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公开(公告)号:US11769561B2
公开(公告)日:2023-09-26
申请号:US17119509
申请日:2020-12-11
IPC分类号: G11C17/00 , G11C17/08 , G11C17/16 , G11C17/18 , G11C16/08 , G11C16/22 , G11C11/22 , G11C13/00 , G11C11/16
CPC分类号: G11C17/08 , G11C11/1653 , G11C11/1695 , G11C11/2253 , G11C11/2295 , G11C13/0004 , G11C13/0023 , G11C13/0059 , G11C16/08 , G11C16/22 , G11C17/165 , G11C17/18
摘要: Memory devices, systems including memory devices, and methods of operating memory devices and systems are provided, in which at least a subset of a non-volatile memory array is configured to behave as read-only memory by not implementing erase or write commands. In one embodiment of the present technology, a memory device is provided, comprising a non-volatile memory array, and circuitry configured to store one or more addresses of the non-volatile memory array, to compare an address of a received command to the one or more addresses, and at least in part based on the comparison, determine not to implement the received command. The circuitry can be further configured to return an error message after determining not to implement the received command.
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公开(公告)号:US11087829B2
公开(公告)日:2021-08-10
申请号:US16926476
申请日:2020-07-10
IPC分类号: G11C11/4094 , G11C11/408 , G11C11/4096 , G11C11/406
摘要: Methods, systems, and devices for phase charge sharing are described. In some memory systems or memory devices, one or more decoders may be used to bias access lines of a memory die. The decoders may transfer voltage or current between a first conductive line of the decoder and a second conductive line of the decoder via a shorting device. Transferring the voltage or current may be performed as part of or in association with an operation (e.g., an activate or pre-charge operation) to access one or more memory cells of the memory die. In some examples, the decoders may transfer voltage or current between a first conductive line of a decoder associated with a first refresh activity and a second conductive line of the decoder associated with a second refresh activity via a shorting device.
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3.
公开(公告)号:US11062740B2
公开(公告)日:2021-07-13
申请号:US16834293
申请日:2020-03-30
摘要: A memory device is provided. The memory device comprises a memory array and circuitry configured to determine one or more settings for the memory array corresponding to a powered-on state of the memory device, to store the one or more settings in a non-volatile memory location, and in response to returning to the powered-on state from a reduced-power state, to read the one or more settings from the non-volatile memory location.
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公开(公告)号:US10832768B2
公开(公告)日:2020-11-10
申请号:US16459462
申请日:2019-07-01
发明人: John F. Schreck , George B. Raad
摘要: Methods, systems, and devices for storing and reading data at a memory device are described. A memory device may utilize one or more storage states to store data within a data word. The memory device may exhibit higher data leakage or more power consumption when storing or reading a first storage state compared to storing or reading one or more other storage states. In some cases, the memory device may generate a second data word corresponding to a first data word by modifying each symbol type of the first data word to generate a different symbol type for the second data word. A memory device may reduce the occurrence of a storage state associated with large data leakage, or high-power consumption, or both. Further, the memory device may generate and store an indicator indicating the transformation of a corresponding data word.
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公开(公告)号:US20200227113A1
公开(公告)日:2020-07-16
申请号:US16247277
申请日:2019-01-14
IPC分类号: G11C11/406 , G11C11/403 , G11C11/408
摘要: A memory device may include a phase driver circuit that may output a first voltage for refreshing a plurality of memory cells. The memory device may also include a plurality of word line driver circuits that may receive the first voltage via the phase driver circuit, such that each word line driver circuit of the plurality of word line driver circuits may provide the first voltage to a respective word line associated with a respective portion of the plurality of memory cells. In addition, each word line driver circuit may refresh the respective portion of the plurality of memory cells based on a respective word line enable signal provided to a first switch of the respective word line driver circuit.
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公开(公告)号:US20200211639A1
公开(公告)日:2020-07-02
申请号:US16232347
申请日:2018-12-26
发明人: George B. Raad , John F. Schreck
IPC分类号: G11C11/56
摘要: Techniques are provided for sensing a signal associated with a memory cell capable of storing three or more logic states. To sense a state of the memory cell, a charge may be transferred between a digit line and a node coupled with a plurality of sense components using a charge transfer device. Once the charge is transferred, one or more of the plurality of sense components may sense the charge with one of a variety of sensing schemes. Based on the charge being transferred using the charge transfer device and each sense component sensing the charge, a logic state associated with the memory cell may be determined. The number of sensed states may be correlated to the number of sense amplifiers. The ratio of the number of states read by the first sense component and the second sense component to the number of sense components may be greater than one.
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公开(公告)号:US20200211604A1
公开(公告)日:2020-07-02
申请号:US16232916
申请日:2018-12-26
发明人: George B. Raad , John F. Schreck
摘要: Devices and methods for a sensing scheme are described. A device may include a memory array and a column select line configured to couple with a single page of a set of pages within the memory array when the single page is selected during an access operation. The column select line may be isolated from other pages (e.g., unselected pages) of the set. The device may include a set of sense component groups coupled with the single page. Each sense component group of the set may be configured to access one or more memory cells of the single page using the column select line. The device may include a decoding component configured to couple a sense component group of the set with an I/O line of an I/O channel. The device may communicate information with the I/O line during the access operation.
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8.
公开(公告)号:US10692562B2
公开(公告)日:2020-06-23
申请号:US16734241
申请日:2020-01-03
摘要: Memory devices, systems including memory devices, and methods of operating memory devices in which multiple counters are provided to permit memory refresh commands greater freedom in targeting subsets of the memory device for data refresh operations. In one embodiment, a memory device is provided, comprising a plurality of memory banks, and circuitry configured to (i) store a plurality of values, each of the plurality of values corresponding to one of the plurality of memory banks; (ii) refresh first data stored in a first one of the plurality of memory banks; and (iii) update a first one of the plurality of values corresponding to the first one of the plurality of memory banks based at least in part on refreshing the first data.
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9.
公开(公告)号:US20190371392A1
公开(公告)日:2019-12-05
申请号:US16543477
申请日:2019-08-16
IPC分类号: G11C11/406
摘要: Memory devices, systems including memory devices, and methods of operating memory devices in which multiple counters are provided to permit memory refresh commands greater freedom in targeting subsets of the memory device for data refresh operations. In one embodiment, a memory device is provided, comprising a plurality of memory banks, and circuitry configured to (i) store a plurality of values, each of the plurality of values corresponding to one of the plurality of memory banks; (ii) refresh first data stored in a first one of the plurality of memory banks; and (iii) update a first one of the plurality of values corresponding to the first one of the plurality of memory banks based at least in part on refreshing the first data.
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10.
公开(公告)号:US11742028B2
公开(公告)日:2023-08-29
申请号:US18053201
申请日:2022-11-07
IPC分类号: G11C16/14 , G11C16/30 , G11C17/16 , G11C17/18 , G11C16/22 , G11C13/00 , G11C11/16 , G11C11/22 , G11C16/08
CPC分类号: G11C16/14 , G11C11/165 , G11C11/1653 , G11C11/1675 , G11C11/1697 , G11C11/225 , G11C11/2253 , G11C11/2275 , G11C11/2297 , G11C13/0004 , G11C13/0023 , G11C13/0038 , G11C13/0059 , G11C13/0097 , G11C16/08 , G11C16/22 , G11C16/30 , G11C17/165 , G11C17/18
摘要: Memory devices, systems including memory devices, and methods of operating memory devices and systems are provided, in which at least a subset of a non-volatile memory array is configured to behave as a volatile memory by erasing or degrading data in the event of a changed power condition such as a power-loss event, a power-off event, or a power-on event. In one embodiment of the present technology, a memory device is provided, comprising a non-volatile memory array, and circuitry configured to store one or more addresses of the non-volatile memory array, to detect a changed power condition of the memory device, and to erase or degrade data at the one or more addresses in response to detecting the changed power condition.
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