In a magnetic random access memory, a memory cell includes a magnetic
field generating section having an extension wiring line, and connected
with a first selected bit line, a conductive pattern, and a magnetic
resistance element having a spontaneous magnetization, storing a data and
connected between the extension wiring line and the conductive pattern.
In a data write operation into the memory cell, a write data is written
in the magnetic resistance element of the memory cell by a write electric
current which flows through the extension wiring line of the magnetic
field generating section of the memory cell, and a value of the write
data is determined based on a direction of the write electric current. In
a data read operation from the memory cell, a read electric current flows
through the extension wiring line of the magnetic field generating
section and the magnetic resistance element in the memory cell. A memory
cell array section includes the memory cells arranged in a matrix, and
each memory cell is connected with a first word line and a first bit line
at least, the gate section.