Data transmission method and device, SOC chip, electronic component and electronic equipment

The invention relates to the technical field of data processing, provides a data transmission method and device, an SOC chip, an electronic component and electronic equipment, and aims to give consideration to the data transmission rate and the data transmission power consumption during cross-clock domain data transmission. The data transmission method comprises the following steps: counting the number of available cache units of a first asynchronous processing module once every N first clock periods; the number of available cache units of a second asynchronous processing module is counted once every M second clock cycles, the first asynchronous processing module is used for caching data transmitted from the first clock domain to the second clock domain, and the second asynchronous processing module is used for caching data transmitted from the second clock domain to the first clock domain; and adjusting the clock frequency of the second clock domain according to the number of available cache units of the fir