Invention Grant
- Patent Title: Semiconductor device performing self refresh operation
- Patent Title (中): 执行自刷新操作的半导体器件
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Application No.: US13486706Application Date: 2012-06-01
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Publication No.: US08767497B2Publication Date: 2014-07-01
- Inventor: Mio Marumoto , Sachiko Edo
- Applicant: Mio Marumoto , Sachiko Edo
- Agency: Foley & Lardner LLP
- Priority: JP2011-124269 20110602
- Main IPC: G11C7/00
- IPC: G11C7/00
Abstract:
When refresh activation signals (REFACT0 to REFACT3) are supplied, the internal memory cells in two or more memory banks (0 to 3) are refreshed. A refresh control circuit performs a first refresh control operation to activate a refresh operation in all of the memory banks when an auto refresh command is supplied, and performs a second refresh control operation to activate a refresh operation in a part of the memory banks when a self refresh command is supplied.
Public/Granted literature
- US20120307582A1 SEMICONDUCTOR DEVICE PERFORMING SELF REFRESH OPERATION Public/Granted day:2012-12-06
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