
Preliminar½
HT45FM2C
无刷直流电动机的Flash型8位MCU
20MHz的内部RC振荡器 - HIRC
内部RC振荡器是一个完全集成的系统振荡器,无需外部元件。
内部RC振荡器具有20MHz的固定频率。在设备微调
制造工艺和内部含有频率补偿电路被用来
确保了电源电压,温度和工艺变化的影响
oscillation frequency are minimised. As a result, at a power supply of 5V and at a temperature of
25C degrees, the fixed oscillation frequency of 20MHz will have a tolerance within 2%.
内部32kHz振荡器 - LIRC
The Internal 32kHz System Oscillator is a low frequency oscillator choice. It is a fully integrated
RC oscillator with a typical frequency of 32kHz at 5V, requiring no external components for its
实施。在制造过程中器件修整和内部含有
频率补偿电路,用于确保在电源电压的影响,
温度和工艺变化对振荡频率的最小化。其结果,在一
power supply of 5V and at a temperature of 25C degrees, the fixed oscillation frequency of 32kHz
will have a tolerance within 10%.
补充钟
低速振荡器,除了提供一个系统时钟源也可用于提供一个
时钟源到其他设备的功能。这些看门狗定时器和时基中断。
修订版1.10
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