DRAM core refresh with reduced spike current
    6.
    发明授权
    DRAM core refresh with reduced spike current 失效
    DRAM内核刷新,峰值电流降低

    公开(公告)号:US06343042B1

    公开(公告)日:2002-01-29

    申请号:US09561592

    申请日:2000-04-27

    IPC分类号: G11C700

    摘要: A method for reducing the communication overhead over the interface bus to the memory devices for refresh operations. This is done by refreshing multiple banks in response to a single command. Multibank refresh is made possible by varying the current profile for the row sense and row precharge currents during a refresh operation, as compared to normal memory access. Unlike normal memory accesses, data is not needed, and a fast access time is not required. This allows the current to be spread using different circuitry for driving the current to lessen current spikes. The spread current is still maintained within the timing of a normal memory access.

    摘要翻译: 一种用于将通过接口总线的通信开销减少到用于刷新操作的存储器设备的方法。 这是通过刷新多个银行来响应单个命令来完成的。 与正常的存储器访问相比,通过改变在刷新操作期间的行感测和行预充电电流的电流分布,可实现多单元刷新。 与普通内存访问不同,不需要数据,不需要快速访问时间。 这允许使用不同的电路来传播电流来驱动电流以减少电流尖峰。 扩展电流仍然保持在正常内存访问的时间内。