公开(公告)号：EP1640995A1

公开(公告)日：2006-03-29

申请号：EP04425724.4

申请日：2004-09-28

Applicant: STMicroelectronics S.r.l.

Inventor： Martines, Ignazio ,  La Placa, Michele

IPC: G11C16/28

CPC classification number: G11C16/28

Abstract: Described herein is a reading circuit (5) for a nonvolatile memory device (1), wherein the currents flowing through an array memory cell (12) to be read, and a reference memory cell (15) with known contents, are converted into an array voltage (V M ) and, respectively, into a reference voltage (V R ), which are compared to determine the contents of the array memory cell (12). The method envisages reducing the electrical stress to which the reference memory cell (15) is subjected during reading, by generating and holding a sample (V 2 ) of the reference voltage (V R ), then deselecting the reference memory cell (15), and then continuing reading using the sample (V 2 ) of the reference voltage (V R ).

Abstract translation: 这里描述了一种用于非易失性存储器件（1）的读取电路（5），其中流过待读取的阵列存储单元（12）的电流和具有已知内容的参考存储单元（15）被转换为 阵列电压（VM）和分别变成参考电压（VR），其被比较以确定阵列存储单元（12）的内容。 该方法设想通过产生和保持参考电压（VR）的样本（V 2），然后取消选择参考存储单元（15），减少参考存储单元（15）在读取期间经受的电应力，以及 然后使用参考电压（VR）的采样（V 2）继续读取。

公开(公告)号：EP1742361A1

公开(公告)日：2007-01-10

申请号：EP05106180.2

申请日：2005-07-07

Applicant: STMicroelectronics S.r.l.

Inventor： La Placa, Michele ,  Martines, Ignazio

IPC: H03K17/16

CPC classification number: H03K19/00384 ,  H03K17/167

Abstract: A self-adaptive output buffer ( 130 ) for an output terminal of an electronic circuit ( 100 ) suitable to be connected to a load ( Cload ) is proposed. The self-adaptive output buffer includes means for sensing ( 205 ) an indication of the capacitance of the load and means for driving ( 210 ) the load according to the sensing, wherein the means for sensing ( 205 ) includes capacitive means ( C S1 ) with a preset capacitance, means ( P S1 , N S1 ) for charging the capacitive means to a preset voltage, means for coupling the charged capacitive means with the load, and means for measuring ( 230 , 225 ) a measuring voltage at the capacitive means due to a charge sharing between the capacitive means ( C S1 ) and the load ( Cload ).

Abstract translation: 提出了一种用于适于连接到负载（Cload）的电子电路（100）的输出端子的自适应输出缓冲器（130）。 自适应输出缓冲器包括用于感测（205）负载的电容的指示的装置和用于根据感测来驱动（210）负载的装置，其中感测装置（205）包括电容装置（C S1） 具有预置电容，用于将电容装置充电到预设电压的装置（P S1，N S1），用于将充电的电容装置与负载耦合的装置，以及用于在电容装置处测量（230,225）测量电压的装置 由于电容装置（C S1）和负载（Cload）之间的电荷共享。

公开(公告)号：EP1736844A1

公开(公告)日：2006-12-27

申请号：EP05425440.4

申请日：2005-06-20

Applicant: STMicroelectronics S.r.l.

Inventor： Martines, Ignazio ,  La Placa, Michele

IPC: G05F3/24

CPC classification number: G05F3/242

Abstract: Herein described is a basic electronic circuit suitable for generating a magnitude (Iref; T). The circuit has certain structural characteristics and the magnitude undergoes variations in function of the structural characteristics of the circuit. The circuit comprises at least two circuit parts (1, 2; 100, 200) suitable for supplying respective fractions (I1, I2; T1, T2) of the magnitude (Iref; T) and the at least two circuit parts (1, 2; 100, 200) have different structural characteristics.

Abstract translation: 这里描述了适用于产生幅度（Iref; T）的基本电子电路。 该电路具有一定的结构特征，并且幅度经历电路结构特性功能的变化。 该电路包括适于提供幅度（Iref; T）和至少两个电路部分（1,2）的各个分数（I1，I2; T1，T2）的至少两个电路部分（1,2; 100,200） ; 100,200）具有不同的结构特征。

公开(公告)号：EP1742361B1

公开(公告)日：2009-09-09

申请号：EP05106180.2

申请日：2005-07-07

Applicant: STMicroelectronics S.r.l.

Inventor： La Placa, Michele ,  Martines, Ignazio

IPC: H03K17/16

CPC classification number: H03K19/00384 ,  H03K17/167

公开(公告)号：EP1640995B1

公开(公告)日：2009-06-17

申请号：EP04425724.4

申请日：2004-09-28

Applicant: STMicroelectronics S.r.l.

Inventor： Martines, Ignazio ,  La Placa, Michele

IPC: G11C16/28

CPC classification number: G11C16/28

公开(公告)号：EP1653315A1

公开(公告)日：2006-05-03

申请号：EP04105351.3

申请日：2004-10-28

Applicant: STMicroelectronics S.r.l.

Inventor： Pisasale, Michelangelo ,  Gaibotti, Maurizio ,  La Placa, Michele

IPC: G05F1/46 ,  G11C5/14 ,  G05F3/26

CPC classification number: G05F3/262 ,  G11C5/147

Abstract: A voltage down converter (200) includes voltage regulator means (205) receiving a first voltage (Vdd) and having a regulation node for providing a regulated second voltage (Vr) lower than the first voltage, and having a control node for providing a control voltage (Vg) corresponding to the second voltage; and a voltage driver circuit branch (220) receiving the first voltage and including a variable-conductivity element (Tsb) having a control terminal coupled to the control node for controlling a current sunk by the variable-conductivity element from the first voltage; The voltage driver circuit branch has a voltage supply node (Vo), for supplying a down-converted voltage (Vo) corresponding to the second voltage, which is decoupled from the regulation node. At least one additional voltage driver circuit branch (225-1 - 225-N) is provided, receiving the first voltage and coupled to the voltage supply node, and including: a further variable-conductivity element (T-1 - T-N) having a control terminal coupled to the control node for controlling a current sunk by the further variable-conductivity element from the first voltage; and switching means (SW-1 - SW-N) for selectively enabling the further variable-conductivity element so as to keep the down-converted voltage at a prescribed value depending on the regulated second voltage.

Abstract translation: 降压转换器（200）包括接收第一电压（Vdd）并具有用于提供低于第一电压的调节的第二电压（Vr）的调节节点的电压调节器装置（205），并具有用于提供控制的控制节点 对应于第二电压的电压（Vg）; 以及电压驱动电路分支（220），其接收所述第一电压并且包括具有耦合到所述控制节点的控制端的可变导电性元件（Tsb），用于控制由所述可变电导率元件从所述第一电压引起的电流下降; 电压驱动器电路分支具有电压供应节点（Vo），用于提供与调节节点分离的对应于第二电压的下变频电压（Vo）。 提供至少一个额外的电压驱动器电路分支（225-1-225-N），接收第一电压并耦合到电压供应节点，并且包括：另一可变导电元件（T-1-TN），其具有 控制端子，其耦合到所述控制节点，用于通过所述另一可变电导率元件从所述第一电压控制当前的下沉; 以及切换装置（SW-1-SW-N），用于选择性地使能另外的可变导电性元件，以便根据调节的第二电压将下变频电压保持在规定值。