US Patent 7394706 Semiconductor integrated circuit device
Patent 7394706 was granted and assigned to Renesas Technology Corp on July, 2008 by the United States Patent and Trademark Office.
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A semiconductor integrated circuit device with reduced consumption current is provided. A first step-down circuit stationarily forms internal voltage lower than supply voltage supplied through an external terminal. A second step-down circuit is switched between first mode and second mode according to control signals. In first mode, the internal voltage is formed from the supply voltage supplied through the external terminal and is outputted through a second output terminal. In second mode, operating current for a control system that forms the internal voltage is interrupted and an output high impedance state is established. The first output terminal of the first step-down circuit and the second output terminal of the second step-down circuit are connected in common, and the internal voltage is supplied to internal circuits.
US Patent 07394706 Semiconductor integrated circuit device US Patent 7394706 Semiconductor integrated circuit device
US Patent 07394706 Semiconductor integrated circuit device
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