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    • 78. 发明申请
    • POWER-UP AND POWER-DOWN CIRCUIT FOR SYSTEM-ON-A-CHIP INTEGRATED CIRCUIT
    • 用于系统级芯片集成电路的上电和掉电电路
    • US20060284324A1
    • 2006-12-21
    • US11467279
    • 2006-08-25
    • Gregory Bakker
    • Gregory Bakker
    • H01L23/52
    • G11C5/147H01L2924/0002H03K17/22Y10T307/50Y10T307/724H01L2924/00
    • A power-up and power-down circuit for an integrated circuit includes a voltage regulator set for a first voltage. A first I/O pad is coupled internally to an input to the voltage regulator and to first internal circuits. The second voltage is externally coupled to the first I/O pad. A second I/O pad is coupled internally to an output of the voltage regulator configured to drive the base of an external transistor. A third I/O pad of the integrated circuit is coupled internally to a reference-voltage input of the voltage regulator. A fourth I/O pad is coupled to a feedback input of the voltage regulator. A fifth I/O pad of the integrated circuit is coupled internally to logic circuitry that controls power-up and power down of the integrated circuit from internal signals including internal signals from a real-time clock circuit disposed on the integrated circuit.
    • 用于集成电路的上电和掉电电路包括用于第一电压的电压调节器。 第一个I / O焊盘内部耦合到电压调节器和第一个内部电路的输入端。 第二电压外部耦合到第一I / O焊盘。 第二I / O焊盘内部耦合到被配置为驱动外部晶体管的基极的电压调节器的输出端。 集成电路的第三个I / O焊盘内部耦合到电压调节器的参考电压输入端。 第四I / O焊盘耦合到电压调节器的反馈输入端。 集成电路的第五个I / O焊盘内部耦合到逻辑电路,该逻辑电路从包括设置在集成电路上的实时时钟电路的内部信号的内部信号控制集成电路的上电和掉电。