Texas Instruments MSP430F5308IRGZT

Overview

MSP430F5308IRGZT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 16 KB flash, 6 KB RAM, dual USCI modules (UART/IrDA/SPI/I²C), 10-bit ADC with window comparator, RTC, four 16-bit timers, hardware multiplier, and integrated 3.3-V LDO. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and digital timers.

For engineers reviewing the MSP430F5308IRGZT datasheet, MSP430F5308IRGZT pinout, MSP430F5308IRGZT application, or MSP430F5308IRGZT equivalent, key selection criteria include standby current (1.9 µA @ 3 V), 48-pin VQFN package compatibility, dual-USCI interface flexibility, RTC alarm capability, and 31 GPIO count with port mapping control on P4.

Technical Context

The MSP430F5308IRGZT implements a unified clock system (UCS) with FLL stabilization, VLO and REFO internal sources, and support for 32-kHz XT1 and up to 32-MHz XT2 crystals. Its five low-power modes-including LPM3 (1.9 µA) and LPM4.5 (0.18 µA)-enable rapid wake-up (<5 µs) and extended battery life in portable measurement applications.

It features a programmable LDO core regulator, supply voltage supervision with brownout detection, and a port mapping controller that dynamically assigns USCI functions to P4 pins-allowing flexible UART, I²C, or SPI routing without hardware changes, though not all USCI signals can be active simultaneously in the 48-pin RGZ package.

Key Specifications

Pinout & Package

VQFN-48 (RGZ) package with 7 mm × 7 mm body size and exposed thermal pad requiring connection to DVSS for thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5308IRGZT, the MSP430F5309IRGZT and MSP430F5310IRGZT offer increased flash capacity (24 KB and 32 KB respectively) while maintaining identical package, pinout, power consumption, peripheral set, and operating voltage range-making them drop-in upgrades for firmware scalability without hardware modification.

Availability

MSP430F5308IRGZT is available at Aetrix Electronics and suitable for analog sensor systems, digital motor control, and remote controls requiring stable component supply across industrial and consumer design cycles.

Supply support for MSP430F5308IRGZT 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 emphasis on energy efficiency and reliability.

The MSP430F5308IRGZT belongs to TI's MSP430F5xx ultra-low-power microcontroller family, designed specifically for portable and battery-operated measurement applications where extended runtime and precision analog integration are critical.

FAQ

What is the maximum operating frequency of the MSP430F5308IRGZT?

The MSP430F5308IRGZT supports a maximum system clock frequency of 25 MHz, enabled by its digitally controlled oscillator (DCO) and FLL-based unified clock system. This allows high-speed instruction execution while maintaining ultra-low-power operation in active mode (195 µA/MHz at 8 MHz, 3 V). The device also supports lower-frequency crystal sources including 32-kHz XT1 for RTC and up to 32-MHz XT2 for high-speed peripherals.

Does the MSP430F5308IRGZT support hardware UART auto-baud rate detection?

Yes, the MSP430F5308IRGZT supports automatic baud-rate detection in enhanced UART mode via its USCI_A modules. This feature allows the MSP430F5308IRGZT to synchronize with incoming asynchronous serial data without prior knowledge of the transmitter's baud rate, simplifying interoperability in field-upgrade or multi-vendor communication scenarios.

How many I/O pins does the MSP430F5308IRGZT provide in the RGZ package?

The MSP430F5308IRGZT in the 48-pin VQFN (RGZ) package provides 31 general-purpose I/O pins. These include P1.x (8 pins), P2.x (8 pins), P3.x (5 pins), P4.x (5 pins), P5.x (2 pins), P6.x (3 pins), plus PU.0 and PU.1 - all configurable with interrupt capability, pull-up/down resistors, and port mapping for secondary functions.

Can the MSP430F5308IRGZT operate from a single 1.8-V supply?

Yes, the MSP430F5308IRGZT is fully specified to operate across a supply voltage range of 1.8 V to 3.6 V. Its integrated LDO regulator maintains stable core voltage down to 1.8 V, enabling direct use with single-cell Li-ion, Li-polymer, or two-cell alkaline batteries without external regulation - critical for compact, long-life portable designs.

Is the MSP430F5308IRGZT pin-compatible with other devices in the MSP430F53xx family?

Yes, the MSP430F5308IRGZT is pin-compatible with the MSP430F5309IRGZT and MSP430F5310IRGZT in the 48-pin VQFN (RGZ) package. All three share identical pin assignments, electrical characteristics, and peripheral mappings - allowing seamless migration between flash capacities (16 KB, 24 KB, 32 KB) without PCB layout changes.