FIELD: physics, computer engineering.
SUBSTANCE: invention relates to computer engineering. A method of forming an irreversible state in a single-bit cell, comprising applying programming voltage to a first magnetic tunnel junction (MTJ) of a single-bit cell without applying programming voltage to a second MTJ of the single-bit cell to form an irreversible state in the single-bit cell; and determining the irreversible state by comparing a first value read from the first MTJ and received at the first input of a differential amplifier with a second value read from the second MTJ and received at the second input of the differential amplifier, wherein the first value corresponds to the first voltage of a first bit line connected to the first MTJ, and the second value corresponds to the second voltage of a second bit line connected to the second MTJ.
EFFECT: enabling high-speed programming of a single-bit cell.
34 cl, 7 dwg
