Electronic digital logic circuitry – Signal sensitivity or transmission integrity – Signal level or switching threshold stabilization
Reexamination Certificate
2005-10-18
2005-10-18
Tran, Anh Q. (Department: 2819)
Electronic digital logic circuitry
Signal sensitivity or transmission integrity
Signal level or switching threshold stabilization
C326S017000, C326S112000, C326S119000
Reexamination Certificate
active
06956398
ABSTRACT:
The method for powering down a circuit for a data retention mode includes: changing a supply voltage node from an active power voltage level to an inactive power level; coupling a source of a P channel device to the supply voltage node; providing a retaining power supply voltage level to a back gate of the P channel device; changing a drain voltage of the P channel device to a reference voltage level, wherein the reference voltage level is different from the retaining power supply voltage level; and changing a gate voltage of the P channel device to the reference voltage level.
REFERENCES:
patent: 6864708 (2005-03-01), Takahashi et al.
patent: 2001/0013806 (2001-08-01), Notani
Dang Luan A.
Deng Xiaowei
Jamison George B.
Mair Hugh
Scott David B.
Brady III W. James
Stewart Alan K.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
Tran Anh Q.
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