Texas Instruments MSP430F2471TRGCR

Overview

MSP430F2471TRGCR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 32KB+256B flash memory, 4KB RAM, a 16-bit Timer_B with seven capture/compare registers and shadow registers, four USCI modules (two UART/IrDA/SPI, two SPI/I²C), and on-chip comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430F2471TRGCR datasheet, MSP430F2471TRGCR pinout, MSP430F2471TRGCR application, or MSP430F2471TRGCR equivalent, key selection criteria include its 64-pin QFN package, absence of ADC12 (per F24x1 family designation), ultra-fast wake-up (<1 µs), and dual USCI_A/USCI_B interface support for concurrent serial protocols.

Technical Context

The MSP430F2471TRGCR implements a 16-bit CPU with constant generators and hardware multiplier for efficient code execution. Its basic clock system integrates a calibrated DCO (±1% accuracy at 1 MHz, 3 V), internal LF oscillator, and support for external crystals (XT1: 32 kHz, XT2: up to 16 MHz).

It features two independent universal serial communication interfaces (USCI_A0/A1 for UART/IrDA/SPI; USCI_B0/B1 for SPI/I²C), enabling simultaneous asynchronous and synchronous communication. The device lacks ADC12 functionality per F24x1 family specification but retains full Timer_B7, Comparator_A+, and SVS/SVM monitoring capabilities.

Key Specifications

Pinout & Package

Package: 64-pin QFN (RGC), 9 mm × 9 mm, 0.5 mm pitch, thermal pad (DVSS-connected). Pin count and I/O mapping match MSP430F24x family specifications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F247TRGCR, the MSP430F2471TRGCR removes ADC12 to reduce cost and power while retaining full timer, comparator, and dual-USCI capability; versus MSP430F2491TRGCR, it trades flash capacity for lower unit cost in fixed-function deployments.

Availability

MSP430F2471TRGCR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable gas detectors, smart utility meter interfaces, and industrial remote I/O modules requiring stable component supply and long-term manufacturability.

Supply support for MSP430F2471TRGCR 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 decades of microcontroller innovation.

The MSP430F2471TRGCR belongs to the MSP430F2xx ultra-low-power MCU product line, designed specifically for energy-constrained applications including battery-operated instrumentation, sensor systems, and portable measurement devices.

FAQ

What is the primary functional difference between MSP430F2471TRGCR and MSP430F247TRGCR?

The MSP430F2471TRGCR omits the ADC12 module present in the MSP430F247TRGCR, making it a comparator-only analog interface device. All other peripherals-including Timer_B7, dual USCI_A/USCI_B, Flash/RAM size, and package-are identical. This distinction reduces cost and power consumption where high-resolution analog-to-digital conversion is unnecessary.

Does MSP430F2471TRGCR support crystal oscillators for precise timing?

Yes, MSP430F2471TRGCR supports two crystal oscillator inputs: XT1 (32 kHz watch crystal on XIN/XOUT) for low-frequency timing and XT2 (up to 16 MHz on XT2IN/XT2OUT) for high-speed system clocking. Both are fully integrated into the basic clock module and can drive MCLK, SMCLK, or ACLK independently.

What debug interface does MSP430F2471TRGCR use, and is external hardware required?

MSP430F2471TRGCR uses standard 4-wire JTAG (TCK, TMS, TDI, TDO) for debugging and programming. External hardware such as the MSP-FET430UIF is required for full emulation; however, the integrated BSL enables UART-based firmware updates without additional tools.

Can MSP430F2471TRGCR operate from a single 1.8 V supply, and what are the implications?

Yes, MSP430F2471TRGCR operates across 1.8 V to 3.6 V. At 1.8 V, maximum CPU frequency is reduced to ~1 MHz, but all peripherals remain functional. This enables direct connection to low-voltage batteries or energy-harvesting sources without regulators-critical for ultra-low-energy designs.

How many USCI modules does MSP430F2471TRGCR integrate, and what protocols do they support?

MSP430F2471TRGCR integrates four USCI modules: USCI_A0 and USCI_A1 support UART, IrDA, and SPI; USCI_B0 and USCI_B1 support SPI and I²C. This enables concurrent operation-for example, UART Modbus on A0 and I²C sensor interface on B0-without resource contention.