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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Texas Instruments MSP430FR2475TRHBR

Name: MSP430FR2475TRHBR
Brand: Texas Instruments
SKU: MSP430FR2475TRHBR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MSP430FR2475TRHBR

Manufacturer:: Texas Instruments

Category:: Microcontrollers

Package:: 32-VFQFN Exposed Pad

Datasheet:: MSP430FR2475TRHBR.pdf

Description:: IC MCU 16BIT 32.5KB FRAM 32VQFN

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Product details

Overview

MSP430FR2475TRHBR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 32KB program FRAM, 6KB RAM, and a 12-bit SAR ADC with 12 input channels. It operates from 1.8 V to 3.6 V, supports up to 16 MHz DCO clocking, and delivers 135 µA/MHz active current. It targets battery-powered industrial sensors and medical wearables requiring nonvolatile data logging at extended temperature (–40°C to 105°C).

For engineers reviewing the MSP430FR2475TRHBR datasheet, MSP430FR2475TRHBR pinout, MSP430FR2475TRHBR application, or MSP430FR2475TRHBR equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), LPM3.5 RTC operation at 660 nA, eUSCI_A/B serial flexibility, and 40-pin VQFN (RHA) package compatibility with TI's LP-MSP430FR2476 LaunchPad™.

Technical Context

The MSP430FR2475TRHBR integrates a digitally controlled oscillator (DCO) with FLL for ±1% accuracy at room temperature, paired with multiple clock sources including REFO (32 kHz), VLO (10 kHz), MODOSC, and external LFXT. Its memory subsystem unifies program, constants, and data in 32KB FRAM with ECC and configurable write protection.

Peripherals include four Timer_A3 modules (3×CCR each), one Timer_B7 (7×CCR), RTC counter, 16-bit CRC engine, two eUSCI_A (UART/IrDA/SPI) and two eUSCI_B (SPI/I²C) interfaces, and an enhanced comparator with programmable hysteresis - all accessible via 35 GPIOs on the RHA package.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	16-bit RISC CPU with constant generators for optimized code efficiency in low-power sensing firmware
FRAM Capacity	32KB program + 512B information FRAM - enables instant nonvolatile writes without erase delay or wear leveling overhead
RAM Size	6KB SRAM - sufficient for real-time sensor buffering and interrupt context storage in LPM wake-up routines
ADC Resolution	12-bit SAR with 12 channels and 200 ksps sample rate - supports multi-sensor analog front-end acquisition
Low-Power Modes	LPM3.5 draws 660 nA with RTC active - allows decade-scale battery life in always-on timestamped logging applications
Package	40-pin VQFN (RHA), 6 mm × 6 mm - compact footprint suitable for space-constrained IoT sensor nodes
Operating Temp	–40°C to +105°C - validated for industrial environments where flash-based MCUs may degrade or require derating

Pinout & Package

Package: 40-pin VQFN (RHA), 6 mm × 6 mm, exposed thermal pad, RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
RST/NMI/SBWTDIO	Reset / NMI input / Spy-Bi-Wire data I/O	Single-pin debug interface for programming and in-circuit debugging; dual-function reset with NMI capability
TEST/SBWTCK	Spy-Bi-Wire clock input	Enables JTAG-like debugging using only two pins - reduces PCB routing complexity vs full JTAG
P1.0–P1.7	General-purpose I/O with peripheral multiplexing	Support UART (eUSCI_A0), SPI (eUSCI_B0), timer capture/compare, analog inputs (A0–A7), and reference voltage outputs
P2.0/P2.1	LFXT crystal oscillator terminals	Connect external 32.768 kHz crystal for high-accuracy RTC timing; requires external load capacitors
DVCC/DVSS	Digital power supply pair	Must be decoupled with 4.7–10 µF bulk and 0.1 µF ceramic capacitors per TI layout guidelines

Key Features

Feature	Design Value
Ferroelectric RAM (FRAM)	32KB unified program/data memory with 10¹⁵ write cycles, ECC, and no erase latency - eliminates flash wear-out concerns in frequent data-logging systems
Ultra-Low-Power RTC	LPM3.5 mode sustains real-time clock with 32.768 kHz crystal at 660 nA - enables years of timestamped sensor data retention on coin cell
Flexible Serial Interfaces	Two eUSCI_A (UART/SPI/IrDA) and two eUSCI_B (SPI/I²C) with pin remap - simplifies board layout and supports mixed-protocol sensor networks
Integrated Analog Front-End	12-bit ADC with 12 channels, internal 1.5/2.0/2.5 V references, and sample-and-hold - reduces BOM cost by eliminating external reference and mux ICs
Fast Wake-Up	DCO enables sub-10 µs wake from LPM to active mode - critical for duty-cycled sensor sampling with minimal idle overhead

Applications

Industrial Sensor Node	Wearable Health Monitor
Use Scenario: Compact environmental sensor measuring temperature, humidity, and CO₂ in HVAC ducts or factory floors. IC Role / Device Role / Timing Role: Central controller executing sensor polling, calibration, FRAM-based event logging, and UART-based Modbus RTU communication. Use Value: 105°C rating ensures reliability near heat sources; FRAM enables burst logging during transient events without data loss.	Use Scenario: Battery-powered ECG patch capturing biopotential signals and transmitting alerts via BLE companion MCU. IC Role / Device Role / Timing Role: Analog signal conditioner and low-power supervisor managing ADC sampling, comparator thresholds, and RTC-triggered sleep/wake cycles. Use Value: 660 nA LPM3.5 extends battery life beyond 12 months; integrated reference and hysteresis reduce external component count.
Battery Management Unit	Smart Thermostat Interface
Use Scenario: Cell voltage monitoring and protection logic in rechargeable Li-ion battery packs for power tools. IC Role / Device Role / Timing Role: Precision ADC reads cell voltages and thermistors; FRAM stores cycle-count history and fault logs across charge/discharge cycles. Use Value: 10¹⁵ FRAM writes support >10,000 full-cycle logs over product lifetime without degradation.	Use Scenario: Local control unit in residential thermostats managing display, button inputs, ambient sensors, and HVAC relay drivers. IC Role / Device Role / Timing Role: Real-time system manager handling touch interface, temperature compensation, and scheduled heating/cooling via RTC alarm interrupts. Use Value: Sub-10 µs wake-up ensures responsive UI; 40-pin RHA package fits tight PCB space while providing 35 GPIOs for expansion headers.

Industrial Sensor Node

Wearable Health Monitor

Use Scenario: Compact environmental sensor measuring temperature, humidity, and CO₂ in HVAC ducts or factory floors.

IC Role / Device Role / Timing Role: Central controller executing sensor polling, calibration, FRAM-based event logging, and UART-based Modbus RTU communication.

Use Value: 105°C rating ensures reliability near heat sources; FRAM enables burst logging during transient events without data loss.

Use Scenario: Battery-powered ECG patch capturing biopotential signals and transmitting alerts via BLE companion MCU.

IC Role / Device Role / Timing Role: Analog signal conditioner and low-power supervisor managing ADC sampling, comparator thresholds, and RTC-triggered sleep/wake cycles.

Use Value: 660 nA LPM3.5 extends battery life beyond 12 months; integrated reference and hysteresis reduce external component count.

Battery Management Unit

Smart Thermostat Interface

Use Scenario: Cell voltage monitoring and protection logic in rechargeable Li-ion battery packs for power tools.

IC Role / Device Role / Timing Role: Precision ADC reads cell voltages and thermistors; FRAM stores cycle-count history and fault logs across charge/discharge cycles.

Use Value: 10¹⁵ FRAM writes support >10,000 full-cycle logs over product lifetime without degradation.

Use Scenario: Local control unit in residential thermostats managing display, button inputs, ambient sensors, and HVAC relay drivers.

IC Role / Device Role / Timing Role: Real-time system manager handling touch interface, temperature compensation, and scheduled heating/cooling via RTC alarm interrupts.

Use Value: Sub-10 µs wake-up ensures responsive UI; 40-pin RHA package fits tight PCB space while providing 35 GPIOs for expansion headers.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MSP430FR2476TRHBR	64KB FRAM, 8KB RAM, identical peripherals and pinout	Same package and footprint; higher memory supports larger firmware or extended data buffers	Select when firmware size exceeds 32KB or additional RAM is needed for complex algorithms
MSP430FR2355TRHBR	16KB FRAM, 2KB RAM, same RHA package but reduced timers (2×TA3), no TB0, 10 ADC channels	Lower-cost option for simpler sensor nodes with fewer analog inputs or timing requirements	Choose for cost-sensitive designs where memory and peripheral headroom are not required

Compared with MSP430FR2475TRHBR, the MSP430FR2476TRHBR offers double FRAM/RAM for scalable firmware, while the MSP430FR2355TRHBR reduces memory and peripherals to lower BOM cost - both maintain identical 40-pin VQFN packaging and core ultra-low-power architecture.

Availability

MSP430FR2475TRHBR is available at Aetrix Electronics and suitable for industrial sensor nodes, wearable health monitors, and battery management units requiring stable component supply and long-term lifecycle assurance.

Supply support for MSP430FR2475TRHBR 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 low-power design and precision analog integration.

The MSP430FR247x product line targets ultra-low-power sensing and measurement applications, combining FRAM nonvolatility with holistic power architecture to extend battery life while enabling robust data logging in harsh environments.

FAQ

What is the maximum operating frequency of the MSP430FR2475TRHBR?

The MSP430FR2475TRHBR supports a maximum system clock frequency of 16 MHz via its digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This frequency is achievable across the full 1.8 V–3.6 V supply range and maintains ±1% accuracy at room temperature using the on-chip reference. The DCO enables fast wake-up from low-power modes in under 10 µs, making it suitable for responsive sensor polling and real-time control tasks within the MSP430FR2475TRHBR platform.

Does the MSP430FR2475TRHBR support external crystal oscillators?

Yes, the MSP430FR2475TRHBR supports external 32.768 kHz crystals via the XIN/XOUT pins (P2.1/P2.0) for high-accuracy real-time clock operation. It also supports external high-frequency crystals through the XT1 oscillator input, though the primary low-frequency crystal interface is used for LPM3.5 RTC functionality. The device includes internal load capacitance options and requires external matching capacitors per TI's layout recommendations in the SLASEO7C datasheet. This capability is fully implemented in the MSP430FR2475TRHBR silicon.

How many ADC channels does the MSP430FR2475TRHBR have, and what is its sampling rate?

The MSP430FR2475TRHBR features a 12-bit successive approximation register (SAR) ADC with up to 12 input channels. Its maximum sampling rate is 200 ksps (kilo-samples per second) with sample-and-hold enabled. The ADC supports internal reference voltages of 1.5 V, 2.0 V, or 2.5 V, and includes dedicated analog input pins mapped across multiple port registers. This performance is specified and verified for the MSP430FR2475TRHBR in the production datasheet SLASEO7C, enabling reliable multi-sensor acquisition in compact embedded systems.

What debug interface does the MSP430FR2475TRHBR use?

The MSP430FR2475TRHBR uses the Spy-Bi-Wire (SBW) interface for programming and debugging, accessed via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. SBW is a two-wire variant of JTAG that reduces PCB footprint and routing complexity while supporting full read/write memory access, breakpoint setting, and real-time variable inspection. This interface is natively supported by TI's Code Composer Studio™ and MSP430 Flash Emulation Tool (FET), and is integral to the MSP430FR2475TRHBR's development ecosystem.

Is the MSP430FR2475TRHBR pin-compatible with other devices in the FR247x family?

Yes, the MSP430FR2475TRHBR is pin-compatible with the MSP430FR2476TRHBR in the same 40-pin VQFN (RHA) package - sharing identical pin functions, electrical characteristics, and mechanical dimensions. However, it is not pin-compatible with the 48-pin PT or 32-pin RHB variants due to differing pin counts and signal allocations. This RHA-level compatibility allows seamless migration between MSP430FR2475TRHBR and MSP430FR2476TRHBR without PCB redesign, provided firmware accommodates the memory difference.

MSP430FR2475TRHBR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: 32-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:: 27

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 8x12b SAR

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

MSP430FR2475TRHBR FAQ

1.How can I place an order for MSP430FR2475TRHBR through Aetrix?

Please submit a Request for Quotation (RFQ) for MSP430FR2475TRHBR 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 MSP430FR2475TRHBR reliable?

The price and inventory of MSP430FR2475TRHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2475TRHBR is usually 5 days.

3.What payment methods are accepted for MSP430FR2475TRHBR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2475TRHBR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MSP430FR2475TRHBR?

MSP430FR2475TRHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MSP430FR2475TRHBR 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 MSP430FR2475TRHBR?

For technical support, including MSP430FR2475TRHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2475TRHBR requirements.

6.How does Aetrix verify that MSP430FR2475TRHBR is sourced from the original manufacturer or authorized distributors?

All MSP430FR2475TRHBR 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 MSP430FR2475TRHBR meets industry standards.

7.What is the process for return or replacement of MSP430FR2475TRHBR?

All MSP430FR2475TRHBR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2475TRHBR, 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 MSP430FR2475TRHBR part is unused and in its original packaging.

Return procedure for MSP430FR2475TRHBR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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