Apparatus and associated method for asymmetric write current compensation
for resistive sense memory (RSM) cells, such as but not limited to
spin-torque transfer random access memory (STRAM) or resistive random
access memory (RRAM) cells. In accordance with some embodiments, an RSM
cell includes an RSM element coupled to a switching device. The switching
device has a plurality of terminals. A control circuit compensates for
asymmetric write characteristics of the RSM cell by limiting a range of
voltage differentials across the terminals so as to be equal to or less
than a magnitude of a source voltage applied to the switching device,
thereby providing bi-directional write currents of substantially equal
magnitude through the RSM element.