公开(公告)号：US06275435B1

公开(公告)日：2001-08-14

申请号：US09282757

申请日：1999-03-31

申请人： Jason Su ,  Ching-Hua Hsiao ,  Lidon Chen ,  Howard C. Kirsh

发明人： Jason Su ,  Ching-Hua Hsiao ,  Lidon Chen ,  Howard C. Kirsh

IPC分类号： G11C702

CPC分类号： G11C7/1072 ,  G11C7/065

摘要： A sense amplifier (SA) stage includes a single SA used to selectively sense signals from both directions in a datapath. The SA is connected to detect the differential signal present at a pair of sense nodes on the datapath. A first pair of switches is inserted in the datapath between the sense nodes and a first transfer port (FTP). A first equalizer is connected to the differential lines at points between the first pair of switches and the FTP. A second pair of switches is inserted in the datapath between the sense nodes and a second transfer port (STP), with a second equalizer connected to the differential lines between the second pair of switches and the STP. Before transferring data from the FTP to the STP, the first equalizer is turned on while the first pair of switches is turned off. While the data is being developed at the FTP, the first equalizer is turned off, the first pair of switches is turned on, the second pair of switches is off, and the second equalizer is on. Then the first pair of switches is turned off, the first equalizer is turned on, and the SA is enabled. While the SA is enabled, the second pair of switches is turned on and the second equalizer is turned off. The SA senses and drives the data signal to the STP. To transfer data from the STP to the FTP, this same sequence is performed, replacing “first” for “second” and vice versa.

摘要翻译： 读出放大器（SA）级包括用于在数据路径中选择性地感测来自两个方向的信号的单个SA。 SA连接以检测存在于数据路径上的一对感测节点处的差分信号。 第一对交换机被插入到传感节点和第一传输端口（FTP）之间的数据路径中。 在第一对开关和FTP之间的点处，第一均衡器连接到差分线。 第二对开关插入在感测节点和第二传送端口（STP）之间的数据通路中，第二均衡器连接到第二对开关和STP之间的差分线路。 在将数据从FTP传输到STP之前，第一个均衡器被打开，而第一对开关被关闭。 当数据正在FTP开发中时，第一个均衡器被关闭，第一对开关打开，第二对开关关闭，第二个均衡器开启。 然后关闭第一对开关，第一个均衡器打开，SA被使能。 当启用SA时，第二对开关打开，第二个均衡器关闭。 SA感应并驱动数据信号到STP。 要将数据从STP传输到FTP，执行相同的顺序，将“first”替换为“second”，反之亦然。