clock frequency of 16 MHz using its digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This allows real-time processing of sensor data and communication protocols while maintaining ultra-low active-mode current of 135 µA/MHz - verified across the full 1.8 V to 3.6 V supply range.
Does the MSP430FR2475TRHAR support external crystal oscillators?
Yes, the MSP430FR2475TRHAR supports external 32.768-kHz crystals via P2.0 (XOUT) and P2.1 (XIN) pins for precise RTC operation. It also supports external high-frequency crystals through the LFXT oscillator module, with internal load capacitance tuning available in the CSCTL registers - enabling accurate timekeeping without external capacitors in many configurations.
How many ADC input channels does the MSP430FR2475TRHAR have?
The MSP430FR2475TRHAR features a 12-bit SAR ADC with up to 10 configurable input channels (A0–A9), as confirmed in the Device Comparison table and Section 8.12.8 of the datasheet. This is fewer than the 12-channel variant (MSP430FR2476), reflecting its optimized feature set for cost-sensitive, lower-channel-count applications.
Is the MSP430FR2475TRHAR pin-compatible with other devices in the FR247x family?
Yes, the MSP430FR2475TRHAR shares identical pinout, package dimensions, and signal mapping with the MSP430FR2476TRHAR in the 40-pin VQFN (RHA) package - enabling direct hardware reuse when upgrading firmware memory requirements. However, it is not pin-compatible with the 48-pin PT or 32-pin RHB variants due to differing pin counts and assignments.
What debug interface does the MSP430FR2475TRHAR use?
The MSP430FR2475TRHAR uses the two-wire Spy-Bi-Wire (SBW) interface via RST/NMI/SBWTDIO and TEST/SBWTCK pins for programming and debugging. This interface is fully supported by TI's MSP-FET debugger and Code Composer Studio IDE, enabling flash programming, real-time variable inspection, and breakpoint debugging without requiring a full 4-pin JTAG connector.
MSP430FR2475TRHAR 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:
- 32.5KB (32.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 4K 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:
MSP430FR2475TRHAR FAQ
1.How can I place an order for MSP430FR2475TRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2475TRHAR 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 MSP430FR2475TRHAR reliable?
The price and inventory of MSP430FR2475TRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2475TRHAR is usually 5 days.
3.What payment methods are accepted for MSP430FR2475TRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2475TRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2475TRHAR?
MSP430FR2475TRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2475TRHAR 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 MSP430FR2475TRHAR?
For technical support, including MSP430FR2475TRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2475TRHAR requirements.
6.How does Aetrix verify that MSP430FR2475TRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2475TRHAR 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 MSP430FR2475TRHAR meets industry standards.
7.What is the process for return or replacement of MSP430FR2475TRHAR?
All MSP430FR2475TRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2475TRHAR, 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 MSP430FR2475TRHAR part is unused and in its original packaging.
Return procedure for MSP430FR2475TRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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