发明申请
- 专利标题： DATA OUTPUT BUFFER AND MEMORY DEVICE
- 专利标题（中）： 数据输出缓冲器和存储器件
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申请号： US13239478申请日： 2011-09-22
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公开(公告)号： US20120099383A1公开(公告)日： 2012-04-26
- 发明人: Si-Hong Kim , Seung-Jun Bae , Jin-Il Lee , Kwang-Il Park
- 申请人： Si-Hong Kim , Seung-Jun Bae , Jin-Il Lee , Kwang-Il Park
- 申请人地址： KR Suwon-si
- 专利权人： SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人： SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址： KR Suwon-si
- 优先权： KR10-2010-0102178 20101020
- 主分类号： G11C7/00
- IPC分类号： G11C7/00 ; G11C7/10
摘要：
A data output buffer includes a driving unit and a control unit. The driving unit selectively performs a termination operation that provides a termination impedance to a transmission line coupled to an external pin, and a driving operation that provides a drive impedance to the transmission line while outputting read data. The control unit adjusts a value of the termination impedance and a value of the drive impedance based on an output voltage at the external pin during a termination mode, and controls the driving unit to selectively perform one of the termination operation and the driving operation during a driving mode.
公开/授权文献
- US08553471B2 Data output buffer and memory device 公开/授权日：2013-10-08