Patent ID: 6646911
Filing Date: 2003-11-11
Classification: G11C

Abstract:
A thin film magnetic memory device comprising:a plurality of memory cells each executing data storage; and a plurality of data lines arranged according to predetermined segments of said plurality of memory cells, respectively, wherein each of said plurality of memory cells includes a magnetic storage portion having one of first and second electric resistances according to a level of stored data, and an access element electrically connected to said magnetic storage portion in series between corresponding one of said plurality of data lines and a first voltage, and selectively turned on, said thin film magnetic memory device further comprises: a current supply circuit supplying a current passing through said magnetic storage portion, said current supply circuit supplying a first constant current to at least one of said plurality of data lines in a normal operation mode, and supplying a second constant current higher than said first constant current, to at least one of said plurality of data lines in another operation mode.