Power-on reset circuit for dual supply voltages

    公开(公告)号:US6160431A

    公开(公告)日:2000-12-12

    申请号:US547576

    申请日:2000-04-12

    申请人: Patrick J. Crotty

    发明人: Patrick J. Crotty

    IPC分类号: H03K17/22 H03L7/00

    CPC分类号: H03K17/223

    摘要: A power-on reset circuit is provided which uses a dual voltage detection circuit to output a voltage detection signal. The dual voltage detection circuit is coupled to a first supply voltage terminal, a second supply voltage terminal, and a ground terminal. The voltage detection signal indicates whether the first supply voltage provided on the first supply voltage terminal is greater than an adequate voltage level. Furthermore, the voltage detection signal is driven by circuits powered by a second supply voltage provided on the second supply voltage terminal. One embodiment of the dual-voltage detection circuit comprises a first transistor coupled in series with a second transistor between the first supply voltage terminal and the ground terminal, as well as a third transistor coupled in series with a fourth transistor between the second supply voltage terminal and the ground terminal. Furthermore, some embodiments of the present invention also include a low pass filter coupled to the dual-voltage detection circuit to prevent spurious noise and ground bounces from causing a reset.

    Method and apparatus for configuring the internal memory cells of an integrated circuit
    23.
    发明授权
    Method and apparatus for configuring the internal memory cells of an integrated circuit 有权
    用于配置集成电路的内部存储单元的方法和装置

    公开(公告)号:US08040153B1

    公开(公告)日:2011-10-18

    申请号:US12694169

    申请日:2010-01-26

    IPC分类号: H03K19/177

    CPC分类号: H03M9/00

    摘要: In one embodiment, a method and apparatus for configuring the internal memory cells of an integrated circuit through the logic fabric are disclosed. For example, an integrated circuit according to one embodiment includes a logic fabric and a plurality of input/output blocks coupled to the logic fabric, wherein the plurality of input/output blocks is positioned around the periphery of the logic fabric. The plurality of input/output blocks therefore forms a ring around the logic fabric, wherein a data path and a clock path are formed along the periphery of the logic fabric through the plurality of input/output blocks.

    摘要翻译: 在一个实施例中,公开了一种用于通过逻辑结构配置集成电路的内部存储单元的方法和装置。 例如,根据一个实施例的集成电路包括逻辑结构和耦合到逻辑结构的多个输入/输出块,其中多个输入/输出块位于逻辑结构的外围周围。 因此,多个输入/输出块在逻辑结构周围形成环,其中通过多个输入/输出块沿着逻辑结构的外围形成数据路径和时钟路径。