Systems and methods for plate voltage regulation during memory array access
View Patent ↗A memory device may include a memory array comprising at least two sections. Each of the sections may further include multiple memory cells. The memory device may also include one or more controllers designed to receive one or more commands to initiate writing logical data to the multiple memory cells of a first section and a second section. Additionally, the writing may alternate between the first section and the second section until the first section and second section have been entirely written with the logical data.
1. A system comprising:
a controller; and
a memory device communicatively coupled to the controller, wherein the memory device comprises:
a memory array comprising a plurality of wordlines; and
a command controller configured to receive a Fast Zero command from the controller and facilitate writing physical zeros to the entirety of at least one of the plurality of wordlines of a standard polarity section and writing physical ones to the entirety of at least one of the plurality of wordlines of an inverted polarity section, wherein the standard polarity section and the inverted polarity section share a capacitor plate.
2. The system of claim 1 , wherein a time between writing to the standard polarity section and the inverted polarity section is short enough to facilitate a first voltage demand corresponding to the writing to the standard polarity section to be combined with a second voltage demand corresponding to the writing to the inverted polarity section.
3. The system of claim 2 , wherein combining the first voltage demand and the second voltage demand causes a reduction in a current demand to the capacitor plate.
4. The system of claim 1 , wherein the memory device comprises one or more counters configured to generate internal memory addresses to sequentially access the plurality of wordlines.
5. The system of claim 1 , wherein four of the plurality of wordlines are accessed and written to simultaneously.
6. A method, comprising:
in response to the assertion of a command by a controller, accessing a plurality of wordlines of a memory array;
writing, using a command controller, logical zeros to a first set of the plurality of wordlines, causing a first voltage demand, wherein the first set of the plurality of wordlines is on a non-inverted section; and
writing, using the command controller, logical zeros to a second set of the plurality of wordlines, causing a second voltage demand, wherein the second set of the plurality of wordlines is on an inverted section, wherein a time between writing to the first set of the plurality of wordlines and the second set of the plurality of wordlines is short enough for the second voltage demand to cancel, at least partially, the first voltage demand.
7. The method of claim 6 , comprising regulating a plate voltage in response to the first voltage demand and the second voltage demand using plate voltage regulators dedicated for a Fast Zero mode.
8. The method of claim 6 , comprising alternating between wordlines of the inverted section and wordlines of the non-inverted section until all wordlines of both the inverted section and the non-inverted section have been written with logical zeros.
9. The method of claim 6 , wherein the time between writing is approximately zero, and the first set of the plurality of wordlines is written simultaneously with the second set of the plurality of wordlines.
10. The method of claim 6 , wherein the non-inverted section and the inverted section share a capacitor plate.