32.768K Crystal Oscillator Function

    Uses: Generally used for timing. (time base)

    To be precise, clock frequency is a very important concept. If the system uses an external crystal oscillator and is based on an external crystal oscillator, there are two frequency multiplication or frequency division methods that can help us obtain other clock frequencies.

    In clock systems, the second is an important unit of time, and one second is exactly 1 Hz. If you want to improve the time accuracy, then this 1Hz must be accurate.

    We know that in the digital world, there are only two possibilities for binary: 0 and 1. Let's look at a calculation:

    2^15=32768=32.768K

    2 to the 15th power is exactly equal to 32768. On the other hand, if you divide the clock frequency of 32.768K by a factor of 15, you get a frequency of exactly 1Hz, which is exactly 1 second, allowing you to calculate time.

    32.768K crystal oscillator is widely used in clocks, computer motherboard timing, and other circuits with timing needs.

    How important is 32.768K crystal oscillator to life?

    Since ancient times, people's records of time have been based on reference objects. The commonly used time units in life are: seconds s, minutes min, hours h, days d. If there is no definition of time, then the world stops and is empty.

    In modern times, we can't live without the clock, 32.768KHZ is a meaningful number, but we need it every day, and it brings us too many benefits.

    Whether it's a smartphone, a tablet, or a smartwatch, you can see that the clock is always ticking, second by second, slowly and regularly. Why can all clocks keep the same frequency, go every second, and not every second go faster or slower?

    Mainly 32768 is equal to 2 to the 15th power, which is 1 second. The clocks that display functions on our daily watches, mobile phones, and computers are evolved from it.