Texas Instruments MSP430FR2476TPTR

Overview

MSP430FR2476TPTR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 64KB FRAM, 8KB 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 clock frequency, and delivers 135 µA/MHz active current - optimized for battery-powered industrial sensors and medical wearables.

For engineers reviewing the MSP430FR2476TPTR datasheet, MSP430FR2476TPTR pinout, MSP430FR2476TPTR application, or MSP430FR2476TPTR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 RTC operation at 660 nA, dual eUSCI_A/B modules supporting UART/I²C/SPI with pin remap, and 43 GPIOs with interrupt capability on LQFP-48 package.

Technical Context

The MSP430FR2476TPTR 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 radiation-resistant FRAM with built-in 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, enhanced comparator (eCOMP), and integrated 6-bit DAC for reference voltage generation - all accessible via 43 GPIOs on the LQFP-48 package with full pin-interrupt wake capability from all low-power modes.

Key Specifications

Pinout & Package

LQFP-48 package (7 mm × 7 mm) with exposed thermal pad; 48-pin footprint compatible with TI's MSP-TS430PT48A target board and LP-MSP430FR2476 LaunchPad™.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FR2475TPT, the MSP430FR2476TPTR provides double FRAM for extended data logging; versus MSP430FR2676IPTR, it offers identical memory and core performance in a smaller, lower-cost 48-pin package without touch hardware - ideal for compact, non-touch embedded sensors.

Availability

MSP430FR2476TPTR is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, and battery management units requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for MSP430FR2476TPTR 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 for industrial, automotive, and consumer markets.

The MSP430FR247x product line targets ultra-low-power sensing and measurement applications - designed to replace legacy flash-based MCUs with FRAM-enabled reliability, faster writes, and extended temperature operation up to +105°C.

FAQ

What is the maximum operating frequency of the MSP430FR2476TPTR?

The MSP430FR2476TPTR supports a maximum system clock frequency of 16 MHz, achieved via its on-chip digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This frequency is fully supported across the entire operating voltage range (1.8 V to 3.6 V) and temperature range (–40°C to +105°C), with ±1% accuracy at room temperature using the internal reference.

Does the MSP430FR2476TPTR include hardware error correction for FRAM?

Yes, the MSP430FR2476TPTR includes built-in hardware error correction code (ECC) for its 64KB FRAM array. ECC automatically detects and corrects single-bit errors during read operations and flags uncorrectable multi-bit errors - ensuring data integrity in mission-critical logging applications without software overhead.

Can the MSP430FR2476TPTR operate from a 1.8 V supply?

Yes, the MSP430FR2476TPTR is fully specified to operate from 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including 16 MHz DCO operation, 12-bit ADC conversion, and FRAM read/write - though minimum supply voltage is constrained by SVS (supply voltage supervisor) thresholds, which must be configured appropriately per application requirements.

How many ADC input channels does the MSP430FR2476TPTR support?

The MSP430FR2476TPTR integrates a 12-bit SAR ADC supporting up to 12 external analog input channels. Channel selection is programmable via the ADCCTL1 register, and inputs can be sourced from dedicated analog pins (e.g., A0–A11) or internal sources including temperature sensor and VREF outputs.

Is the MSP430FR2476TPTR pin-compatible with other devices in the MSP430FR247x family?

Yes, the MSP430FR2476TPTR in LQFP-48 (PT) package is pin-compatible with the MSP430FR2475TPT - sharing identical pin count, mechanical footprint, and signal mapping. This allows direct substitution in existing designs when increased FRAM (64KB vs. 32KB) and RAM (8KB vs. 6KB) are required without PCB revision.