Patent ID: 7079414

Claim:
A magnetic random access memory device comprising: a memory cell array in which a plurality of memory cells two-dimensionally arranged in a row direction and a column direction and each composed of a magneto-resistive effect element; a plurality of first write lines each of which is provided along a row direction of the memory cell array and generates a magnetic field in a row direction of the memory cell array when a pulse-like first write current is applied to the plurality of first write lines along the row direction; a plurality of second write lines each of which is provided along a column direction of the memory cell array and generates a magnetic field in a column direction of the memory cell array when a pulse-like second write current is applied to the plurality of second write lines along the column direction of the memory cell array, data being written in each memory cell by applying a combined magnetic field of the magnetic field generated in the column direction and the magnetic field generated in the row direction; and a control circuit connected to the plurality of first and second write lines to control a dependence on temperature of a pulse width of at least one of the first write current and second write current.