Abstract:
A storage device and an operating method of the storage device are provided. The storage device comprises a non-volatile memory including a virtual block including an L2P pair region storing a pair of a logical page number (LPN) and a physical page number (PPN) (LPN-PPN pair) and a data region storing data addressed to the PPN, a volatile memory including an L2V table storing a virtual block number (VBN) corresponding to the LPN, an L2P cache storing the LPN-PPN pair, and an LPN range map storing a portion of the LPN stored in the L2P pair region of the virtual block, and a controller configured to control the non-volatile memory and the volatile memory.
Abstract:
A nonvolatile memory device includes an array of nonvolatile memory cells and a plurality of page buffers configured to receive a plurality of pages of data read from the same page in the array using different read voltage conditions. A control circuit is provided, which is electrically coupled to the plurality of page buffers. The control circuit is configured to perform a test operation by driving the plurality of page buffers with control signals that cause generation within the nonvolatile memory device of a string of XOR data bits, which are derived from a comparison of at least two of the multiple pages of data read from the same page of nonvolatile memory cells using the different read voltage conditions. An input/output device is provided, which is configured to output test data derived from the string of XOR data bits to another device located external to the nonvolatile memory device.
Abstract:
A nonvolatile memory device includes an array of nonvolatile memory cells and a plurality of page buffers configured to receive a plurality of pages of data read from the same page in the array using different read voltage conditions. A control circuit is provided, which is electrically coupled to the plurality of page buffers. The control circuit is configured to perform a test operation by driving the plurality of page buffers with control signals that cause generation within the nonvolatile memory device of a string of XOR data bits, which are derived from a comparison of at least two of the multiple pages of data read from the same page of nonvolatile memory cells using the different read voltage conditions. An input/output device is provided, which is configured to output test data derived from the string of XOR data bits to another device located external to the nonvolatile memory device.