A magnetic random access memory having a memory cell array in which one block is formed from a plurality of magnetoresistive elements using a magnetoresistive effect, and a plurality of blocks are arranged in row and column directions, includes a plurality of first magnetoresistive elements arranged in a first block, a plurality of first word lines each of which is independently connected to one terminal of a corresponding one of the first magnetoresistive elements and runs in the row direction, a first read sub bit line commonly connected to the other terminal of each of the first magnetoresistive elements, a first block select switch whose first current path has one end connected to one end of the first read sub bit line, and a first read main bit line which is connected to the other end of the first current path and runs in the column direction.

 
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