Semiconductor module and semiconductor package

A semiconductor module includes: a control circuit for controlling first and second transistors operating complementarily; and an internal controller receiving a data signal including a set value of an operating characteristic from an external controller to store the data signal in a memory and then transferring the set value of the operating characteristic to the control circuit. The data signal is sent to the internal controller in the order of the set value of the operating characteristic and a specific trigger value. The internal controller transfers the set value of the operating characteristic to the control circuit in timed relation to writing of the specific trigger value into the memory. The control circuit includes first and second drivers. The control circuit changes settings of the first and second drivers to thereby change the operating characteristic of the semiconductor module.