Texas Instruments MSP430F5247IRGCT

Overview

MSP430F5247IRGCT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 64 KB flash, 8 KB RAM, four 16-bit timers (TA0/TA1/TA2/TB0), dual USCI modules (UART/IrDA/SPI/I²C), 10-bit ADC with 12 channels (10 external + 2 internal), RTC, hardware multiplier, and 3-channel DMA. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and data loggers requiring sub-2 µA standby current.

For engineers reviewing the MSP430F5247IRGCT datasheet, MSP430F5247IRGCT pinout, MSP430F5247IRGCT application, or MSP430F5247IRGCT equivalent, key selection criteria include its 64-pin VQFN package, 53 GPIOs, integrated ADC with external reference support, RTC alarm capability, and LPM4.5 shutdown mode at 0.18 µA - critical for multi-year energy harvesting deployments.

Technical Context

The MSP430F5247IRGCT implements a unified clock system with FLL-based frequency stabilization, dual crystal oscillators (XT1 for 32 kHz, XT2 up to 32 MHz), and low-power internal sources (VLO, REFO). Its power management includes an integrated LDO with programmable core voltage and brownout detection.

It features three Timer_A modules (5/3/3 capture/compare registers) and one Timer_B (7 shadow registers), enabling simultaneous PWM generation, input capture, and RTC calendar functions. The two USCI peripherals support concurrent UART/IrDA/SPI on USCI_A and I²C/SPI on USCI_B - essential for multi-sensor interface consolidation.

Key Specifications

Pinout & Package

VQFN-64 (RGC) package with exposed thermal pad (recommended connection to DVSS). Pin count: 64, body size: 9 mm × 9 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5249IRGCT, the MSP430F5247IRGCT offers identical low-power performance and peripheral integration at lower flash cost; versus MSP430F5237IRGCT, it adds full 10-bit ADC functionality - making it the optimal balance of analog capability, memory, and power efficiency for mixed-signal edge devices.

Availability

MSP430F5247IRGCT is available at Aetrix Electronics and suitable for wireless sensor nodes, portable data loggers, smart meter interfaces, and industrial condition monitors requiring stable component supply and long-term production continuity.

Supply support for MSP430F5247IRGCT 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 MSP430F5247IRGCT belongs to TI's ultra-low-power microcontroller product line, designed specifically for extended-battery-life applications in sensing, measurement, and portable instrumentation where energy efficiency and integrated analog peripherals are critical.

FAQ

What is the maximum operating frequency of the MSP430F5247IRGCT?

The MSP430F5247IRGCT supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization. This frequency is confirmed in the device's functional block diagram and electrical specifications table. The DCO can be locked to external crystals (XT2 up to 32 MHz) or internal references, and the MSP430F5247IRGCT maintains full peripheral operation-including ADC sampling and USCI communication-at this speed under recommended operating conditions.

Does the MSP430F5247IRGCT include an integrated ADC, and what are its key parameters?

Yes, the MSP430F5247IRGCT integrates a 10-bit successive-approximation ADC (ADC10_A) with 200 ksps maximum sampling rate, 12 input channels (10 external analog inputs + 2 internal references), and built-in sample-and-hold. It supports internal reference voltages (1.5 V or 2.5 V) or external reference inputs (VeREF+ and VeREF− on P5.0/P5.1), enabling precision measurements across varying supply conditions. These specifications are explicitly defined in the Device Comparison table and Section 8.35–8.37 of the datasheet.

What low-power modes does the MSP430F5247IRGCT support, and what are their typical currents?

The MSP430F5247IRGCT supports five low-power modes: LPM0–LPM4 and LPM4.5. Key currents include 1.9 µA in LPM3 (RTC + crystal active), 1.1 µA in LPM4 (full RAM retention), and 0.18 µA in LPM4.5 (shutdown with reset retention). All values are measured at 3.0 V unless otherwise specified and are documented in Section 8.5 of the datasheet. Wake-up from LPM3 occurs in 3.5 µs, enabling rapid response to external events while preserving energy.

How many I/O pins are available on the MSP430F5247IRGCT in its VQFN-64 package?

The MSP430F5247IRGCT in the VQFN-64 (RGC) package provides 53 general-purpose I/O pins, distributed across ports P1–P7 and PJ. This count excludes power, ground, reset, test, and crystal pins. Pin configuration details-including alternate functions like USCI, timer, and ADC inputs-are fully mapped in Figure 7-1 and Section 7.1 of the datasheet. All 53 pins support interrupt capability and configurable drive strength.

Is the MSP430F5247IRGCT pin-compatible with other devices in the MSP430F52xx family?

Yes, the MSP430F5247IRGCT shares identical pinout and package (VQFN-64 RGC) with MSP430F5249IRGCT, MSP430F5239IRGCT, and MSP430F5237IRGCT. Functional differences exist-such as ADC presence or flash size-but mechanical and electrical pin assignments (including power, I/O, crystal, and debug signals) are fully aligned. This allows direct PCB reuse across these variants, simplifying design scalability and migration paths within the same package footprint.