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Why does SPMC65 family MCU select RC Oscillator as system clock source?

April 26, 2017clock family mcu oscillator RC select source spmc65 system

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Why does SPMC65 family MCU select RC Oscillator as system clock source?

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The RC circuit features simple structure and low cost. When using the RC Oscillator, SPMC65 family MCU can output oscillation signal in XO pin, which is synchronous and has the same oscillation frequency as that of the system. However the disadvantage is that the clock frequency generated by RC oscillation generates is not so precise so that it’s not suitable for the system with a high degree of timer accuracy.