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This report describes the factors that influence achievable accuracy of the low-frequency oscillator, specifically for real-time clock (RTC) applications. The intent of this application report is to provide an understanding of factors specific to MSP430 microcontrollers (MCUs) that influence real-world achievable RTC accuracy using the LFXT1 oscillator with a standard 32.768-kHz watch crystal and present measurement data supporting the achievable performance.

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