Charge pump supply oscillator
AssigneeMicron Technology, Inc.
InventorJohn E. Riley
Life of this patent
Estimating the term…
Abstract
A memory device includes a plurality of memory cells and first circuitry coupled the plurality of memory cells, wherein the first circuitry is configured to perform a memory operation on at least one memory cell of the plurality of memory cells. The memory device also includes a charge pump coupled to the first circuitry, wherein the charge pump comprises a pump oscillator configured to generate an oscillator signal having only pulses with a width above a predetermined threshold pulse width and a pump core configured to receive the oscillator signal and a first electrical power signal at a first voltage, generate a second electrical power signal at a second voltage based upon the oscillator signal and the first voltage.
Claims20
A memory device comprising:
- a plurality of memory cells;
- first circuitry coupled the plurality of memory cells, wherein the first circuitry is configured to perform a memory operation on at least one memory cell of the plurality of memory cells;
- and
- a charge pump coupled to the first circuitry, wherein the charge pump comprises:
- a pump oscillator configured to generate an oscillator signal having only pulses with a width above a predetermined threshold pulse width to prevent runt pulses in the oscillator signal;
- and
- a pump core configured to receive the oscillator signal and a first electrical power signal at a first voltage, generate a second electrical power signal at a second voltage based upon the oscillator signal and the first voltage.
A device, comprising:
- a pump controller configured to transmit a control signal;
- and
- a pump oscillator coupled to the pump controller, wherein the pump oscillator comprises:
- a mode transition control circuit comprising:
- a first input configured to receive a first oscillation signal having a first frequency;
- a second input configured to receive a second oscillation signal having a second frequency;
- and
- an output configured to provide a selection signal generated by the mode transition control circuit based upon the first oscillation signal and the second oscillation signal;
- a latching circuit coupled to the mode transition control circuit, wherein the latching circuit comprises:
- a third input configured to receive the control signal;
- a fourth input configured to receive the selection signal;
- and
- a second output configured to provide a latched mode enable signal generated by the latching circuit based upon the control signal and the selection signal;
- and
- an oscillation selection circuit coupled to the latching circuit, wherein the oscillation selection circuit comprises:
- a fifth input configured to receive the first oscillation signal;
- a sixth input configured to receive the second oscillation signal;
- a seventh input configured to receive the latched mode enable signal;
- and
- a third output configured to provide an oscillator signal generated by the oscillation selection circuit based upon the first oscillation signal, the second oscillation signal, and the latched mode enable signal.
A memory device comprising:
- a memory controller configured to generate a control signal indicative of a mode of operation of the memory device;
- and
- a memory bank coupled to the memory controller, wherein the memory bank comprises:
- a memory cell array configured to store data;
- circuitry coupled to the memory cell array and configured to perform or facilitate a memory operation of the memory cell array;
- and
- a charge pump coupled to the circuitry and the memory controller and configured to receive the control signal and provide an electrical power signal to the circuitry, wherein the charge pump comprises:
- a pump oscillator configured to generate an oscillator signal having only pulses with a width above a predetermined threshold pulse width to prevent runt pulses in the oscillator signal;
- and
- a pump core configured to receive the oscillator signal and generate the electrical power signal based in part upon the oscillator signal.
Dependencies are inferred from the claim text.