Power control circuit for semiconductor ic
AssigneeSamsung Electronics Co., Ltd.
InventorsChang-Jun CHOI, Suhwan KIM
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Abstract
A power control circuit and related method providing power to an output terminal supplying a logic block within a semiconductor integrated circuit are disclosed. The power control circuit includes a power gating circuit providing a main power voltage to the output terminal during a normal operating mode and providing a retention voltage to the output terminal during a data retention mode characterized by the absence of the main power voltage from the logic block, wherein the retention voltage is minimally sufficient to retain data stored in the logic block during the data retention mode.
Claims17
A power control circuit providing power to an output terminal supplying a logic block within a semiconductor integrated circuit, and comprising:
- a power gating circuit providing a main power voltage to the output terminal during a normal operating mode and providing a retention voltage to the output terminal during a data retention mode characterized by the absence of the main power voltage from the logic block, wherein the retention voltage is minimally sufficient to retain data stored in the logic block during the data retention mode.
A method of operating a power control circuit providing power to an output terminal supplying a logic block within a semiconductor integrated circuit, the method comprising:
- in response to a received command, either providing a main power voltage to the output terminal during a normal operating mode or providing a retention voltage to the output terminal during a data retention mode characterized by the absence of the main power voltage from the logic block, wherein the retention voltage is minimally sufficient to retain data stored in the logic block during the data retention mode.
Dependencies are inferred from the claim text.