公开(公告)号：US20140340133A1

公开(公告)日：2014-11-20

申请号：US14276567

申请日：2014-05-13

Applicant: STMicroelectronics (Crolles 2) SAS ,  STMicroelectronics Pvt. Ltd.

Inventor： Gilles Gasiot ,  Sylvain Clerc ,  Junaid Yousuf ,  Maximilien Glorieux

IPC: H03K19/003 ,  H03L7/08

CPC classification number: H03K19/0033 ,  G11C5/005 ,  H03K3/0375 ,  H03K3/356121 ,  H03L7/08 ,  H03L7/0891 ,  H03L7/0896 ,  H03L7/095 ,  H03L7/18

Abstract: A circuit including a data storage element; first and second input circuitry coupled respectively to first and second inputs of the data storage element and each including a plurality of components adapted to generate, as a function of an initial signal, first and second input signals respectively provided to the first and second inputs; wherein the data storage element includes a first storage node and is configured such that a voltage state stored at the first storage node is protected from a change in only one of the first and second input signals by being determined by the conduction state of a first transistor coupled to the first storage node and controlled based on the first input signal and by the conduction state of a second transistor coupled to the first storage node and controlled based on the second input signal.

Abstract translation: 一种包括数据存储元件的电路; 第一和第二输入电路分别耦合到数据存储元件的第一和第二输入端，并且每个输入电路包括适于产生分别提供给第一和第二输入的第一和第二输入信号作为初始信号的函数的多个分量; 其中所述数据存储元件包括第一存储节点，并且被配置为使得通过由第一晶体管的导通状态来确定存储在所述第一存储节点处的电压状态以防止所述第一和第二输入信号中仅一个的变化 耦合到所述第一存储节点并且基于所述第一输入信号以及耦合到所述第一存储节点的第二晶体管的导通状态并基于所述第二输入信号进行控制。

公开(公告)号：US08933737B1

公开(公告)日：2015-01-13

申请号：US14046041

申请日：2013-10-04

Applicant: STMicroelectronics (Crolles 2) SAS ,  STMicroelectronics International N.V.

Inventor： Kallol Chatterjee ,  Nitin Agarwal ,  Junaid Yousuf ,  Nitin Gupta ,  Pierre Dautriche

IPC: H03L7/06 ,  H03L7/095

CPC classification number: H03L7/095

Abstract: A variable frequency clock generator. In aspects, a clock generator includes a droop detector circuit configured to monitor a voltage supply to an integrated circuit. If the supply voltage falls below a specific threshold, a droop voltage flag may be set such that a frequency-locked loop is triggered into a droop voltage mode for handling the voltage droop at the supply voltage. In response, a current control signal that is input to an oscillator that generates a system clock signal is reduced by sinking current away from the current control signal to the oscillator. This results in an immediate reduction on the system clock frequency. Such a state remains until the voltage droop has dissipated when the current path is removed for sinking some of the current.

Abstract translation: 变频时钟发生器。 在方面中，时钟发生器包括下垂检测器电路，其被配置为监视对集成电路的电压供应。 如果电源电压低于特定阈值，则可以设置下降电压标志，使得频率锁定环路被触发到用于处理电源电压的电压下降的下降电压模式。 作为响应，通过将电流从电流控制信号吸收到振荡器来减小输入到产生系统时钟信号的振荡器的电流控制信号。 这将立即降低系统时钟频率。 当去除电流路径以吸收一些电流时，这种状态保持直到电压下降消散。