公开(公告)号：US20230134667A1

公开(公告)日：2023-05-04

申请号：US17979552

申请日：2022-11-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changmi SHIN ,  Jeyoon KIM ,  Seungjin YANG

IPC: G11C29/12 ,  G11C7/04

Abstract: An electronic device includes a power management circuit; a volatile memory; and a processor configured to: based on the electronic device starting system booting, identify whether the system booting is initial booting or whether a condition designated in the volatile memory is satisfied, based on identifying that the system booting is the initial booting or the condition is satisfied, identify a lower positive supply voltage (LVDD) value for the volatile memory by testing an LVDD margin for the volatile memory, and based on the LVDD value being less than a reference LVDD value for the volatile memory, drive the volatile memory using the LVDD value.