Semiconductor device with a power down mode

Details Semiconductor device with a power down mode Semiconductor device with a power down mode

2005-07-05

2008-08-26

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C365S222000, C365S226000, C365S227000

Reexamination Certificate

active

07418612

ABSTRACT:
The semiconductor device with the power down mode includes a power down detecting block for generating a power down mode signal by detecting if the power down mode is activated, a power source control block for producing a power control signal whose ratio of an enable period to a disable period is determined by the power down mode signal, a current saving block whose driving current requirement is reduced in the power down mode, a power switching block for controlling the power supply to the current saving block in response to the power control signal, and a current non-saving block whose driving current requirement in the power down mode is identical to that in a normal operation mode. The semiconductor device can prevent the current consumption due to off-leakage components and static current components generated at internal analog circuits in the power down mode.

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