发明授权
US4989185A Semiconductor device with change-over circuit to access a memory area
based upon internal or external signal
失效
具有转换电路的半导体器件，用于基于内部或外部信号访问存储器区域
- 专利标题： Semiconductor device with change-over circuit to access a memory area based upon internal or external signal
- 专利标题（中）： 具有转换电路的半导体器件，用于基于内部或外部信号访问存储器区域
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申请号： US219736申请日： 1988-07-15
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公开(公告)号： US4989185A公开(公告)日： 1991-01-29
- 发明人: Akinori Matsuo , Masashi Watanabe , Michio Fujimoto , Masashi Wada , Yoshiharu Nagayama , Kazuo Naito
- 申请人： Akinori Matsuo , Masashi Watanabe , Michio Fujimoto , Masashi Wada , Yoshiharu Nagayama , Kazuo Naito
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Hitachi, Ltd.,Hitachi VLSI Engineering Corp.
- 当前专利权人： Hitachi, Ltd.,Hitachi VLSI Engineering Corp.
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 优先权： JPX62-174703 19870715; JPX62-208145 19870824
- 主分类号： G11C8/00
- IPC分类号： G11C8/00 ; G11C8/10
摘要：
A memory area within a semiconductor integrated circuit device is accessible through an address changeover circuit. External control signals instruct the memory device as to the addressing mode desired. Address signals originating externally are provided directly to the IC's address decoder circuits, while addresses originating internal to the IC are first shifted one or two bits to modify the address by a power of 2, then provided to the address decoder circuits. In this way, data of bit length N may be written to a memory array of bit length M, where M>N.
公开/授权文献
- US4342956A Proportional base drive circuit 公开/授权日：1982-08-03
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