发明名称 |
Memory and memory system for periodic targeted refresh |
摘要 |
A memory includes a plurality of word lines, a target address generation unit generating one or more target addresses by using a stored address, a refresh control section activating a refresh signal in response to a refresh command that is periodically inputted and periodically activating the refresh signal in a self-refresh mode, a target refresh control section activating a target refresh signal when the refresh signal is activated M times, wherein the M is a natural number, and deactivating the target refresh signal in the self-refresh mode, and a row control section sequentially refresh a plurality of first word lines in response to the refresh signal and refreshing a second word line corresponding to the target address in response to the refresh signal when the target refresh signal is activated. |
申请公布号 |
US9311985(B2) |
申请公布日期 |
2016.04.12 |
申请号 |
US201414298581 |
申请日期 |
2014.06.06 |
申请人 |
SK Hynix Inc. |
发明人 |
Lee Yo-Sep;Song Choung Ki |
分类号 |
G11C11/401;G11C11/406;G11C7/02;G11C11/408 |
主分类号 |
G11C11/401 |
代理机构 |
IP & T Group LLP |
代理人 |
IP & T Group LLP |
主权项 |
1. A memory comprising:
a plurality of word lines; a target address generation unit configured to generate one or more target addresses by using a stored address; a refresh control section configured to activate a refresh signal in response to a refresh command that is periodically inputted, and periodically activate the refresh signal in a self-refresh mode; a target refresh control section configured to activate a target refresh signal when the refresh signal is activated M times, wherein M is a natural number, and deactivate the target refresh signal in the self-refresh mode in which the refresh command is not inputted; and a row control section sequentially refresh a plurality of first word lines in response to the refresh signal, and refresh a second word line corresponding to the target address in response to the refresh signal when the target refresh signal is activated. |
地址 |
Gyeonggi-do KR |