Claims
- 1. A semiconductor device comprising:a plurality of memory cells; an X-system circuit for accessing said plurality of memory cells, said X-system circuit including a plurality of MOSFETs; a Y-system circuit for accessing said plurality of memory cells; a first circuit provided in order to reduce a subthreshold leakage current of said plurality of MOSFETs of said X-system circuit; and a second circuit provided in order to reduce a subthreshold leakage current of said plurality of MOSFETs of said Y-system circuit, wherein said first circuit and said second circuit are activated at different timings from each other.
- 2. A semiconductor integrated circuit according to claim 1,wherein said X-system circuit includes a first decoder, and wherein said Y-system circuit includes a second decoder.
- 3. A semiconductor device comprising:a plurality of memory cells; an X decoder for said plurality of memory cells, said X decoder including a plurality of MOSFETs; a Y decoder for said plurality of memory cells, said Y decoder including a plurality of MOSFETs; a first circuit provided in order to reduce a subthreshold leakage current of said plurality of MOSFETs of said X decoder; and a second circuit provided in order to reduce a subthreshold leakage current of said plurality of MOSFETs of said Y decoder, wherein said first circuit and said second circuit are activated at different timings from each other.
- 4. A semiconductor device according to claim 3,wherein said second circuit activates after said first circuit activates.
Priority Claims (1)
Number |
Date |
Country |
Kind |
7-349718 |
Dec 1995 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 09/729,273, filed on Dec. 5, 2000; which is a continuation of application Ser. No. 09/302,437 is now U.S. Pat. No. 6,240,035 filed on Apr. 30, 1999; which is a continuation of application Ser. No. 08/985,425, filed on Oct. 5, 1997 (now U.S. Pat. No. 5,926,430), which is a continuation of application Ser. No. 08/762,883, filed on Dec. 12, 1996 is now U.S. Pat. No. 5,724,297, the entire disclosures of which are hereby incorporated by reference.
US Referenced Citations (12)
Foreign Referenced Citations (7)
Number |
Date |
Country |
5-268065 |
Oct 1993 |
JP |
5-347550 |
Dec 1993 |
JP |
6-29834 |
Feb 1994 |
JP |
6-237164 |
Aug 1994 |
JP |
6-311012 |
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Continuations (4)
|
Number |
Date |
Country |
Parent |
09/729273 |
Dec 2000 |
US |
Child |
09/875169 |
|
US |
Parent |
09/302437 |
Apr 1999 |
US |
Child |
09/729273 |
|
US |
Parent |
08/985425 |
Oct 1997 |
US |
Child |
09/302437 |
|
US |
Parent |
08/762883 |
Dec 1996 |
US |
Child |
08/985425 |
|
US |