Patent ID: 6493258
Filing Date: 2002-12-10
Classification: G11C

Abstract:
A magneto-resistive memory cell, comprising:a first magneto-resistive bit having a first end and a second end; a first bit line connected to the first end of the first magneto-resistive bit; first switching means coupled to the second end of the first magneto-resistive bit for selectively providing a path for a first sense current to flow from the first bit line, through at least part of the first magneto-resistive bit, and to a first predetermined voltage terminal that is coupled to ground; a second magneto-resistive bit having a first end and a second end; a second bit line connected to the first end of the second magneto-resistive bit; second switching means coupled to the second end of the second magneto-resistive bit for selectively providing a path for a second sense current to flow from the second bit line, through at least part of the second magneto-resistive bit, and to a second predetermined voltage terminal; and writing means for writing the first magneto-resistive bit into a different resistive state than the second magneto-resistive bit.