Invention Grant
- Patent Title: Semiconductor memory device, a memory module including the same, and a memory system including the same
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Application No.: US14723614Application Date: 2015-05-28
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Publication No.: US09608631B2Publication Date: 2017-03-28
- Inventor: Ki Won Lee , Seung Jun Bae , Joon Young Park , Yong Cheol Bae
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si, Gyeonggi-Do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si, Gyeonggi-Do
- Agency: F. Chau & Associates, LLC
- Priority: KR10-2014-0065149 20140529
- Main IPC: G11C7/00
- IPC: G11C7/00 ; H03K19/00 ; G11C7/10 ; G11C29/02 ; G11C29/50 ; G11C5/14
Abstract:
A semiconductor memory device includes a ZQ calibration unit configured to generate a pull-up VOH code according to a first target VOH proportional to a power supply voltage and an output driver configured to generate a data signal having a VOH proportional to the power supply voltage based on the pull-up VOH code, wherein VOH means “output high level voltage.”
Public/Granted literature
- US20150348603A1 SEMICONDUCTOR MEMORY DEVICE, A MEMORY MODULE INCLUDING THE SAME, AND A MEMORY SYSTEM INCLUDING THE SAME Public/Granted day:2015-12-03
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