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Hello everyone, in this lesson we will talk about the meaning of the clock often mentioned in the circuit

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The clock signal is one of the basic working conditions of the chip

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Its function is to make each chip work in unison

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It's like when everyone is playing a two-person three-legged game, they often shout the slogan 121

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If there is no such slogan, there is a high probability of wrestling

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The clock signal is equivalent to the slogan in the circuit

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If there is no clock signal, there is no way for two connected devices to work synchronously

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The unit of the clock signal is hertz, which refers to the number of periodic fluctuations per second

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For example, the right figure, this is a clock signal

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Commonly used units for clock signals are KHz and MHz.

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The frequency of the clock is generally not fixed,

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and there are different clock frequencies in different circuits

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For example, the most common 32.768KHz and 24MHz