Invention Grant
- Patent Title: Semiconductor memory device and methods for operating a semiconductor memory device
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Application No.: US16209115Application Date: 2018-12-04
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Publication No.: US10665304B2Publication Date: 2020-05-26
- Inventor: Makoto Senoo , Hiroki Murakami , Kazuki Yamauchi
- Applicant: Winbond Electronics Corp.
- Applicant Address: TW Taichung
- Assignee: WINBOND ELECTRONICS CORP.
- Current Assignee: WINBOND ELECTRONICS CORP.
- Current Assignee Address: TW Taichung
- Agency: Muncy, Geissler, Olds & Lowe, PC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@29c5901a
- Main IPC: G11C7/10
- IPC: G11C7/10 ; G11C16/32 ; G11C16/04 ; G11C16/30 ; G11C16/08 ; G11C16/10 ; G11C7/22 ; G11C16/26 ; G11C7/20
Abstract:
A semiconductor memory device which is able to perform a power sequence with high reliability is provided. When a power from an external device is supplied, the controller of the flash memory of the invention is configured to read codes stored in a read-only memory in synchronization with a clock signal to perform a power-on sequence. In addition, the controller is further configured to deactivate the clock signal so as to pause the power-on sequence when it has been detected during the power-on sequence that the voltage of the power is not greater than a threshold, and to activate the clock signal to resume the power-on sequence when it is detected that the voltage of the supplied power exceeds the threshold again.
Public/Granted literature
- US20190237148A1 SEMICONDUCTOR MEMORY DEVICE AND METHODS FOR OPERATING A SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2019-08-01
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