| 摘要 |
An internal voltage generating circuit is provided to generate an internal voltage with a desired level through a reference voltage applied from the outside, by decreasing the level of a reference voltage generated internally or preventing the generated reference voltage from being transmitted. A reference voltage generation part(20) generates a first reference voltage by dividing an internal signal according to resistance ratio controlled in response to a test mode signal. An internal voltage generation part(24) generates an internal voltage by receiving the first reference voltage and a second reference voltage inputted through a pad. The reference voltage generation part includes a voltage trimming part and a buffer part. The voltage trimming part generates a trimming voltage by trimming the internal signal, and controls the level of the trimming voltage in response to a test mode signal. The buffer part generates the first reference voltage by buffering the trimming voltage.
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