Samsung Electronics Co., Ltd.

Kui-Yon Mun

Hwa Seok Oh

Jae-Yong Jeong

Youngwook Kim

Heewon Lee

Beomkyu Shin

Sung-Kyu Park

Jae-Sung Yu

Young-Seok Hong

Jongkeun Ahn

Jinwoo Kim

Hyun Jin Choi

Chul Ju Lee

Min-Chul Kim

Youngkwang Yoo

Wan-Soo Choi

Young-Wook Kim

Sungwoo Kim

Jaegeun Park

Sam-Yong Bahng

Insoon Jo

Myung-Jin Jung

Beom-Kyu Shin

Sungkyu Park

Sunghyun Noh

Heetak Shin

Chang-Duck Lee

Joon-Whan Bae

Biwoong Chung

Soong-Mann Shin

Junyeong Han

Kyung-eun Choi

Sin-Ho Yang

A memory system which includes a flash memory including a meta block and a data block, and a memory controller including a meta data managing module managing meta data to be stored in the meta block. The meta block includes a plurality of pages. The meta data managing module compares a number of free pages of the plurality of pages with a preset number of free pages, and selects a write target page of the meta data by using one of a consecution meta write operation or a dirty meta write operation, depending on a result of the comparison.

Memory system based on flash memory and method for managing meta data thereof

A storage device, including: a nonvolatile memory device including a plurality of memory cells; and a controller configured to, based on receiving an open zone command from an external host device: based on a number of free erase units from among a plurality of erase units included in the plurality of memory cells being greater than a threshold value, allocate at least two free erase units to a first-type zone, and based on the number of the free erase units being smaller than or equal to the threshold value, allocate the at least two free erase units to a second-type zone. wherein the controller is further configured to permit a random write based on a random logical address received from the external host device for the first-type zone, and to permit a zone write based on a sequential logical address received from the external host device for the second-type zone.

Storage device including nonvolatile memory device and operating method of storage device

A method of controlling a first memory controller that controls a non-volatile memory device includes: the first memory controller receiving first data and a first physical address from a second memory controller via a first interface of the first memory controller; the first memory controller storing the first data in a non-volatile memory buffer of the first memory controller; and the first memory controller programming the first data stored in the non-volatile memory buffer in a first physical region of the non-volatile memory device corresponding to the first physical address.

Method of operating memory controller and memory system, and the memory system

A memory system includes a memory device including memory cells, and a controller that performs a write operation, a read operation, and a check operation on the memory device. During the check operation, the controller controls the memory device to read check data from target memory cells of the memory cells by using a check level, compares the check data with original data stored in the target memory cells, and determines a reliability of the target memory cells or the check data based on a result of the comparison.

Memory system and operating method of memory system

A memory system includes a memory device, a first controller, and a second controller. The first controller is configured to output a control signal for the memory device and data to be stored in the memory device based on a signal received from a host. The second controller includes a non-volatile memory configured to store the data. The second controller is configured to receive the control signal and the data from the first controller, and control the memory device based on the control signal.

Memory system including a plurality of controllers

A system includes: a nonvolatile memory; a memory controller configured to control the nonvolatile memory, the memory controller including a first buffer memory for temporarily storing write data to be written to the nonvolatile memory; and a second buffer memory having a lower operational speed and a higher memory capacity than the first buffer memory. The memory controller is configured to transmit the write data from the first buffer memory to the second buffer memory and to the nonvolatile memory, and to release an operational state of the first buffer memory after transmitting the write data from the first buffer memory to the second buffer memory and to the nonvolatile memory. Writing additional write data to the first buffer memory is prohibited prior to the release of the operational state of the first buffer memory, and is permitted after the release of the operational state of the first buffer memory.

Memory system, memory controller for memory system, operation method of memory controller, and operation method of user device including memory device

A method of controlling memory devices of a memory controller, the memory devices including a plurality of memory dies, includes receiving at least one data operation request and a power budget from external of the memory controller; determining respective data operation times of the plurality of memory dies, wherein a power consumption due to at least one data operation in response to the at least one data operation request may be equal to or less than the power budget; and controlling the plurality of memory dies based on the data operation times.

Memory controller and storage device including the same

In one embodiment, the method includes sensing, by a memory device, a temperature of the memory device; and generating, by the memory device, a response to a single received command. The response includes temperature information, and the temperature information provides information on the sensed temperature. In one embodiment, the single received command is a read status request command, the read status request command requests status information on the memory device, and the status information includes the temperature information.

Memory device, memory system, and method of controlling memory device

A storage device includes a memory device configured to store data and a memory controller connected to the memory device through a data strobe line and a plurality of data lines. The storage device adds a predetermined specific pattern in front of data and processes data input following the specific pattern as valid data during a read or write operation. The specific pattern is provided in alignment with a data strobe signal (DQS) latency cycle. The memory controller detects a specific pattern input from the memory device during a read operation and processes data input following the specific pattern as valid data when the detected specific pattern matches an internally stored specific pattern.

Storage device communicating with specific pattern and operating method thereof

A method for operating a memory controller is provided. The method includes generating a pseudo random number by using a seed included in a stored seed group corresponding to a page to be currently programmed, wherein the stored seed group is stored among a plurality of seed groups. Data to be programmed into the current page is randomizing by using the pseudo random number and the memory controller outputs the randomized data. A solid state drive (SSD) or other memory storage device such as a memory card includes the memory controller and includes a read only memory (ROM) storing the plurality of seed groups. The memory controller includes a micro-processor and a read only memory (ROM) storing executable code for causing the micro-processor to access the plurality of stored seed groups and to select a seed therefrom corresponding to a page to be currently programmed.

Memory controller, method thereof, and electronic devices having the memory controller

A storage system is provided which includes: a storage device including a first memory, which may be nonvolatile memory, and a second memory, which may be a device memory, and configured to request a test on at least one of the first and second memories; and a host configured to test the at least one memory in response to the request for the memory test from the storage device and store the test result in the first memory or a third memory.

Storage system managing run-time bad cells

A storage device includes a nonvolatile memory and a memory controller. The nonvolatile memory performs read, write, and erase operations. The memory controller operates in an operating mode where the memory controller exchanges a voltage signal, set to a reference voltage level within an allowable range, with the nonvolatile memory or receives the voltage signal from an external device. When operating in the operating mode, the memory controller optimizes an operating frequency of the nonvolatile memory depending on a voltage level of the voltage signal and a temperature.

Storage device and controlling method thereof

Random sequence data is sequentially generated based on a seed assigned to a selected memory space, and one of access-requested segments of the selected memory space is logically combined with the sequentially generated random sequence data to transfer the access-requested segment. The sequentially generating and the logically combining are iteratively performed until remaining access-requested segments all transferred.

Growing community of inventors

Hwaseong-si, South Korea

Kui-Yon Mun