发明授权
- 专利标题： Look-up table circuits and field programmable gate array
- 专利标题（中）： 查找表电路和现场可编程门阵列
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申请号： US13238020申请日： 2011-09-21
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公开(公告)号： US08373437B2公开(公告)日： 2013-02-12
- 发明人: Hideyuki Sugiyama , Tetsufumi Tanamoto , Takao Marukame , Mizue Ishikawa , Tomoaki Inokuchi , Yoshiaki Saito
- 申请人： Hideyuki Sugiyama , Tetsufumi Tanamoto , Takao Marukame , Mizue Ishikawa , Tomoaki Inokuchi , Yoshiaki Saito
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2010-217799 20100928
- 主分类号： G06F7/38
- IPC分类号： G06F7/38 ; H03K19/173
摘要：
A look-up table circuit according to an embodiment includes: a variable resistance circuit including variable resistance devices and selecting a variable resistance device from the variable resistance devices based on an input signal; a reference circuit having a resistance value between the largest resistance value and the smallest resistance value of the variable resistance circuit; a first n-channel MOSFET including a source connected to a terminal of the variable resistance circuit and a gate connected to a drain; a second n-channel MOSFET including a source connected to a terminal of the reference circuit and a gate connected to the gate of the first n-channel MOSFET; a first current supply circuit to supply a current to the variable resistance circuit; a second current supply circuit to supply a current to the reference circuit; and a comparator comparing voltages at a first input terminal and a second input terminal.
公开/授权文献
- US20120074984A1 LOOK-UP TABLE CIRCUITS AND FIELD PROGRAMMABLE GATE ARRAY 公开/授权日：2012-03-29
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