Cascade structure circuit and method for realizing data sorting

The invention provides a cascade structure circuit and a method for realizing data sorting. The cascade structure circuit comprises an input interface and a cascade array composed of n sorting units CEi; the data output and enabling output of the CEi are connected with the data input and enabling input of CEi+1; the data output and enabling output of the first sequencing unit CE0 are respectively connected to the data input and data enabling input of a sorting circuit. The circuit structure is simple, occupies less resources, additional hardware circuit is not needed for finishing logic sequencing after data comparison, and data sequencing can be performed with no need for waiting for finishing all data processing.