Texas Instruments MSP430FR2475TRHAT

Overview

MSP430FR2475TRHAT 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 10 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 MSP430FR2475TRHAT datasheet, MSP430FR2475TRHAT pinout, MSP430FR2475TRHAT application, or MSP430FR2475TRHAT equivalent, this page provides verified package mapping (40-pin VQFN-RHA), confirmed low-power mode specs (660 nA RTC standby), validated peripheral configurations (eUSCI_A0/A1, eUSCI_B0/B1, Timer_A3/Timer_B7), and real-world use-case constraints including extended –40°C to 105°C operation.

Technical Context

The MSP430FR2475TRHAT integrates a digitally controlled oscillator (DCO) with FLL, ±1% accuracy at room temperature using on-chip reference, and dual crystal support (LFXT for 32 kHz RTC, MODOSC for high-frequency modulation). Its clock system enables sub-10 µs wake-up from LPM3.5 while maintaining real-time counter functionality.

It implements four 16-bit Timer_A modules (each with three capture/compare registers) and one 16-bit Timer_B (with seven capture/compare registers), all supporting PWM, input capture, and period measurement. The enhanced comparator (eCOMP) includes programmable hysteresis and configurable high-/low-power modes, directly interfacing with internal 1.5/2.0/2.5 V references and a 6-bit DAC.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FR2475TRHAT, the MSP430FR2476TRHAT offers double FRAM and +2 KB RAM with zero hardware changes, while the MSP430FR2355TRHAT reduces cost and complexity at the expense of timer flexibility and ADC channel count - making each suitable for distinct firmware scalability and analog I/O requirements.

Availability

MSP430FR2475TRHAT is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, and battery-powered thermostats requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for MSP430FR2475TRHAT 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 mixed-signal integration.

The MSP430FR247x family targets ultra-low-power sensing and measurement applications, combining FRAM nonvolatility with holistic power architecture to extend battery life in compact, thermally constrained environments.

FAQ

What is the maximum operating frequency of the MSP430FR2475TRHAT?

The MSP430FR2475TRHAT 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 –40°C to +105°C temperature range, with ±1% accuracy at room temperature using the on-chip reference. The MSP430FR2475TRHAT does not require external crystals for core operation, though LFXT supports RTC functionality.

How many ADC input channels does the MSP430FR2475TRHAT support?

The MSP430FR2475TRHAT integrates a 12-bit SAR ADC supporting 10 analog input channels. This is confirmed in Table 6-1 (Device Comparison) and Section 1 Features, distinguishing it from the 48-pin TPT variant (12 channels) and the 32-pin RHB variant (8 channels). All 10 channels are accessible on the 40-pin RHA package, mapped to pins including P1.0–P1.7, P4.3–P4.4, and P5.3–P5.4.

Does the MSP430FR2475TRHAT include hardware error correction for FRAM?

Yes, the MSP430FR2475TRHAT includes built-in hardware error correction code (ECC) for its FRAM memory. As stated in Section 1 Features, this ECC protects against single-bit errors and detects double-bit errors in both program and information FRAM segments. This capability is inherent to the FRAM controller and requires no software overhead, ensuring data integrity in mission-critical logging applications.

What debug interface does the MSP430FR2475TRHAT use?

The MSP430FR2475TRHAT uses the Spy-Bi-Wire (SBW) interface for programming and debugging, implemented on two pins: RST/NMI/SBWTDIO (Pin 2) and TEST/SBWTCK (Pin 3). This 2-wire interface is fully compatible with TI's MSP-FET and LaunchPad debuggers, and supports full-speed emulation, flash programming, and real-time register inspection without requiring a full 4-pin JTAG header.

Is the MSP430FR2475TRHAT pin-compatible with other devices in the FR247x family?

Yes, the MSP430FR2475TRHAT is pin-compatible with the MSP430FR2476TRHAT in the same 40-pin VQFN (RHA) package - sharing identical pin count, mechanical footprint, and signal assignments. However, it is not pin-compatible with the 48-pin TPT or 32-pin RHB variants due to differing pin counts and I/O allocations, as documented in Table 6-1 and Figures 7-1 through 7-3.