MSP430F67491IPEU

Updated: 2026-09-18

Overview

The MSP430F67491IPEU is a member of Texas Instruments' MSP430 family of ultra-low-power microcontrollers. It combines a 16-bit RISC CPU with integrated analog and digital peripherals, making it suitable for a wide range of embedded applications. The device is designed for energy-efficient operation, which is critical in battery-powered and energy-sensitive systems. With its robust architecture and versatile peripheral set, the MSP430F67491IPEU is commonly used in industrial automation, medical devices, and smart metering applications. Its low power consumption and high integration reduce system complexity and BOM costs.

Structure and Working Principle

The MSP430F67491IPEU features a 16-bit CPU with a von Neumann architecture, offering efficient data and instruction handling. It includes multiple clock sources, such as a low-power internal oscillator and a high-frequency crystal oscillator, enabling flexible power management. Key peripherals include ADC, DAC, timers, communication interfaces (UART, SPI, I2C), and GPIO ports. The microcontroller operates on a wide voltage range (1.8V to 3.6V), supporting various power modes to optimize energy usage. Its interrupt-driven design ensures responsive real-time operation.

Key Features

One of the standout features of the MSP430F67491IPEU is its ultra-low-power consumption, with active modes as low as 160 µA/MHz and standby currents below 1 µA. This makes it ideal for battery-operated and energy-harvesting applications. The microcontroller also includes a high-resolution ADC (up to 24-bit sigma-delta) for precision measurement tasks. Its integrated LCD controller simplifies human-machine interface designs, while hardware accelerators enhance cryptographic and math operations.

Application Areas

The MSP430F67491IPEU is widely used in industrial automation for sensor nodes, motor control, and monitoring systems. Its precision analog capabilities make it suitable for medical devices like portable diagnostic equipment and patient monitors. In consumer electronics, it powers wearable devices, smart home products, and remote controls. The energy metering sector benefits from its accuracy and low-power operation in smart meters and sub-metering applications.

Maintenance and Precautions

To ensure reliable operation, follow ESD precautions during handling and assembly. The MSP430F67491IPEU is sensitive to electrostatic discharge, so use grounded workstations and antistatic packaging. Adhere to voltage and temperature limits specified in the datasheet. Proper PCB layout, including decoupling capacitors and minimal trace lengths for high-speed signals, is critical for noise immunity and signal integrity.

B2B Procurement Guide

When procuring the MSP430F67491IPEU, verify the supplier's authenticity to avoid counterfeit parts. Authorized distributors like Digi-Key, Mouser, and Texas Instruments' direct channels are recommended. Consider lead times and minimum order quantities (MOQs), especially for large-scale projects. Evaluate the availability of development tools, such as evaluation kits and software libraries, to streamline design and testing.