Memory cell and memory
    1.
    发明授权
    Memory cell and memory 有权
    内存单元和内存

    公开(公告)号:US09496047B2

    公开(公告)日:2016-11-15

    申请号:US14011606

    申请日:2013-08-27

    IPC分类号: G11C7/12 G11C17/08 G11C7/20

    CPC分类号: G11C17/08 G11C7/20

    摘要: In various embodiments, a memory cell and a memory are provided. The memory cell comprises a Static Random Access Memory (SRAM) cell including a reset-set (RS) flip-flop and a Read Only Memory (ROM) cell being connected (or coupled) to the SRAM cell to set logic states of internal latch nodes of the RS flip-flop when the ROM cell is triggered. The size of the memory cells proposed in an embodiment of the invention is much smaller than the sum of the size of ROM cells and the size of SRAM cells with the capacity of the memory cells same as the sum of the capacity of the ROM cells and the capacity of the SRAM cells.

    摘要翻译: 在各种实施例中,提供存储器单元和存储器。 该存储单元包括一个静态随机存取存储器(SRAM)单元,它包括复位(RS)触发器和只读存储器(ROM)单元,该单元被连接(或耦合)到SRAM单元以设置内部锁存器的逻辑状态 当触发ROM单元时,RS触发器的节点。 在本发明的实施例中提出的存储器单元的尺寸远小于ROM单元的尺寸和SRAM单元的尺寸的总和,其中存储器单元的容量与ROM单元的容量和 SRAM单元的容量。

    Active bit line charge keeper
    2.
    发明授权
    Active bit line charge keeper 有权
    有源位线充电器

    公开(公告)号:US07626878B1

    公开(公告)日:2009-12-01

    申请号:US11838818

    申请日:2007-08-14

    IPC分类号: G11C7/12

    CPC分类号: G11C7/12 G11C11/413

    摘要: One embodiment of the present invention sets forth an active bit line charge keeper circuit for improving the reliability of a static random access memory (SRAM) circuit. The active bit line charge keeper circuit includes two sub-circuits, each disposed between bit line pairs within the SRAM circuit. The first sub-circuit mitigates residual state associated with over-developed read state on the bit lines. The second sub-circuit mitigates the effects of residual state associated with reading one value on a given pair of bit lines and subsequently writing a different value. By mitigating the effects of residual state within an SRAM circuit, higher reliability at a given performance level may be achieved.

    摘要翻译: 本发明的一个实施例提出了一种用于提高静态随机存取存储器(SRAM)电路的可靠性的有源位线电荷保持器电路。 有源位线电荷保持电路包括两个子电路,每个子电路设置在SRAM电路内的位线对之间。 第一个子电路减轻了与位线上的超显影读取状态相关联的残余状态。 第二子电路减轻与给定的一对位线读取一个值相关联的残余状态的影响,并随后写入不同的值。 通过减轻SRAM电路中的残留状态的影响,可以在给定的性能水平下实现更高的可靠性。

    GENERIC FLEXIBLE TIMER DESIGN
    3.
    发明申请
    GENERIC FLEXIBLE TIMER DESIGN 有权
    一般灵活的定时器设计

    公开(公告)号:US20090045847A1

    公开(公告)日:2009-02-19

    申请号:US11838171

    申请日:2007-08-13

    IPC分类号: H03K19/00

    摘要: One embodiment of the present invention sets forth a set of three building block circuits for designing a flexible timing generator for an integrated circuit. The first and second building blocks include delay elements that may be customized and fine-tuned prior to fabrication. The third building block may be tuned prior to fabrication as well as after fabrication. The three building blocks may be incorporated into a modular architecture, enabling designers to easily generate well-characterized, flexible, generic timer circuits.

    摘要翻译: 本发明的一个实施例提出了一组用于设计用于集成电路的灵活定时发生器的构建块电路。 第一和第二构造块包括在制造之前可以定制和微调的延迟元件。 第三构建块可以在制造之前以及制造之后进行调整。 三个构建块可以并入模块化架构,使设计人员能够轻松地生成良好表征的,灵活的通用定时器电路。

    Low power single rail input voltage level shifter
    4.
    发明授权
    Low power single rail input voltage level shifter 有权
    低功率单轨输入电压电平转换器

    公开(公告)号:US07839170B1

    公开(公告)日:2010-11-23

    申请号:US12404183

    申请日:2009-03-13

    IPC分类号: H03K19/0175 H03L5/00

    CPC分类号: H03K3/356182

    摘要: One embodiment of the present invention sets forth a technique for shifting the voltage level of signals from a low voltage domain to a high voltage domain, where VDDH is the supply voltage of the high voltage domain and VDDL is the supply voltage of the low voltage domain. A level shifting circuit uses a single input rather than dual rail inputs and does not produce a direct current flow in order to reduce the power consumption. The voltage level shifting circuit may also be used to shift a clock signal since the delays of the rising and falling edges of the clock signal are matched by using a delay element.

    摘要翻译: 本发明的一个实施例提出了一种用于将信号从低电压域的电压电平移位到高电压域的技术,其中VDDH是高电压域的电源电压,而VDDL是低电压域的电源电压 。 电平移位电路使用单个输入而不是双轨输入,并且不产生直流电流以便降低功耗。 由于时钟信号的上升沿和下降沿的延迟通过使用延迟元件来匹配,电压电平移位电路也可以用于移位时钟信号。

    Process variation tolerant sense amplifier flop design
    5.
    发明授权
    Process variation tolerant sense amplifier flop design 有权
    过程变化容忍感觉放大器触发器设计

    公开(公告)号:US07768320B1

    公开(公告)日:2010-08-03

    申请号:US11943455

    申请日:2007-11-20

    IPC分类号: G01R19/00 G11C7/00 H03F3/45

    CPC分类号: G11C7/02 G11C7/065 G11C7/067

    摘要: One embodiment of the present invention sets forth a sense amplifier flop design that is tolerant of process variation. Specific staging of signal transitions through the sense amplifier flop circuit eliminate operational phases involving short-circuit currents between n-channel field-effect transistors (N-FETs) and p-channel field effect transistors (P-FETs) in a complementary-symmetry metal-oxide semiconductor process. By eliminating short-circuit currents between N-FETs and P-FETs within the sense amplifier flop, a large variation in conductivity ratio between N-FETs and P-FETs may be tolerated by the sense amplifier flop. This tolerance to conductivity ratio translates to a tolerance for process variation by the sense amplifier flop circuit.

    摘要翻译: 本发明的一个实施例提出了一种容忍工艺变化的读出放大器触发器设计。 通过读出放大器触发电路的信号转换的特定分级消除了涉及互补对称金属中的n沟道场效应晶体管(N-FET)和p沟道场效应晶体管(P-FET)之间涉及短路电流的操作阶段 氧化物半导体工艺。 通过消除读出放大器触发器内的N-FET和P-FET之间的短路电流,可以通过读出放大器触发器容忍N-FET和P-FET之间的大的电导率变化。 这种电导率比容差转换为读出放大器触发电路对工艺变化的容差。

    Apparatus and method for preventing current leakage when a low voltage domain is powered down
    6.
    发明授权
    Apparatus and method for preventing current leakage when a low voltage domain is powered down 有权
    低电压域断电时防止电流泄漏的装置和方法

    公开(公告)号:US07583126B2

    公开(公告)日:2009-09-01

    申请号:US11753501

    申请日:2007-05-24

    IPC分类号: H03L5/00

    CPC分类号: H03K3/356104

    摘要: An apparatus and method are provided for preventing a current leakage or direct current when a low voltage domain is powered down. Included is a voltage transition circuit connected between a low voltage domain and a high voltage domain. Such voltage transition circuit includes a circuit component for preventing a current leakage when the low voltage domain is powered down.

    摘要翻译: 提供了一种用于在低电压域断电时防止电流泄漏或直流电的装置和方法。 包括连接在低电压域和高电压域之间的电压转换电路。 这种电压转换电路包括用于在低电压域断电时防止电流泄漏的电路部件。

    Generic flexible timer design
    7.
    发明授权
    Generic flexible timer design 有权
    通用灵活定时器设计

    公开(公告)号:US07504872B2

    公开(公告)日:2009-03-17

    申请号:US11838171

    申请日:2007-08-13

    IPC分类号: H03H11/26 G06F7/38 H03K19/173

    摘要: One embodiment of the present invention sets forth a set of three building block circuits for designing a flexible timing generator for an integrated circuit. The first and second building blocks include delay elements that may be customized and fine-tuned prior to fabrication. The third building block may be tuned prior to fabrication as well as after fabrication. The three building blocks may be incorporated into a modular architecture, enabling designers to easily generate well-characterized, flexible, generic timer circuits.

    摘要翻译: 本发明的一个实施例提出了一组用于设计用于集成电路的灵活定时发生器的构建块电路。 第一和第二构造块包括在制造之前可以定制和微调的延迟元件。 第三构建块可以在制造之前以及制造之后进行调整。 三个构建块可以并入模块化架构,使设计人员能够轻松地生成良好表征的,灵活的通用定时器电路。

    Low power single-rail-input voltage level shifter
    8.
    发明授权
    Low power single-rail-input voltage level shifter 有权
    低功率单轨输入电压电平转换器

    公开(公告)号:US07830175B1

    公开(公告)日:2010-11-09

    申请号:US12269200

    申请日:2008-11-12

    IPC分类号: H03K19/0175 H03L5/00

    CPC分类号: H03K3/35613

    摘要: An apparatus includes a single-rail input connected to a low-voltage domain and a voltage-transition circuit connected to the single-rail input. The voltage-transition circuit is configured to convert a voltage of the low-voltage domain received via the single-rail input to a voltage of the high-voltage domain.

    摘要翻译: 一种装置包括连接到低电压域的单轨输入和连接到单轨输入的电压转换电路。 电压转换电路被配置为将经由单轨输入接收的低压域的电压转换为高电压域的电压。

    Sequentially-accessed 1R/1W double-pumped single port SRAM with shared decoder architecture
    10.
    发明授权
    Sequentially-accessed 1R/1W double-pumped single port SRAM with shared decoder architecture 有权
    具有共享解码器架构的顺序访问的1R / 1W双泵单端口SRAM

    公开(公告)号:US07643330B1

    公开(公告)日:2010-01-05

    申请号:US11838785

    申请日:2007-08-14

    IPC分类号: G11C11/00

    CPC分类号: G11C11/412 G11C11/413

    摘要: One embodiment of the present invention sets forth a synchronous two-port static random access memory (SRAM) design with the area efficiency of a one-port SRAM. By restricting both access ports to an edge-triggered, synchronous clocking regime, the internal timing of the SRAM can be optimized to allow high-performance double-pumped access to the SRAM storage cells. By double-pumping the SRAM storage cells, one read access and one write access are possible per clock cycle, allowing the SRAM to present two external ports, each capable of performing one transaction per clock cycle.

    摘要翻译: 本发明的一个实施例提出了具有单端口SRAM的面积效率的同步双端口静态随机存取存储器(SRAM)设计。 通过将两个接入端口限制在边沿触发的同步时钟状态,可以优化SRAM的内部时序,以允许对SRAM存储单元进行高性能的双重泵浦访问。 通过双抽SRAM存储单元,每个时钟周期可以进行一次读取访问和一次写入访问,从而允许SRAM呈现两个外部端口,每个外部端口可以在每个时钟周期执行一个事务。