MEMORY CONTROLLER INCLUDING A WRITE STAGING BUFFER TO MANAGE WRITE REQUESTS IN A MEMORY DEVICE

    公开(公告)号:US20250117139A1

    公开(公告)日:2025-04-10

    申请号:US18984029

    申请日:2024-12-17

    Abstract: A control circuit is configured to interact with a memory device to perform read and write operation at the memory device where the memory device includes memory transistors organized in a set of tiles. The control circuit includes a read queue configured to store active read requests for reading data from the memory device, each active read request being addressed to a respective tile in the set of tiles; a write queue configured to store active write requests for writing data to the memory device, each active write request being addressed to a respective tile in the set of tiles; and a write staging buffer configured to store pending write requests received by the control circuit and to transfer the pending write requests to the write queue to maximize a number of the active write requests in the write queue that are addressed to different tiles of the memory device.

    Quasi-volatile memory with enhanced sense amplifier operation

    公开(公告)号:US11848056B2

    公开(公告)日:2023-12-19

    申请号:US17529083

    申请日:2021-11-17

    CPC classification number: G11C16/26 G11C16/08 G11C16/24

    Abstract: A semiconductor memory device is implemented as a string of storage transistors with sense amplifier connected drain terminals and floating source terminals. In some embodiments, a method in the semiconductor memory device applies a bit line control (BLC) voltage with a voltage step down to the bias device during the read operation to reduce the settling time on the bit line, thereby shortening the access time for data read out from the storage transistors. In other embodiments, a method in the semiconductor memory device including an array of strings of storage transistors uses a current from a biased but unselected bit line as the sense amplifier reference current for reading stored data from a selected bit line. In one embodiment, the sense amplifier reference current is provided to a referenced sense amplifier to generate a sense amplifier data latch signal.

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