公开(公告)号：US09407265B2

公开(公告)日：2016-08-02

申请号：US14088570

申请日：2013-11-25

Applicant: ARM LIMITED

Inventor： Srinivasan Srinath ,  Ambica Ashok ,  Fakhruddin Ali Bohra

IPC: H03K19/096 ,  H03K19/017 ,  H03K19/00 ,  H03K19/094 ,  G11C11/419 ,  G11C7/12

CPC classification number: H03K19/01721 ,  G11C7/12 ,  G11C11/419 ,  H03K19/0013 ,  H03K19/09429 ,  H03K19/0963

Abstract: An integrated circuit has signal assist circuitry for assisting with pulling a signal on the signal line towards the logical low or high signal level. The signal assist circuitry comprises first and second assist circuits. The first assist circuit couples the signal line to the logical high signal level following a pullup transition of the signal and provides a floating signal level following a pulldown transition, while the second assist circuit provides the floating signal level following the pullup transition and provides the logical low signal level following the pulldown transition. By providing complementary first and second assist circuits, each circuit can be optimized for the opposite transition to achieve improved performance or power consumption.

Abstract translation: 集成电路具有信号辅助电路，用于帮助将信号线上的信号拉向逻辑低或高信号电平。 信号辅助电路包括第一和第二辅助电路。 第一辅助电路在信号的上拉转换之后将信号线耦合到逻辑高信号电平，并且在下拉转换之后提供浮动信号电平，而第二辅助电路在上拉跃迁之后提供浮动信号电平，并提供逻辑 下拉转换后的低信号电平。 通过提供互补的第一和第二辅助电路，每个电路可以针对相反的过渡进行优化，以实现改进的性能或功耗。