会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Synchronous semiconductor memory device
    • 同步半导体存储器件
    • US5822254A
    • 1998-10-13
    • US791034
    • 1997-01-29
    • Yasuji KoshikawaHisashi Abo
    • Yasuji KoshikawaHisashi Abo
    • G11C11/413G11C7/00G11C7/10G11C11/407G11C11/409H01L27/10
    • G11C7/106G11C7/1051G11C7/1069
    • A semiconductor memory device of a synchronous type is disclosed, which has an output control circuit (14) adapted to output signals D2T and D2N by activating one of two conduction control signals D1T or by inactivating both of the conduction control signals in accordance with an output control signal MSK2B or OEB for controlling whether a data output terminal DQ is to be actuated or set into a high impedance, and an output circuit 17 provided with a couple of latch circuits 15 and 16 each adapted to individually latch and output the corresponding conduction control signals in synchronism with an internal synchronizing signal .phi.3. There is further provided an additional latch circuit 13 latching the output control signal in response to an inverted signal of the internal synchronizing signal .phi.3.
    • 公开了一种同步型的半导体存储器件,其具有输出控制电路(14),该输出控制电路(14)适于通过激活两个导通控制信号D1T中的一个来输出信号D2T和D2N,或者通过根据输出来去激活两个导通控制信号 控制信号MSK2B或OEB,用于控制数据输出端子DQ是被启动还是被设置为高阻抗;以及输出电路17,其设置有一对锁存电路15和16,每个锁存电路15和16分别适于锁存和输出相应的导通控制 信号与内部同步信号phi3同步。还提供了一个附加锁存电路13,其响应于内部同步信号phi 3的反相信号来锁存输出控制信号。