Clock switching circuit, chip and terminal

The invention relates to the field of clock circuits, and discloses a clock switching circuit, a chip and a terminal. The device comprises a frequency division module, a first selection module, a second selection module, a logic selection module and a third selection module. The frequency division module can perform frequency division on the clock signal to be subjected to frequency division, can select corresponding frequency division signal output according to different clock signals in cooperation with the first selection module and the second selection module, and can perform frequency division on the clock signal to be subjected to frequency division in cooperation with the logic selection module and the third selection module. When frequency division signals respectively output by the first selection module and the second selection module are switched back and forth, the logic selection module can enable the third selection module to take the clock signal output by the first selection module as a refere