Semiconductor device and method for driving the same

摘要

A semiconductor device has a memory cell array composed of a plurality of electrically rewritable nonvolatile memory cells and output disabling means for disabling data held in the memory cell array from being outputted to the outside. The output disabling means disables the outputting of the data when the power supply is turned ON and removes the disabling of the outputting of the data if a specified operational procedure is performed to the memory cell array.