公开(公告)号：US09224437B2

公开(公告)日：2015-12-29

申请号：US14068653

申请日：2013-10-31

Applicant: GLOBALFOUNDRIES Inc.

Inventor： John E. Barth, Jr. ,  Abraham Mathews ,  Donald W. Plass ,  Kenneth J. Reyer

IPC: G11C7/06 ,  G11C11/4091 ,  G11C7/10 ,  G11C7/12 ,  G11C11/4094

CPC classification number: G11C7/067 ,  G11C7/1048 ,  G11C7/12 ,  G11C11/4091 ,  G11C11/4094

Abstract: A single-ended input sense amplifier uses a pass device to couple the input local bit-line to a global bit-line evaluation node. The sense amplifier also includes a pair of cross-coupled inverters, a first inverter of which has an input that coupled directly to the global bit-line evaluation node. The output of the second inverter is selectively coupled to the global bit-line evaluation node in response to a control signal, so that when the pass device is active, the local bit line charges or discharges the global bit-line evaluation node without being affected substantially by a state of the output of the second inverter. When the control signal is in the other state, the cross-coupled inverter forms a latch. An internal output control circuit of the second inverter interrupts the feedback provided by the second inverter in response to the control signal.

Abstract translation: 单端输入读出放大器使用通过器件将输入的本地位线耦合到全局位线评估节点。 读出放大器还包括一对交叉耦合的反相器，其第一反相器具有直接耦合到全局位线评估节点的输入端。 响应于控制信号，第二反相器的输出选择性地耦合到全局位线评估节点，使得当通过器件有效时，局部位线对全局位线评估节点充电或放电而不受影响 基本上通过第二反相器的输出的状态。 当控制信号处于另一状态时，交叉耦合的反相器形成锁存器。 第二反相器的内部输出控制电路根据控制信号中断由第二反相器提供的反馈。