Electrostatic discharge (ESD) protection circuit
    1.
    发明授权
    Electrostatic discharge (ESD) protection circuit 有权
    静电放电(ESD)保护电路

    公开(公告)号:US06385021B1

    公开(公告)日:2002-05-07

    申请号:US09546601

    申请日:2000-04-10

    IPC分类号: H02H322

    CPC分类号: H01L27/0248 H01L27/0266

    摘要: An ESD protection circuit (39) coupled to each of a plurality of I/O circuits (30, 32, 36) of an integrated circuit (31) is disclosed. The ESD protection circuit includes a MOSFET transistor (40) to provide primary ESD protection on occurrence of an ESD event. In one embodiment, the control electrode of the MOSFET transistor is coupled to a first buffer circuit (42). Integrated circuit (31) includes a remote trigger circuit (37) coupled to the ESD protection circuits via a trigger bus (47). The individual ESD protection circuits operate in parallel to provide ESD protection to the I/O circuits (30, 32, and 36) upon occurrence of an ESD event.

    摘要翻译: 公开了一种耦合到集成电路(31)的多个I / O电路(30,32,36)中的每一个的ESD保护电路(39)。 ESD保护电路包括MOSFET晶体管(40),用于在发生ESD事件时提供主要的ESD保护。 在一个实施例中,MOSFET晶体管的控制电极耦合到第一缓冲电路(42)。 集成电路(31)包括经由触发总线(47)耦合到ESD保护电路的远程触发电路(37)。 各个ESD保护电路并联工作,以在ESD事件发生时向I / O电路(30,32和36)提供ESD保护。

    Electrostatic discharge circuit
    2.
    发明授权
    Electrostatic discharge circuit 有权
    静电放电电路

    公开(公告)号:US06327126B1

    公开(公告)日:2001-12-04

    申请号:US09494055

    申请日:2000-01-28

    IPC分类号: H02H900

    CPC分类号: H01L27/0251

    摘要: A circuit (600) provides Electrostatic Discharge (ESD) protection for internal elements in an integrated circuit during an ESD event. The circuit (600) includes cascoded NMOSFETs (614, 616), with the upper NMOSFET (614) connected to voltage divider circuitry (628). The voltage divider circuitry (628) provides a first bias voltage to the gate of the upper NMOSFET (614) during an ESD event and a second bias voltage during normal operation. Preferably, the first bias voltage is approximately ½ of the drain voltage of the upper NMOSFET (614). Under these bias conditions the cascoded NMOSFETs exhibit a maximum voltage threshold for initiation of parasitic lateral bipolar conduction.

    摘要翻译: 电路(600)在ESD事件期间为集成电路中的内部元件提供静电放电(ESD)保护。 电路(600)包括级联的NMOSFET(614,616),其中上部NMOSFET(614)连接到分压器电路(628)。 分压器电路(628)在ESD事件期间向上NMOSFET(614)的栅极提供第一偏置电压,并在正常操作期间提供第二偏置电压。 优选地,第一偏置电压约为上部NMOSFET(614)的漏极电压的1/2。 在这些偏置条件下,级联的NMOSFET表现出用于启动寄生横向双极传导的最大电压阈值。

    Processing system with low power wake-up pad
    4.
    发明授权
    Processing system with low power wake-up pad 有权
    具有低功率唤醒垫的处理系统

    公开(公告)号:US09494987B2

    公开(公告)日:2016-11-15

    申请号:US14093473

    申请日:2013-11-30

    摘要: An integrated circuit includes an input/output pad, an input circuit, and an output circuit. The input circuit is coupled to the input/output pad that receives input signals including a wake-up signal that indicates when the integrated circuit is to switch from a power-down mode to an active mode. The output circuit is coupled to the input/output pad that provides output signals to the input/output pad. The output circuit includes a first P channel transistor in a well having a drain coupled to the input/output pad, and a source coupled to a power supply terminal. The power supply terminal receives a first power supply voltage during the active mode and is decoupled from any power supply during the power-down mode. The well is coupled to the wake-up signal in response to the wake-up signal indicating a change from the power-down mode to the active mode.

    摘要翻译: 集成电路包括输入/​​输出焊盘,输入电路和输出电路。 输入电路耦合到输入/输出焊盘,该输入/输出焊盘接收包括唤醒信号的输入信号,该唤醒信号指示集成电路何时从掉电模式切换到活动模式。 输出电路耦合到输入/输出焊盘,该输入/输出焊盘向输入/输出焊盘提供输出信号。 输出电路包括在阱中的第一P沟道晶体管,其具有耦合到输入/输出焊盘的漏极以及耦合到电源端子的源极。 电源端子在活动模式期间接收第一电源电压,并且在掉电模式期间与任何电源解耦。 响应于唤醒信号,阱被耦合到唤醒信号,该唤醒信号指示从掉电模式到活动模式的改变。

    Controller for controlling a source current to a memory cell, processing system and methods for use therewith
    5.
    发明申请
    Controller for controlling a source current to a memory cell, processing system and methods for use therewith 有权
    用于控制到存储器单元的源电流的控制器,用于其的处理系统和方法

    公开(公告)号:US20070147139A1

    公开(公告)日:2007-06-28

    申请号:US11249963

    申请日:2005-10-13

    申请人: Fujio Takeda

    发明人: Fujio Takeda

    IPC分类号: G11C5/14

    CPC分类号: G11C11/417 G11C5/147

    摘要: A controller for controlling a source current of a memory cell for use in a static random access memory (SRAM) includes a bias generator for supplying a bias current to the memory cell. A read current generator controls the source current to the memory cell to a read current state when a column containing the memory cell is selected.

    摘要翻译: 用于控制用于静态随机存取存储器(SRAM)的存储单元的源电流的控制器包括用于向存储单元提供偏置电流的偏置发生器。 当选择包含存储单元的列时,读取电流发生器将存储器单元的源电流控制到读取当前状态。

    Memory, processing system and methods for use therewith
    6.
    发明授权
    Memory, processing system and methods for use therewith 有权
    记忆,处理系统及其使用方法

    公开(公告)号:US07212458B1

    公开(公告)日:2007-05-01

    申请号:US11257816

    申请日:2005-10-25

    申请人: Fujio Takeda

    发明人: Fujio Takeda

    IPC分类号: G11C7/00

    摘要: A memory includes a selected bitline coupled to the array of memory cells. A column multiplexer passes a signal on the selected bitline to a sense amplifier input in response to a column enable signal. A multiplexer output conditioner discharges the sense amplifier input and a bitline conditioner precharges and readjusts the selected bitline to a precharge threshold. A sense amplifier produces a data output that is based on the sense amplifier input.

    摘要翻译: 存储器包括耦合到存储器单元阵列的选定位线。 列复用器响应于列使能信号将选定位线上的信号传递到读出放大器输入。 多路复用器输出调节器对读出放大器输入进行放电,位线调节器预充电并将所选位线重新调整为预充电阈值。 读出放大器产生基于读出放大器输入的数据输出。

    ESD protection circuit
    7.
    发明授权
    ESD protection circuit 有权
    ESD保护电路

    公开(公告)号:US07164565B2

    公开(公告)日:2007-01-16

    申请号:US10723965

    申请日:2003-11-26

    申请人: Fujio Takeda

    发明人: Fujio Takeda

    IPC分类号: H02H3/22

    CPC分类号: H01L27/0251

    摘要: An ESD protection circuit for an integrated circuit includes an ESD clamping circuit, an ESD triggering circuit, and an ESD disabling circuit. The ESD clamping circuit is operably coupled to a first power pin of the integrated circuit and a second power pin of the integrated circuit. The ESD triggering circuit is operably coupled to the ESD clamping circuit, wherein, when enabled and when sensing an ESD event, the ESD triggering circuit provides a clamping signal to the ESD clamping circuit such that the ESD clamping circuit provides a low impedance path between the first and second power pins. The ESD disabling circuit is operably coupled to disable the ESD triggering circuit when the integrated circuit is in a normal operating mode.

    摘要翻译: 用于集成电路的ESD保护电路包括ESD钳位电路,ESD触发电路和ESD禁用电路。 ESD钳位电路可操作地耦合到集成电路的第一电源引脚和集成电路的第二电源引脚。 ESD触发电路可操作地耦合到ESD钳位电路,其中当使能并且当感测到ESD事件时,ESD触发电路向ESD钳位电路提供钳位信号,使得ESD钳位电路在该ESD钳位电路之间提供低阻抗路径 第一和第二电源引脚。 当集成电路处于正常操作模式时,ESD禁用电路可操作地耦合以禁用ESD触发电路。

    Memory, processing system and methods for use therewith
    8.
    发明申请
    Memory, processing system and methods for use therewith 有权
    记忆,处理系统及其使用方法

    公开(公告)号:US20070109890A1

    公开(公告)日:2007-05-17

    申请号:US11652327

    申请日:2007-01-11

    申请人: Fujio Takeda

    发明人: Fujio Takeda

    IPC分类号: G11C7/00

    摘要: A memory includes a selected bitline coupled to the array of memory cells. A column voltage booster produces a boosted column enable signal. A column multiplexer passes a signal on the selected bitline as a sense amplifier input in response to the boosted column enable signal. A sense amplifier produces a data output.

    摘要翻译: 存储器包括耦合到存储器单元阵列的选定位线。 列升压器产生升压列使能信号。 列复用器响应于升压列使能信号,将所选位线上的信号作为读出放大器输入传递。 读出放大器产生数据输出。

    MEMORY, PROCESSING SYSTEM AND METHODS FOR USE THEREWITH
    9.
    发明申请
    MEMORY, PROCESSING SYSTEM AND METHODS FOR USE THEREWITH 有权
    存储器,处理系统及其使用方法

    公开(公告)号:US20070091700A1

    公开(公告)日:2007-04-26

    申请号:US11257816

    申请日:2005-10-25

    申请人: Fujio Takeda

    发明人: Fujio Takeda

    IPC分类号: G11C7/02

    摘要: A memory includes a selected bitline coupled to the array of memory cells. A column multiplexer passes a signal on the selected bitline to a sense amplifier input in response to a column enable signal. A multiplexer output conditioner discharges the sense amplifier input and a bitline conditioner precharges and readjusts the selected bitline to a precharge threshold. A sense amplifier produces a data output that is based on the sense amplifier input.

    摘要翻译: 存储器包括耦合到存储器单元阵列的选定位线。 列复用器响应于列使能信号将选定位线上的信号传递到读出放大器输入。 多路复用器输出调节器对读出放大器输入进行放电,位线调节器预充电并将所选位线重新调整为预充电阈值。 读出放大器产生基于读出放大器输入的数据输出。

    Controller for controlling a source current to a memory cell, processing system and methods for use therewith
    10.
    发明授权
    Controller for controlling a source current to a memory cell, processing system and methods for use therewith 有权
    用于控制到存储器单元的源电流的控制器,处理系统和与其一起使用的方法

    公开(公告)号:US07359254B2

    公开(公告)日:2008-04-15

    申请号:US11249963

    申请日:2005-10-13

    申请人: Fujio Takeda

    发明人: Fujio Takeda

    IPC分类号: G11C5/14

    CPC分类号: G11C11/417 G11C5/147

    摘要: A controller for controlling a source current of a memory cell for use in a static random access memory (SRAM) includes a bias generator for supplying a bias current to the memory cell. A read current generator controls the source current to the memory cell to a read current state when a column containing the memory cell is selected.

    摘要翻译: 用于控制用于静态随机存取存储器(SRAM)的存储单元的源电流的控制器包括用于向存储单元提供偏置电流的偏置发生器。 当选择包含存储单元的列时,读取电流发生器将存储器单元的源电流控制到读取当前状态。