Internal voltage generator of semiconductor integrated circuit
First Claim
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1. An internal voltage generator of a semiconductor integrated circuit, the internal voltage generator comprising:
- a first driver that outputs an internal voltage by using a detection signal generated by using an external voltage and a comparing result between an internal reference voltage and a half-internal voltage which is a divided voltage of the internal voltage during an active operation according to an active enable signal; and
a second driver that outputs the internal voltage by using the internal reference voltage during the active operation in accordance with the active enable signal,wherein the first driver is inactivated and the second driver is activated when the external voltage is more than a predetermined voltage in the active mode.
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Abstract
An internal voltage generator of a semiconductor integrated circuit includes a first driver that outputs an internal voltage by using an internal reference voltage during an active operation in accordance with a detection signal generated by using an external voltage and an active enable signal activated during an activation mode, and a second driver that outputs an internal voltage by using the internal reference voltage during the active operation in accordance with the active enable signal.
31 Citations
21 Claims
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1. An internal voltage generator of a semiconductor integrated circuit, the internal voltage generator comprising:
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a first driver that outputs an internal voltage by using a detection signal generated by using an external voltage and a comparing result between an internal reference voltage and a half-internal voltage which is a divided voltage of the internal voltage during an active operation according to an active enable signal; and a second driver that outputs the internal voltage by using the internal reference voltage during the active operation in accordance with the active enable signal, wherein the first driver is inactivated and the second driver is activated when the external voltage is more than a predetermined voltage in the active mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An internal voltage generator of a semiconductor integrated circuit, the internal voltage generator comprising:
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a level detector that detects a potential level of an external voltage to generate a detection signal; a first driver that generates an internal voltage by using the detection signal and a comparing result between an internal reference voltage and a half-internal voltage which is a divided voltage of the internal voltage according to an active enable signal activated during an active mode; and a second driver that outputs the internal voltage by using the internal reference voltage during the active mode in accordance with the active enable signal, wherein the first driver and the second driver have a different driving force respectively, and the first driver which has a larger driving force than the second driver is inactivated when the external voltage is higher than the internal reference voltage in the active mode. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification