公开(公告)号：EP1324347B1

公开(公告)日：2004-10-27

申请号：EP01830817.1

申请日：2001-12-28

Applicant: STMicroelectronics S.r.l.

Inventor： Giove, Salvatore ,  De Ambroggi, Luca ,  Nicosia, Salvatore ,  Tomaiuolo, Francesco ,  Promod, Kumar ,  Piazza, Giuseppe ,  Pipitone, Francesco

IPC: G11C16/28 ,  G11C7/06

CPC classification number: G11C7/062 ,  G11C7/067 ,  G11C16/28

公开(公告)号：EP1324347A1

公开(公告)日：2003-07-02

申请号：EP01830817.1

申请日：2001-12-28

Applicant: STMicroelectronics S.r.l.

Inventor： Giove, Salvatore ,  De Ambroggi, Luca ,  Nicosia, Salvatore ,  Tomaiuolo, Francesco ,  Promod, Kumar ,  Piazza, Giuseppe ,  Pipitone, Francesco

IPC: G11C16/28 ,  G11C7/06

CPC classification number: G11C7/062 ,  G11C7/067 ,  G11C16/28

Abstract: A circuit (165) is proposed for controlling a reference node (Nr) in a sense amplifier (145) switchable between an operative condition and a stand-by condition, the reference node providing a reference voltage in the operative condition. The circuit includes means (Cp) for bringing the reference node to a starting voltage upon entry into the stand-by condition, first means (Rda1,Rda2) for keeping the reference node at a pre-charging voltage in the stand-by condition, second means (Rdb1,Rdb2) for providing a comparison voltage closer to the pre-charging voltage than the starting voltage, pulling means (Mu1) for pulling the reference node towards a power supply voltage, and control means (210) for activating the pulling means upon entry into the stand-by condition and for disabling the pulling means when the voltage at the reference node reaches the comparison voltage.

Abstract translation: 提出了一种电路（165），用于控制在可操作状态和待机状态之间切换的读出放大器（145）中的参考节点（Nr），该参考节点在操作状态下提供参考电压。 电路包括用于在进入待机状态时使参考节点进入起始电压的装置（Cp），用于在备用状态下将参考节点保持在预充电电压的第一装置（Rda1，Rda2） 用于提供比起始电压更接近预充电电压的比较电压的第二装置（Rdb1，Rdb2），用于将参考节点拉向电源电压的牵引装置（Mu1），以及用于启动牵引 意味着当进入待机状态时，以及当参考节点处的电压达到比较电压时禁止拉动装置。