32.768KHz is a real-time clock crystal oscillator, which can generate timing circuit reference signal. The reason why we choose 32.768k is that it is the 15th power of 2, because we can get the timing of one second very accurately. Not only that, including all real-time clock crystal oscillator is generally 32.768 or its octave. The load capacitance of chip 32.768k crystal oscillator is 12.5pF. The commonly used 32.768k crystal oscillator electronic products include smart phones, smart watches, security and wearable devices, etc. There are also a lot of life, industrial electronics will also be commonly used to this frequency of imported crystal oscillator.