发明名称 INPUT BUFFER CIRCUIT AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
摘要 PROBLEM TO BE SOLVED: To provide an input buffer circuit and a semiconductor integrated circuit device, capable of measuring a reference voltage at the time of testing without increasing the number of outer terminals for test. SOLUTION: A reference voltage for discriminating level of a signal inputted from the outside is supplied to an input buffer circuit. The circuit is provided with a switch for connecting or disconnecting between a first input terminal to which the signal is inputted and a second input terminal to which the reference voltage is supplied. COPYRIGHT: (C)2004,JPO
申请公布号 JP2003332902(A) 申请公布日期 2003.11.21
申请号 JP20020140243 申请日期 2002.05.15
申请人 NEC CORP 发明人 OGURI TAKASHI
分类号 H03K19/0175;H03F3/45;H03K19/0185;H03K19/173;(IPC1-7):H03K19/017 主分类号 H03K19/0175
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