公开(公告)号：US11676650B2

公开(公告)日：2023-06-13

申请号：US17362822

申请日：2021-06-29

Applicant: Micron Technology, Inc.

Inventor： Kazutaka Miyano ,  Yasuo Satoh ,  Kenji Mae

IPC: G11C7/00 ,  G11C11/406 ,  H03L7/081

CPC classification number: G11C11/40615 ,  H03L7/0812

Abstract: A semiconductor device may include a delay locked loop (DLL) control circuit coupled to an update trigger generator and a DLL update circuit. The DLL control circuit may receive an update trigger signal and an internal refresh signal and configured to activate the DLL update circuit responsive to an update trigger in the update trigger signal and deactivate the DLL update circuit responsive to an active internal refresh signal. The DLL update circuit may perform DLL update to one or more memory cell arrays when activated and not perform DLL update to the memory cell arrays when deactivated. The DLL control circuit may reactivate the DLL update circuit once the internal refresh signal becomes inactive. In other scenarios, once the DLL update circuit is deactivated, the DLL update circuit stays deactivated until the next update trigger in the update trigger signal.

公开(公告)号：US20210065782A1

公开(公告)日：2021-03-04

申请号：US16559344

申请日：2019-09-03

Applicant: Micron Technology, Inc.

Inventor： Kazutaka Miyano ,  Yasuo Satoh ,  Kenji Mae

IPC: G11C11/406 ,  H03L7/081

Abstract: A semiconductor device may include a delay locked loop (DLL) control circuit coupled to an update trigger generator and a DLL update circuit. The DLL control circuit may receive an update trigger signal and an internal refresh signal and configured to activate the DLL update circuit responsive to an update trigger in the update trigger signal and deactivate the DLL update circuit responsive to an active internal refresh signal. The DLL update circuit may perform DLL update to one or more memory cell arrays when activated and not perform DLL update to the memory cell arrays when deactivated. The DLL control circuit may reactivate the DLL update circuit once the internal refresh signal becomes inactive. In other scenarios, once the DLL update circuit is deactivated, the DLL update circuit stays deactivated until the next update trigger in the update trigger signal.

公开(公告)号：US20210358541A1

公开(公告)日：2021-11-18

申请号：US17362822

申请日：2021-06-29

Applicant: Micron Technology, Inc.

Inventor： Kazutaka Miyano ,  Yasuo Satoh ,  Kenji Mae

IPC: G11C11/406 ,  H03L7/081

Abstract: A semiconductor device may include a delay locked loop (DLL) control circuit coupled to an update trigger generator and a DLL update circuit. The DLL control circuit may receive an update trigger signal and an internal refresh signal and configured to activate the DLL update circuit responsive to an update trigger in the update trigger signal and deactivate the DLL update circuit responsive to an active internal refresh signal. The DLL update circuit may perform DLL update to one or more memory cell arrays when activated and not perform DLL update to the memory cell arrays when deactivated. The DLL control circuit may reactivate the DLL update circuit once the internal refresh signal becomes inactive. In other scenarios, once the DLL update circuit is deactivated, the DLL update circuit stays deactivated until the next update trigger in the update trigger signal.

公开(公告)号：US11049543B2

公开(公告)日：2021-06-29

申请号：US16559344

申请日：2019-09-03

Applicant: Micron Technology, Inc.

Inventor： Kazutaka Miyano ,  Yasuo Satoh ,  Kenji Mae

IPC: G11C7/00 ,  G11C11/406 ,  H03L7/081

Abstract: A semiconductor device may include a delay locked loop (DLL) control circuit coupled to an update trigger generator and a DLL update circuit. The DLL control circuit may receive an update trigger signal and an internal refresh signal and configured to activate the DLL update circuit responsive to an update trigger in the update trigger signal and deactivate the DLL update circuit responsive to an active internal refresh signal. The DLL update circuit may perform DLL update to one or more memory cell arrays when activated and not perform DLL update to the memory cell arrays when deactivated. The DLL control circuit may reactivate the DLL update circuit once the internal refresh signal becomes inactive. In other scenarios, once the DLL update circuit is deactivated, the DLL update circuit stays deactivated until the next update trigger in the update trigger signal.

公开(公告)号：US10902904B1

公开(公告)日：2021-01-26

申请号：US16568082

申请日：2019-09-11

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Shingo Mitsubori ,  Kenji Mae

IPC: G11C11/4093 ,  G11C7/22 ,  G11C7/10 ,  G11C11/4076 ,  H03K19/20

Abstract: Apparatuses and methods for providing multiphase clocks are disclosed. An example apparatus includes a plurality of clock circuits, each configured to provide one of the multiphase clocks responsive to a respective input clock. The apparatus further includes first and second control circuits. The first control circuit receives a first one of the multiphase clocks and a reset signal provided to the plurality of clock circuits, and provides a first control signal to reset a clock circuit of the plurality of clock circuits that is based on the first one of the multiphase clocks and the reset signal. The second control circuit receives the control clock and a second one of the multiphase clocks and provides a second control signal to clock the clock circuit of the plurality of clock circuits that is based on the control clock and the second one of the multiphase clocks.