发明授权
- 专利标题： Synchronous semiconductor memory device operating in synchronization with external clock signal
- 专利标题（中）： 同步半导体存储器件与外部时钟信号同步工作
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申请号： US652048申请日： 1996-05-23
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公开(公告)号： US5691955A公开(公告)日： 1997-11-25
- 发明人: Tadaaki Yamauchi
- 申请人： Tadaaki Yamauchi
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-227996 19950905
- 主分类号： G11C11/413
- IPC分类号： G11C11/413 ; G11C7/10 ; G11C11/401 ; G11C11/407 ; G11C11/408 ; G11C11/41 ; G11C7/00
摘要：
A synchronous semiconductor memory device according to the present invention is provided with two column address counters corresponding to two banks. The two column address counters receives two reference internal column address signals output from the two column address buffers. Each of the column address counters outputs internal column address signals successively and alternately according to the reference internal column address signals. As a result, when the access is to be performed alternately to the two banks, it would not be necessary to input an external column address signal each time the bank to be accessed changes, so that it is made possible to simplify the address input.
公开/授权文献
- US5212054A Silver halide color photographic light-sensitive material 公开/授权日：1993-05-18
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