公开(公告)号：US20230297239A1

公开(公告)日：2023-09-21

申请号：US17898370

申请日：2022-08-29

Applicant: KIOXIA CORPORATION

Inventor： Kenta SHIBASAKI ,  Yoshihiko SHINDO ,  Yasuhiro HIRASHIMA ,  Akio SUGAHARA ,  Shigeki NAGASAKA ,  Dai NAKAMURA ,  Yousuke HAGIWARA

IPC: G06F3/06

CPC classification number: G06F3/0613 ,  G06F3/0679 ,  G06F3/0653

Abstract: A memory system includes a memory chip and a memory controller. The memory chip includes a storage region that stores setup data used for setup of the memory chip during power on thereof. The memory controller is configured to determine whether or not the memory controller has the setup data, when determining that the memory controller does not have the setup data, instruct the memory chip to read the setup data from the storage region and perform a first setup operation based on the read setup data, and when determining that the memory controller has the setup data, transmit the setup data to the memory chip and instruct the memory chip to perform a second setup operation based on the setup data received from the memory controller.

公开(公告)号：US20240233835A1

公开(公告)日：2024-07-11

申请号：US18408680

申请日：2024-01-10

Applicant: Kioxia Corporation

Inventor： Yoshinao SUZUKI ,  Kazuto SHITARA ,  Kenta SHIBASAKI ,  Noriyasu KUMAZAKI

IPC: G11C16/30 ,  G11C16/04 ,  H02M3/07

CPC classification number: G11C16/30 ,  G11C16/0483 ,  H02M3/07 ,  G11C16/26

Abstract: A semiconductor device includes a regulator circuit, a charge pump circuit, and a control circuit. The regulator circuit is configured to regulate a voltage input from outside and output a regulated voltage. The charge pump circuit is configured to receive the regulated voltage as an input voltage, boost the input voltage, and output a boosted voltage. The control circuit is configured to cause the regulator circuit to vary a voltage level of the regulated voltage based on voltage value information about the voltage input from the outside.