Texas Instruments MSP430F5239IRGCR

Overview

MSP430F5239IRGCR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller in the MSP430F523x series, designed for battery-powered sensor and data-logging applications. It features 128 KB flash, 8 KB RAM, four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (UART/IrDA/SPI/I²C), RTC, hardware multiplier, and 53 GPIOs - all operating from 1.8 V to 3.6 V with standby current as low as 1.9 µA.

For engineers reviewing the MSP430F5239IRGCR datasheet, MSP430F5239IRGCR pinout, MSP430F5239IRGCR application, or MSP430F5239IRGCR equivalent, key selection criteria include its absence of integrated ADC (distinguishing it from F524x variants), VQFN-64 package compatibility, RTC+DMA support for time-stamped sensing, and ultra-low-power LPM3/LPM4 operation critical for multi-year battery life in remote monitoring systems.

Technical Context

The MSP430F5239IRGCR implements a unified clock system with FLL-based frequency stabilization, dual crystal support (XT1 for 32-kHz RTC, XT2 up to 32 MHz), and internal sources (VLO, REFO). Its power management includes an integrated LDO with programmable core voltage and brownout detection across multiple supply domains (DVCC, AVCC, VCORE).

It executes code from flash or RAM with active-mode current of 290 µA/MHz (flash) and 150 µA/MHz (RAM) at 8 MHz/3.0 V, and wakes from LPM3 in 3.5 µs (typical) - enabling rapid response to external events while maintaining sub-2-µA real-time clock operation.

Key Specifications

Pinout & Package

VQFN-64 (RGC) package, 9 mm × 9 mm, with exposed thermal pad recommended to be connected to DVSS.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.

Compared with MSP430F5237IRGCR, the MSP430F5239IRGCR provides 2× flash capacity for complex firmware or future updates; versus MSP430F5249IRGCR, it eliminates ADC-related design complexity, layout area, and calibration overhead where analog sensing is handled externally.

Availability

MSP430F5239IRGCR is available at Aetrix Electronics and suitable for wireless sensor nodes, energy metering systems, and industrial data loggers requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for MSP430F5239IRGCR 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 company delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The MSP430F5239IRGCR belongs to TI's MSP430F523x ultra-low-power MCU family, engineered specifically for extended-battery-life applications where RTC, DMA, and multi-interface connectivity are essential - but on-chip analog-to-digital conversion is unnecessary.

FAQ

What is the maximum system clock frequency supported by the MSP430F5239IRGCR?

The MSP430F5239IRGCR supports a maximum system clock frequency of 25 MHz, achieved using the FLL with XT2 (high-frequency crystal oscillator) up to 32 MHz or internal DCO calibration. This enables high-speed peripheral operation and efficient instruction throughput while maintaining ultra-low-power architecture benefits.

Does the MSP430F5239IRGCR include an integrated analog-to-digital converter (ADC)?

No, the MSP430F5239IRGCR does not include an integrated ADC. It belongs to the MSP430F523x series, which omits the ADC10_A module present in the F524x series. Applications requiring analog signal conversion must use external ADCs or select an F524x variant like MSP430F5249IRGCR.

What package type and pin count does the MSP430F5239IRGCR use?

The MSP430F5239IRGCR uses a 64-pin VQFN package (RGC variant), measuring 9 mm × 9 mm with an exposed thermal pad. This package is shared across the F5239/F5237/F5249/F5247 devices and supports high I/O density (53 GPIOs) in a compact, thermally efficient footprint.

How does the power management system of the MSP430F5239IRGCR reduce system-level BOM cost?

The MSP430F5239IRGCR integrates a fully regulated LDO with programmable VCORE, eliminating the need for external DC/DC converters or LDOs. Combined with internal VLO, REFO, and FLL-based clock synthesis, it reduces external passive components and simplifies power tree design - lowering total solution cost and PCB area.

Can the MSP430F5239IRGCR operate from a single 2.0-V supply without performance degradation?

Yes, the MSP430F5239IRGCR operates across 1.8 V to 3.6 V. At 2.0 V, it maintains full functionality including 25-MHz-capable FLL, RTC, DMA, and all timers - though maximum achievable MCLK is reduced per datasheet curves. Active-mode current remains proportional (e.g., ~230 µA/MHz at 2.0 V), preserving ultra-low-power advantage.