| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of preventing flowing-in of a signal between different electronic circuits with the use of a simple circuit configuration. SOLUTION: The electronic apparatus includes: at least a pair of first circuit units 100 to be operated in an on-state at all times as a plurality of pairs of circuit units each of which incorporates pull-up resistors 141-242 to be connected to signal lines 410-430; at least a pair of second circuit units 200 to be turned off in a power saving mode; and a power source unit 300 having a power source 310 and a power source control circuit 320 and outputting power in at least two systems, i.e., an output system in an on state at all times and an output system to be turned off in the power saving mode. When the second circuit units 200 are in the power saving mode, the first circuit units 100 cut off the connection of the signal lines 410-430 leading to the pull-up resistors 141-242 with the use of a switch circuit 170. COPYRIGHT: (C)2008,JPO&INPIT
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