Patent ID: 7057925

Claim:
A thin film magnetic memory device, comprising: a plurality of memory cells each being magnetized along an easy axis in a direction corresponding to storage data magnetically written therein, and each having an electric resistance corresponding to a magnetization direction; a data line that is electrically coupled to a fixed voltage through a selected memory cell of said plurality of memory cells in read operation; a current supply circuit for coupling said data line to a prescribed voltage at least in said read operation; a magnetic field applying section for receiving a first power supply voltage and applying a predetermined magnetic field along a hard axis to a selected memory cell of said plurality of memory cells at least in write operation; and a data read circuit receiving a second power supply voltage and said fixed voltage and producing read data corresponding to storage data of said selected memory cell, wherein a difference between said first power supply voltage and said fixed voltage is larger than a difference between said second power supply voltage and said fixed voltage.