Invention Grant
- Patent Title: Semiconductor memory device
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Application No.: US16751427Application Date: 2020-01-24
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Publication No.: US10971207B2Publication Date: 2021-04-06
- Inventor: Jae-Seung Lee , No-Geun Joo
- Applicant: SK hynix Inc.
- Applicant Address: KR Gyeonggi-do
- Assignee: SK hynix Inc.
- Current Assignee: SK hynix Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: IP & T Group LLP
- Priority: KR10-2017-0046754 20170411
- Main IPC: G11C11/406
- IPC: G11C11/406 ; G11C11/408

Abstract:
A semiconductor memory device includes a first count circuit suitable for counting a first clock signal which continuously toggles in each burst refresh cycle, and generating a first count code signal, based on a burst refresh command signal; a cycle guide circuit suitable for generating a second clock signal which toggles once in each burst refresh cycle, based on the burst refresh command signal and a precharge signal; a second count circuit suitable for counting the second clock signal and generating a second count code signal; and a control circuit suitable for generating a latch control signal for latching a target address in each burst refresh cycle, based on the first count code signal and the second count code signal.
Public/Granted literature
- US20200160904A1 SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2020-05-21
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