发明申请
- 专利标题： Semiconductor memory device having a plurality of chips and capability of outputting a busy signal
- 专利标题（中）： 具有多个芯片的半导体存储器件和输出忙信号的能力
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申请号： US10949274申请日： 2004-09-24
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公开(公告)号： US20050036356A1公开(公告)日： 2005-02-17
- 发明人: Hiroshi Nakamura , Kenichi Imamiya , Ken Takeuchi
- 申请人： Hiroshi Nakamura , Kenichi Imamiya , Ken Takeuchi
- 专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人： KABUSHIKI KAISHA TOSHIBA
- 优先权： JP2001-198132 20010629; JP2001-377408 20011211; JP2002-159518 20020531
- 主分类号： G11C7/10
- IPC分类号： G11C7/10 ; G11C7/20 ; G11C16/20 ; G11C11/21
摘要：
One package contains a plurality of memory chips. Each memory chip has an I/O terminal which generates a busy signal. The busy signal enables a busy state when a power supply voltage value reaches a specified and guaranteed range after a power-on sequence. The busy signal maintains the busy state until completion of initialization operations for the plurality of memory chips. The busy signal releases the busy state after completion of all initialization operations for the plurality of memory chips.
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