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

Texas Instruments MSP430FR2475TRHBT

Name: MSP430FR2475TRHBT
Brand: Texas Instruments
SKU: MSP430FR2475TRHBT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MSP430FR2475TRHBT

Manufacturer:: Texas Instruments

Category:: Microcontrollers

Package:: 32-VFQFN Exposed Pad

Datasheet:: MSP430FR2475TRHBT.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MSP430FR2475TRHBT 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 - optimized for battery-powered industrial sensors and medical wearables.

For engineers reviewing the MSP430FR2475TRHBT datasheet, MSP430FR2475TRHBT pinout, MSP430FR2475TRHBT application, or MSP430FR2475TRHBT equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), LPM3.5 RTC operation at 660 nA, integrated eCOMP and 6-bit DAC reference, and 40-pin VQFN (RHA) package compatibility with TI's LP-MSP430FR2476 LaunchPad™.

Technical Context

The MSP430FR2475TRHBT implements a digitally controlled oscillator (DCO) with FLL, ±1% accuracy at room temperature using on-chip REFO, and supports multiple clock sources including LFXT (32 kHz crystal), VLO (10 kHz), and MODOSC. Its clock system enables dynamic MCLK/SMCLK prescaling (1–128 and 1–8) for precise power-performance tradeoffs across operating modes.

It integrates four Timer_A modules (each with three capture/compare registers), one Timer_B7 (seven CCRs), a dedicated RTC counter, and dual eUSCI_A (UART/IrDA/SPI) and eUSCI_B (SPI/I²C) peripherals with full pin remap capability - enabling flexible signal routing without PCB redesign.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	16-bit RISC CPU with constant generators; enables high code efficiency and low-cycle-count execution for sensor firmware.
Memory	32KB program FRAM + 512B information FRAM + 6KB RAM; unified nonvolatile memory eliminates flash erase delays and supports atomic writes.
ADC	12-bit SAR ADC with 12-channel input multiplexer and 200 ksps sample rate; supports direct sensor interface with internal 1.5/2.0/2.5 V reference.
Low-Power Modes	LPM3.5 RTC mode draws 660 nA (typical) with 32.768 kHz crystal; LPM4.5 shutdown draws 37 nA without SVS - extends coin-cell life beyond 10 years.
Operating Voltage	1.8 V to 3.6 V supply range; minimum voltage constrained by SVS thresholds - ensures reliable brown-out detection in variable battery conditions.
Package	40-pin VQFN (RHA), 6 mm × 6 mm body; exposes 35 GPIOs with interrupt capability on all pins for wake-from-sleep event handling.
Temperature Range	–40°C to +105°C industrial grade; validated for use in thermostats, EPOS, and battery-pack monitoring under thermal stress.

Pinout & Package

40-pin VQFN (RHA) package, 6 mm × 6 mm, 0.5 mm pitch, exposed thermal pad. Pin functions conform to TI SLASEO7C Rev. C (September 2021).

Pin/Terminal	Circuit Role	Design Meaning
RST/NMI/SBWTDIO	Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O	Single-pin debug and reset interface; enables in-system programming and low-pin-count JTAG emulation.
TEST/SBWTCK	Spy-Bi-Wire clock	Provides synchronous timing for SBW debug communication; requires no external pull-up for standard TI toolchain support.
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 Veref+/- sourcing.
P2.0/P2.1	LFXT crystal oscillator terminals	Drive external 32.768 kHz crystal for RTC accuracy; require matched load capacitors per TI crystal layout guidelines.
DVCC/DVSS	Digital power supply pair	Requires 4.7–10 µF bulk + 0.1 µF ceramic decoupling per TI recommendations to stabilize FRAM write cycles and ADC sampling.

Key Features

Feature	Design Value
Ferroelectric RAM (FRAM)	32KB program + 512B info FRAM with ECC, 10¹⁵ write endurance, and radiation resistance - ideal for frequent data logging in harsh environments.
Ultra-low-power RTC	LPM3.5 mode maintains real-time clock with 32.768 kHz crystal at 660 nA - enables calendar/time-stamping without external RTC IC.
Intelligent peripherals	Timer_B7 with seven capture/compare registers supports complex PWM generation or pulse-width measurement without CPU intervention.
Analog subsystem	Integrated 6-bit DAC provides programmable reference voltage (1.5/2.0/2.5 V) for ADC and comparator; eCOMP includes hysteresis control.
Pin remap capability	All eUSCI and timer signals support software-configurable pin mapping - simplifies PCB layout and enables functional reuse across board revisions.

Applications

Industrial Sensor Node	Portable Medical Monitor
Use Scenario: Compact wireless temperature/humidity node powered by CR2032 battery with BLE connectivity. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, FRAM-based data buffering, RTC timestamping, and low-power sleep/wake scheduling. Use Value: 37 nA LPM4.5 shutdown and 10¹⁵-cycle FRAM enable >5-year maintenance-free operation and reliable long-term data retention.	Use Scenario: Wearable heart-rate monitor with optical PPG sensing and motion compensation. IC Role / Device Role / Timing Role: Signal processor acquiring ADC samples, running digital filters, and driving OLED display via SPI. Use Value: 200 ksps ADC sampling and integrated 6-bit DAC reference reduce BOM count while maintaining analog signal chain accuracy.
Battery-Pack Management	Smart Thermostat Interface
Use Scenario: Li-ion pack with cell voltage monitoring, temperature sensing, and protection logic. IC Role / Device Role / Timing Role: Safety-critical supervisor executing periodic cell voltage reads, thermal checks, and fault flagging via GPIO. Use Value: –40°C to +105°C rating and FRAM data integrity ensure reliable operation across automotive and industrial battery environments.	Use Scenario: HVAC control panel with touch interface, ambient sensor fusion, and wireless reporting. IC Role / Device Role / Timing Role: Human-machine interface controller handling button debouncing, display updates, and local sensor polling. Use Value: 40-pin VQFN package and 35 interrupt-capable GPIOs support direct connection to capacitive touch pads and multi-sensor arrays without glue logic.

Industrial Sensor Node

Portable Medical Monitor

Use Scenario: Compact wireless temperature/humidity node powered by CR2032 battery with BLE connectivity.

IC Role / Device Role / Timing Role: Main controller managing sensor acquisition, FRAM-based data buffering, RTC timestamping, and low-power sleep/wake scheduling.

Use Value: 37 nA LPM4.5 shutdown and 10¹⁵-cycle FRAM enable >5-year maintenance-free operation and reliable long-term data retention.

Use Scenario: Wearable heart-rate monitor with optical PPG sensing and motion compensation.

IC Role / Device Role / Timing Role: Signal processor acquiring ADC samples, running digital filters, and driving OLED display via SPI.

Use Value: 200 ksps ADC sampling and integrated 6-bit DAC reference reduce BOM count while maintaining analog signal chain accuracy.

Battery-Pack Management

Smart Thermostat Interface

Use Scenario: Li-ion pack with cell voltage monitoring, temperature sensing, and protection logic.

IC Role / Device Role / Timing Role: Safety-critical supervisor executing periodic cell voltage reads, thermal checks, and fault flagging via GPIO.

Use Value: –40°C to +105°C rating and FRAM data integrity ensure reliable operation across automotive and industrial battery environments.

Use Scenario: HVAC control panel with touch interface, ambient sensor fusion, and wireless reporting.

IC Role / Device Role / Timing Role: Human-machine interface controller handling button debouncing, display updates, and local sensor polling.

Use Value: 40-pin VQFN package and 35 interrupt-capable GPIOs support direct connection to capacitive touch pads and multi-sensor arrays without glue logic.

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
MSP430FR2476TRHBT	64KB program FRAM, 8KB RAM, identical peripherals and pinout	Higher memory headroom for complex firmware or larger OTA update partitions	Select when future scalability or extended feature sets (e.g., larger bootloader) are required.
MSP430FR2672TRHBT	Capacitive touch IO (CAPT), 16KB FRAM, 2KB RAM, same 40-pin RHA package	Optimized for touch-button HMI; lacks full 12-channel ADC and Timer_B7	Choose only if capacitive touch is primary requirement and memory/performance demands are lower.

Compared with MSP430FR2475TRHBT, the MSP430FR2476TRHBT offers double FRAM/RAM with zero layout change, while the MSP430FR2672TRHBT trades memory and analog capability for integrated CAPT - making MSP430FR2475TRHBT the optimal balance of cost, memory, and mixed-signal flexibility in 40-pin industrial sensing.

Availability

MSP430FR2475TRHBT is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, and battery-pack management systems requiring stable component supply, long-lifecycle assurance, and TI-qualified production-grade silicon.

Supply support for MSP430FR2475TRHBT 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 over 50 years of innovation in low-power design and precision analog integration.

The MSP430FR247x product line targets cost-sensitive, ultra-low-power sensing and measurement applications - combining FRAM nonvolatility, extended temperature operation, and TI's mature ULP architecture for rapid time-to-market.

FAQ

What is the maximum operating frequency of the MSP430FR2475TRHBT?

The MSP430FR2475TRHBT supports a maximum system clock frequency of 16 MHz via its digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This is achievable across the full 1.8 V–3.6 V supply range and validated over the –40°C to +105°C temperature range. The DCO accuracy is ±1% at room temperature using the internal reference oscillator, and the device includes programmable MCLK prescalers (1–128) to scale performance to application needs. MSP430FR2475TRHBT maintains this timing specification under all recommended operating conditions.

Does the MSP430FR2475TRHBT support hardware debugging?

Yes, the MSP430FR2475TRHBT supports hardware debugging via the two-pin Spy-Bi-Wire (SBW) interface using RST/NMI/SBWTDIO and TEST/SBWTCK pins. This interface is fully compatible with TI's MSP-FET debugger and Code Composer Studio IDE, enabling full-speed execution control, register inspection, and FRAM memory read/write during development. No external JTAG header is required, and SBW operates at all supported supply voltages. MSP430FR2475TRHBT also supports ROM-based bootloader (BSL) access for field firmware updates.

How many analog input channels does the MSP430FR2475TRHBT ADC support?

The MSP430FR2475TRHBT integrates a single 12-bit SAR analog-to-digital converter (ADC) with up to 12 configurable input channels. These channels map to dedicated analog pins (A0–A11) across multiple port groups, including P1.0 (A0/Veref+), P1.1 (A1), P1.2 (A2/Veref−), and others as defined in the SLASEO7C datasheet Table 7-1. The ADC supports sample rates up to 200 ksps and uses an internal shared reference (1.5 V, 2.0 V, or 2.5 V) - eliminating need for external reference components. MSP430FR2475TRHBT's ADC is fully functional in active and LPM0–LPM3 modes.

What is the FRAM endurance rating for the MSP430FR2475TRHBT?

The MSP430FR2475TRHBT features ferroelectric RAM (FRAM) with a guaranteed endurance of 10¹⁵ write cycles per memory location - exceeding flash by nine orders of magnitude. This enables continuous data logging, frequent configuration updates, and robust firmware-over-the-air (FOTA) operations without wear leveling. FRAM retains data for ≥10 years at 85°C and exhibits radiation tolerance and magnetic immunity. MSP430FR2475TRHBT's FRAM is protected by built-in error correction code (ECC) and configurable write protection to prevent accidental corruption.

Is the MSP430FR2475TRHBT pin-compatible with other devices in the FR247x family?

Yes, the MSP430FR2475TRHBT is pin-compatible with the MSP430FR2476TRHBT in the same 40-pin VQFN (RHA) package - sharing identical pin functions, electrical characteristics, and footprint. However, it is not pin-compatible with the 48-pin LQFP (PT) or 32-pin VQFN (RHB) variants due to differing pin counts and signal allocations. All RHA-package FR247x devices (MSP430FR2475TRHBT and MSP430FR2476TRHBT) support drop-in replacement within the same package variant. MSP430FR2475TRHBT's pinout matches TI's SLASEO7C Figure 7-2 exactly.

MSP430FR2475TRHBT 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:

MSP430FR2475TRHBT FAQ

1.How can I place an order for MSP430FR2475TRHBT through Aetrix?

Please submit a Request for Quotation (RFQ) for MSP430FR2475TRHBT 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 MSP430FR2475TRHBT reliable?

The price and inventory of MSP430FR2475TRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2475TRHBT is usually 5 days.

3.What payment methods are accepted for MSP430FR2475TRHBT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2475TRHBT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MSP430FR2475TRHBT?

MSP430FR2475TRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MSP430FR2475TRHBT 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 MSP430FR2475TRHBT?

For technical support, including MSP430FR2475TRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2475TRHBT requirements.

6.How does Aetrix verify that MSP430FR2475TRHBT is sourced from the original manufacturer or authorized distributors?

All MSP430FR2475TRHBT 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 MSP430FR2475TRHBT meets industry standards.

7.What is the process for return or replacement of MSP430FR2475TRHBT?

All MSP430FR2475TRHBT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2475TRHBT, 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 MSP430FR2475TRHBT part is unused and in its original packaging.

Return procedure for MSP430FR2475TRHBT:

1.Submit a request within 90 days.

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

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