| 摘要 |
PURPOSE: A flash memory device, a memory controlling device, a memory controlling method and a storage system are provided to effectively reduce a generation rate of a garbage collection and implement high speed recording. CONSTITUTION: A storage system is composed by a flash memory device(1) and a host device(5). The host device executes a reading and recording of data recorded in the flash memory device by transmitting a read command and a write command about the flash memory device. The flash memory device comprises a flash memory(4), an external interface(2) and a memory controller(3). A user data recording area(4A) and a management information recording area(4B) are existed in the flash memory. The memory controller is composed of a microcomputer including a CPU, ROM, and RAM. [Reference numerals] (1) Flash memory device; (2) External interface; (3) Memory controller; (4) Flash memory; (4A) User data recording area; (4B) Management information recording area; (5) Host device
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