Patent ID: 9524757
Filing Date: 2016-12-20
CPC Classification: G11C

Claim Text:
1. A data storage device comprising: a nonvolatile memory device; a controller suitable for reading data from and writing data to the nonvolatile memory device, wherein the controller comprises an input/output driver suitable for driving a control signal or data signal to be provided to the nonvolatile memory device; and a power management unit suitable for supplying power to the nonvolatile memory device, wherein the controller determines whether an operation related to sequential data or random data is requested, and controls the power management unit to adjust the power supplied to the nonvolatile memory device according to the determination result, wherein the controller sets a second voltage level corresponding to the first operation mode as a driving voltage level of the input/output driver, wherein the controller controls the power management unit to supply first power having a first voltage level to the nonvolatile memory device when the operation related to the sequential data is requested, wherein the controller sets an operation mode of the nonvolatile memory device such that the nonvolatile memory device operates in a first operation mode corresponding to the first power, and wherein the controller controls the power management unit to supply second power having a third voltage level lower than the first voltage level to the nonvolatile memory device when the operation related to random data is requested.