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发明名称
将ZQ校准结果加以反馈的延迟锁定回路电路及具有前述电路之半导体装置DLL CIRCUIT FEEDING BACK ZQ CALIBRATION RESULT, AND SEMICONDUCTOR DEVICE INCORPORATING THE SAME
摘要
一种延迟量可变电路(8),用以根据ZQ校准结果来改变延迟量,其系插置于DQ复制系统的路径中。该DQ复制系统之路径的延迟量可加以改变并调整,以便使DQ缓冲器系统与DQ复制系统之间的时序偏斜差异固定不变。该ZQ校准结果系根据温度、电压、及制造之变化而改变。因此,藉由获得对应于这些变化的延迟量,因而获得能使该偏斜差异固定不变之高精确度DLL电路、以及具有此种DLL电路之半导体装置。
申请公布号
TW200723304
申请公布日期
2007.06.16
申请号
TW095139237
申请日期
2006.10.24
申请人
尔必达存储器股份有限公司
发明人
藤泽宏树;泷下隆治
分类号
G11C7/22(2006.01)
主分类号
G11C7/22(2006.01)
代理机构
代理人
周良谋;周良吉
主权项
地址
日本
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