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    • 3. 发明授权
    • Write control circuitry and method for a memory array configured with multiple memory subarrays
    • 用于配置有多个存储器子阵列的存储器阵列的写控制电路和方法
    • US07471590B2
    • 2008-12-30
    • US11762833
    • 2007-06-14
    • John D. DavisPaul A. BunceDonald W. PlassKenneth J Reyer
    • John D. DavisPaul A. BunceDonald W. PlassKenneth J Reyer
    • G11C8/00
    • G11C11/413G11C7/18
    • Write control circuitry and control method are provided for a memory array configured with multiple memory subarrays. The write control circuitry includes multiple subarray write controllers associated with the multiple memory subarrays, each subarray write controller selectively enabling a local write control signal to its associated memory subarray. The selectively enabling is responsive to a received subarray select signal, wherein only one subarray select signal is active at a time. At least some subarray write controllers are powered at least in part via a switched power node, wherein powering of the switched power node is distributively implemented among the subarray write controllers. In one example, the distributively implemented powering of the switched power node is accomplished via multiple inverters distributed among the subarray write controllers, each inverter having an output coupled to the switched power node, and an input coupled to receive a global write enable signal.
    • 为配置有多个存储器子阵列的存储器阵列提供写控制电路和控制方法。 写控制电路包括与多个存储器子阵列相关联的多个子阵列写控制器,每个子阵列写控制器选择性地使本地写控制信号到其相关的存储器子阵列。 选择性地使能响应于接收的子阵列选择信号,其中一次只有一个子阵列选择信号是有效的。 至少一些子阵列写控制器至少部分地通过交换式电源节点供电,其中,在子阵列写入控制器之间分配地实现切换的功率节点的供电。 在一个示例中,通过分布在子阵列写控制器之间的多个反相器实现开关电源节点的分布式实现的供电,每个反相器具有耦合到开关电源节点的输出,以及耦合以接收全局写使能信号的输入。