Data transformer apparatus comprising at least a dispatcher module (D), a reader module (R), a converter module (C) and a writer module (W). The dispatcher module (D) is configured to: receive a data transformation request (DTR) including: a first information item (X1) associated to a memory address where data to be transformed (Data1) are stored and to a type attribute (T) of said data to be transformed (Data1); a second information item (X2) indicating a memory address where transformed data (Data2), obtained from said data to be transformed (Data1), have to be written. The reader module (R) is configured to: retrieve the data to be transformed, according to said first information item (X1); obtain the type attribute (T) of the data to be transformed (Data1), based on said first information item (X1); send the data to be transformed (Data1) and the type attribute (T) thereof to the converter module (C). The converter module (C) is configured to: select one or more transformation instructions (INST) based on said type attribute (T); execute, on the data to be transformed (Data1), the selected one or more transformation instructions (INST), thereby obtaining the transformed data (Data2); send the transformed data (Data2) to the writer module (W). The writer module (W) is configured to: receive the transformed data (Data2) from the converter module (C); write the transformed data (Data2) in an output buffer according to said second information item (X2).