发明授权
- 专利标题: Semiconductor memory device
- 专利标题(中): 半导体存储器件
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申请号: US12923981申请日: 2010-10-19
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公开(公告)号: US08254193B2公开(公告)日: 2012-08-28
- 发明人: Waichiro Fujieda
- 申请人: Waichiro Fujieda
- 申请人地址: JP Tokyo
- 专利权人: Lapis Semiconductor Co., Ltd.
- 当前专利权人: Lapis Semiconductor Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Rabin & Berdo, P.C.
- 优先权: JP2009-242615 20091021
- 主分类号: G11C7/00
- IPC分类号: G11C7/00
摘要:
There is provided a semiconductor memory device including: plural memory cells; a selection signal outputting section; a first precharging section that precharges a potential of a data line that outputs, to an exterior, a signal of a level corresponding to data stored in the memory cell; and a bit line selecting section that has, per bit line, a bit line selecting section that comprises (1) a second precharging section, (2) a potential lowering section, and (3) a third precharging section connected to the bit line selection line and the bit line between the second precharging section and a connection point at which the potential lowering section is connected to the bit line, and when the non-selection signal is inputted, the third precharging section precharges the bit line between the second precharging section and the connection point at which the potential lowering section is connected to the bit line.
公开/授权文献
- US20110090752A1 Semiconductor memory device 公开/授权日:2011-04-21
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