公开(公告)号：US07071768B2

公开(公告)日：2006-07-04

申请号：US10628580

申请日：2003-07-29

申请人： Hiroyuki Abe ,  Yutaka Takasuka ,  Hisao Ise ,  Hiroko Takano ,  Sachie Takahashi

发明人： Hiroyuki Abe ,  Yutaka Takasuka ,  Hisao Ise ,  Hiroko Takano ,  Sachie Takahashi

IPC分类号： G05F1/10 ,  G05F3/02

CPC分类号： G11C5/147

摘要： In an integrated circuit having an internal supply voltage generation circuit which generates an internal supply voltage by descending an external supply voltage, there is provided an internal circuit which operates with a supplied internal supply voltage. The internal supply voltage generation circuit changes an internal supply voltage level to be generated in accordance with an operation speed of the internal circuit. Preferably the semiconductor integrated circuit includes a clock control circuit which generates an internal clock signal the frequency of which is controlled in accordance with the operation speed of the internal circuit. When the internal clock signal is controlled to have a higher frequency, the internal supply voltage is controlled to be higher. Also, when the internal clock signal is controlled to have a lower frequency, the internal supply voltage is controlled to be lower.

摘要翻译： 在具有通过降低外部电源电压而产生内部电源电压的内部电源电压产生电路的集成电路中，提供了以所提供的内部电源电压工作的内部电路。 内部电源电压产生电路根据内部电路的运行速度改变要产生的内部电源电压。 优选地，半导体集成电路包括时钟控制电路，其生成内部时钟信号，其频率根据内部电路的操作速度被控制。 内部时钟信号被控制为具有较高的频率时，内部电源电压被控制得更高。 此外，当内部时钟信号被控制为具有较低的频率时，内部电源电压被控制为较低。