Abstract: Techniques for controlling current through memory cells is disclosed. In the illustrative embodiment, a fine-grained current source and a coarse-grained current source can both be activated to perform an operation on a phase-change memory cell. The coarse-grained current source is briefly activated to charge up the capacitance of an electrical path through the memory cell and then turned off. The fine-grained current source applies a current pulse to perform the operation on the memory cell, such as a reset operation. By charging up the electrical path quickly with the coarse-grained current source, the fine-grained current source can quickly perform the operation on the memory cell, reducing the thermal disturbance caused by the operation on nearby memory cells.

Abstract: A method, apparatus and system. The method includes: generating a feedback voltage VFB in a feedback circuit coupled to one of a bitline node (BL) or a wordline node (WL) of each of a plurality of memory cells of a memory array, the feedback voltage to, in a thresholded state of said each of the memory cells, counteract a decrease in an absolute value of a voltage Vvdm at said one of the BL or WL; generating, in a reference circuit, one of a reference voltage VREF to track a feedback voltage of the feedback circuit or a mirror current IMFBmirror to track a current Icell through said each of the memory cells; and providing one of values for both VFB and VREF, or for an output voltage Vapsout corresponding to IMFBmirror, to a sense circuitry, the sense circuitry to determine a logic state of said each of the memory cells based on a comparison of VFB with VREF or based on Vapsout.

Abstract: Embodiments of bus circuits and related techniques are disclosed herein. In some embodiments, a bus circuit may include: a source follower arrangement, including a first transistor and a second transistor, coupled between a supply voltage and an access line of a memory cell, wherein the first transistor and the second transistor each have a gate terminal and wherein the access line is a bit line or a word line; a capacitor having a first terminal coupled to the gate terminal of the first transistor and having a second terminal coupled to a reference voltage; and a switch coupled between the first terminal of the capacitor and a voltage regulator. Other embodiments may be disclosed and/or claimed.

Abstract: Embodiments of bus circuits and related techniques are disclosed herein. In some embodiments, a bus circuit may include: a source follower arrangement, including a first transistor and a second transistor, coupled between a supply voltage and an access line of a memory cell, wherein the first transistor and the second transistor each have a gate terminal and wherein the access line is a bit line or a word line; a capacitor having a first terminal coupled to the gate terminal of the first transistor and having a second terminal coupled to a reference voltage; and a switch coupled between the first terminal of the capacitor and a voltage regulator. Other embodiments may be disclosed and/or claimed.