公开(公告)号：US09628061B2

公开(公告)日：2017-04-18

申请号：US14860761

申请日：2015-09-22

Applicant: Macronix International Co., Ltd.

Inventor： Kuan-Ming Lu ,  Chun-Hsiung Hung ,  Chun-Yi Lee ,  Ken-Hui Chen ,  Kuen-Long Chang

IPC: H03K5/153 ,  H03K5/1534

CPC classification number: H03K5/1534

Abstract: A power drop detector circuit includes a detect element, for coupling to a first source voltage, for detecting a voltage level of the first source voltage, and a memory element coupled to the detect element and switchable between a first memory state and a second memory state based on the voltage level of the first source voltage.