Semiconductor memory device having a self-refreshing control circuit
    22.
    发明授权
    Semiconductor memory device having a self-refreshing control circuit 失效
    具有自刷新控制电路的半导体存储器件

    公开(公告)号:US5453959A

    公开(公告)日:1995-09-26

    申请号:US220249

    申请日:1994-03-30

    CPC分类号: G11C11/406

    摘要: A semiconductor memory device capable of a self-refreshing operation with a refresh-initiation signal generated in the memory device has a self-refreshing control circuit. A self-refreshing operation is automatically effected, without externally supplied clock signals, with a specific refreshing cycle having an internally set mode entry time period, a burst refresh time period and an internally set pause time period. These time periods are detected by a single counter circuit arranged to count pulses produced from a basic clock pulse signal generated by an oscillator. The burst refreshing is effected with the pulses contained in a pulse signal generated in synchronization with the basic clock pulse signal from the oscillator.

    摘要翻译: 能够在存储装置中产生的刷新启动信号进行自刷新操作的半导体存储器件具有自刷新控制电路。 在没有外部提供的时钟信号的情况下,自动刷新操作具有具有内部设定模式进入时间段,突发刷新时间周期和内部设置的暂停时间段的特定刷新周期。 这些时间周期通过一个单个计数器电路来检测,该计数器电路被布置成对由振荡器产生的基本时钟脉冲信号产生的脉冲进行计数。 脉冲串刷新通过与来自振荡器的基本时钟脉冲信号同步产生的脉冲信号中包含的脉冲来实现。