Semiconductor device and method of generating random data

A semiconductor device, comprising:

• a memory cell array comprising a plurality of memory cells arranged in column and row lines;
• page buffers coupled to column lines of the memory cell array;
• a first operation circuit configured to generate addition data by adding a column address and a page address and output, as seed data, a remainder obtained by dividing the addition data by a set value;
• a mask data output circuit configured to output mask data corresponding to the seed data;
• a second operation circuit configured to generate a random data by performing a second logic operation on the mask data and on program data corresponding to the column and page addresses;
• and
• a column selector configured to transfer the random data to the page buffers in response to the column address.

A method of operating a semiconductor device, comprising:

• adding a column address and a page address;
• generating seed data using a remainder obtained by dividing the added value by a set value;
• outputting mask data corresponding to the seed data;
• generating random data by performing a logic operation on the mask data and on program data corresponding to the column and page addresses;
• and
• performing a program operation using the random data.