The MSP430FR6989IPNR is a 16-bit microcontroller (MCU) manufactured by Texas Instruments that is part of the company’s MSP430 family of ultra low power MCUs. This MCU is ideal for applications that require low power consumption and energy harvesting, such as those involving sensing and monitoring. It features many peripheral options, including a 12-bit analog-to-digital converter, watchdog timer, system control, and secure real-time clock. It also includes a selection of communication interfaces, such as I2C, SPI, UART, and USB. Additionally, the MSP430FR6989IPNR can allow for up to 16KB of system RAM, making it a powerful and versatile option for embedded systems.