A semiconductor device employs a technology for improving data retention characteristics of a cell array storing data regarding conditions for controlling internal operations of the semiconductor device. The semiconductor device includes a content addressable memory (CAM) cell array configured to store CAM data regarding conditions for controlling the internal operations, a control logic configured to store the CAM data read out of the CAM cell array, and a microprocessor configured to perform a reprogramming operation on the CAM cell array using the CAM data stored in the control logic.