Title:
半導体集積回路
Document Type and Number:
Japanese Patent JP4132795
Kind Code:
B2
Abstract:
First and second voltage generators (16, 18) generate a first internal power supply voltage to be supplied to a first internal power supply line and a second internal power supply voltage to be supplied to a second internal power supply line, respectively. A short circuit (20) shorts the first and second internal power supply lines when operations of both the first and second voltage generators are suspended. The first and second internal power supply lines become floating, and charges stored in the respective internal power supply lines drain out gradually. Here, since the charges are redistributed to both of the internal power supply lines, the first and second internal power supply voltages become equal in value as they drop off. Consequently, the first and second internal power supply voltages can be prevented from inversion, and internal circuits connected to both the first and second internal power supply lines can be precluded from malfunctioning.
Inventors:
Toru Koga
Shinya Fujioka
Katsuhiro Mori
Shinya Fujioka
Katsuhiro Mori
Application Number:
JP2001362489A
Publication Date:
August 13, 2008
Filing Date:
November 28, 2001
Export Citation:
Assignee:
富士通株式会社
International Classes:
G11C11/407; G11C11/4074; G05F1/10; G05F1/46; G05F3/02; G05F3/24; G11C5/00; G11C5/14; G11C7/00; H01L21/82; H01L21/822; H01L27/00; H01L27/04; H03K19/0175
Domestic Patent References:
| JP10302492A | ||||
| JP11328960A | ||||
| JP7220472A | ||||
| JP2000113693A | ||||
| JP113586A |
Attorney, Agent or Firm:
Furuya Fumio