Abstract: A data storage device includes a memory device and a memory controller. The memory device includes multiple memory blocks which include one or more spare memory blocks not written with data and one or more predetermined memory blocks that are configured as a buffer for receiving data from a host device. The memory controller obtains a total number of remaining erasable count of the memory blocks and determines a setting value of a number of said one or more predetermined memory blocks according to a number of currently remaining spare memory block(s), a number of the predetermined memory block(s) that has/have been written with data among said one or more predetermined memory blocks, a predetermined threshold and the total number of remaining erasable count of the memory blocks, and configures the number of the predetermined memory block(s) as the buffer according to the setting value.

Abstract: A data storage device includes a memory device and a memory controller. The memory device includes multiple predetermined memory blocks that are configured as a buffer for receiving data from a host device. The memory controller performs a write operation in response to a write command, and during the write operation, the memory controller maintains a first quantity count value for counting a number of the predetermined memory block(s) that has/have been written with data, determine a number of the predetermined memory block(s) which is/are released in response to the write operation and maintains a second quantity count value based on this number. After the write operation, the memory controller performs a garbage collection and updates the first quantity count value based on the second quantity count value when determining that the host device has requested to perform a flush operation on the predetermined memory blocks.

Abstract: A data storage device includes a memory device and a memory controller. The memory device includes multiple predetermined memory blocks that are configured as a buffer for receiving data from a host device. The memory controller performs a write operation in response to a write command issued by the host device, and during the write operation, the memory controller maintains a first quantity count value for counting a number of the predetermined memory block(s) that has/have been written with data, determines a number of the predetermined memory block(s) which is/are released in response to the write operation and maintains a second quantity count value based on this number. After the write operation, the memory controller updates the first quantity count value based on the second quantity count value when determining that the host device has requested to perform a flush operation on the predetermined memory blocks.

Abstract: A data storage device includes a memory device and a memory controller. The memory device includes multiple memory blocks. The memory blocks includes one or more spare memory blocks that are not written with data and one or more predetermined memory blocks that are configured as a buffer for receiving data from a host device. The memory controller is coupled to the memory device and configured to access the memory device. The memory controller is configured to determine a setting value of a number of said one or more predetermined memory blocks according to a number of currently remaining spare memory block(s), a number of the predetermined memory block(s) that has/have been written with data among said one or more predetermined memory blocks and a predetermined threshold, and configure the number of the predetermined memory block(s) as the buffer according to the setting value.

Abstract: A magnetoresistive random access memory (MRAM) device includes a first array region and a second array region on a substrate, a first magnetic tunneling junction (MTJ) on the first array region, a first top electrode on the first MTJ, a second MTJ on the second array region, and a second top electrode on the second MTJ. Preferably, the first top electrode and the second top electrode include different nitrogen to titanium (N/Ti) ratios.

Abstract: A data transmission system is disclosed. The data transmission system includes at least one signal processing device, at least one conversion device, at least one antenna device, and at least one flexible printed circuit board. The at least one signal processing device is configured to generate or receive at least one data. The at least one conversion device is configured to transform between the at least one data and an optical signal. The at least one antenna device is configured to obtain the at least one data according to the optical signal, and configured to receive or transmit the at least one data wirelessly. The at least one flexible printed circuit board includes at least one conductive layer and at least one optical waveguide layer. The at least one optical waveguide layer is configured to transmit the optical signal.

Abstract: A switch control module including a master switch, a clamping element and a diode is provided. The master switch is configured to receive a control signal having a conducting interval and a non-conducting interval. The diode couples the clamping element and the master switch.