公开(公告)号：US20180174643A1

公开(公告)日：2018-06-21

申请号：US15471937

申请日：2017-03-28

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Chiting CHENG ,  Yangsyu Lin

IPC: G11C11/417 ,  H01L27/11 ,  H01L23/528

CPC classification number: G11C11/417 ,  G11C5/147 ,  H01L23/5286 ,  H01L27/1104 ,  H01L27/1116 ,  Y10T307/675 ,  Y10T307/735

Abstract: A dual rail device includes a first power domain circuit coupled to a first power supply through a first header control switch and a second power domain circuit coupled to a second power supply. The first and second power supplies have different steady-state voltage levels. The first power domain circuit is interfaced to the second power domain circuit. The device also includes a power detector circuit for providing a control signal for the first header control switch responsive to a voltage level of the second power supply.

公开(公告)号：US09659603B2

公开(公告)日：2017-05-23

申请号：US14980287

申请日：2015-12-28

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Hektor Huang ,  Yangsyu Lin ,  Yu-Hao Hsu ,  Chia-En Huang ,  Chiting Cheng ,  Chen-Lin Yang ,  Jung-Ping Yang ,  Cheng Hung Lee

IPC: G11C5/14 ,  H02J4/00

CPC classification number: G11C5/147 ,  H02J4/00

Abstract: A power management circuit for an electronic device sequentially activates and/or deactivates electronic circuits of the electronic device. The power management circuit provides a first group of one or more circuit power management signals to activate and/or deactivate a first electronic circuit from among the electronic circuits. Thereafter, the power management circuit provides a corresponding power management signal from among a second group of the one or more circuit power management signals that corresponds to a portion of the first electronic circuit that has been activated and/or deactivated by the first group of the one or more circuit power management signals to activate and/or deactivate a portion of a second electronic circuit from among the electronic circuits. The power management circuit continues to sequentially provide each of the one or more circuit power management signals in a similar manner until the electronic circuits of the electronic device have been activated and/or deactivated.