Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Eunkyoung Kwon0
Bongjae Kwon0
Chanhee Jeon0
Date of Patent
June 2, 2009
0Patent Application Number
118920910
Date Filed
August 20, 2007
0Patent Primary Examiner
Patent abstract
A buffer circuit includes pull up and pull down circuits configured to selectively pull up and pull down, respectively, a voltage of an input/output pad. The pull up and pull down circuits are connected to separate power supply lines such that a current path from the input/output pad to the pull down circuit through the pull up circuit does not exist when electrostatic discharge is received at the input/output pad.
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