Patent ID: 6512688
Filing Date: 2003-01-28
Classification: G11C

Abstract:
A magneto resistive memory, comprising:first switches; a word line voltage source generating a word line voltage connected to said first switches; a line node; second switches; cells formed of cell resistors each having a first terminal connected to the word line voltage through one of said first switches and a second terminal connected to said line node through one of said second switches; a reference resistor connected to said line node; a reference voltage source connected to said reference resistor, said reference resistor with said reference voltage source bringing about a reduction in a respective cell current, flowing from said line node, by an average current determined by a reference resistance of said reference resistor and a reference voltage of said reference voltage source; and a device connected to said line node and evaluating said cell resistors, said device having an amplifier for converting a difference between the respective cell current and the average current into a voltage functioning as an evaluation signal.