SEMICONDUCTOR INTEGRATED CIRCUIT, TESTING METHOD OF SEMICONDUCTOR INTEGRATED CIRCUIT, AND SEMICONDUCTOR INTEGRATED CIRCUIT PACKAGE

PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit in which generation of leakage current is prevented while making available a pad of an IO block selected from at least two selection IO blocks, and to provide a testing method of the semiconductor integrated circuit, and semiconduct...

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Bibliographische Detailangaben
Hauptverfasser: HASUMI YUICHI, UCHIDA NOBUO, TAGUCHI OSAMU
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit in which generation of leakage current is prevented while making available a pad of an IO block selected from at least two selection IO blocks, and to provide a testing method of the semiconductor integrated circuit, and semiconductor integrated circuit package in which the semiconductor integrated circuit is mounted. SOLUTION: A signal input to a pad 101 connected to a first dedicated IO buffer 110 which is brought into an input mode, is output from a tertiary input buffer included in the first dedicated IO buffer to a common signal line 13, this signal is supplied through a tertiary output buffer included in a second dedicated IO buffer 210 brought into an output mode, to a tertiary input buffer included in the second dedicated IO buffer 210, and its input voltage is determined. COPYRIGHT: (C)2010,JPO&INPIT