Semiconductor data processing device
    11.
    发明申请
    Semiconductor data processing device 有权
    半导体数据处理装置

    公开(公告)号:US20050128815A1

    公开(公告)日:2005-06-16

    申请号:US11002802

    申请日:2004-12-03

    CPC分类号: G11C16/16 G11C16/30

    摘要: An erasing current is distributed to reduce a load of an internal power circuit and to decrease the number of drivers for erase. A semiconductor data processing device has: a memory array having nonvolatile memory cells arrayed in a matrix and divided into a plurality of erase blocks each instructed to be erased together; and a control circuit, wherein the control circuit controls both of two kinds of erasing voltages applied to the nonvolatile memory cell in the erase block instructed to be erased together to select an erase sector from the erase block for performing erase for each erase sector, thereby performing the erase for each erase sector in time division. Time division erase can distribute an erasing current. Two kinds of erasing voltages are used to select the erase sector. No specific drivers need be provided for each erase sector.

    摘要翻译: 分配擦除电流以减少内部电源电路的负载并减少用于擦除的驱动器的数量。 一种半导体数据处理装置具有:存储阵列,其具有排列成矩阵状的非易失性存储单元,分为多个擦除块,分别被指示一起擦除; 以及控制电路,其中控制电路控制施加到擦除块中的非易失性存储单元的两种擦除电压,这些擦除块被一起擦除,以从擦除块中选择擦除扇区,以便为每个擦除扇区执行擦除,从而 按时间划分每个擦除扇区的擦除。 时分擦除可以分配擦除电流。 使用两种擦除电压来选择擦除扇区。 没有为每个擦除扇区提供特定的驱动程序。