A voltage generation circuit includes a plurality of rectification circuits configured to be selectively activated depending on a plurality of first control signals, and to generate an internal voltage according to respective reference voltages capable of being independently trimmed depending on a plurality of second control signals; a detection circuit configured to generate a detection signal by comparing a pre-detection signal, generated in each of the plurality of rectification circuits, and a reference signal; and a storage circuit configured to store a pre-select signal provided from an external system, and to output a stored signal to each of the plurality of rectification circuits as the plurality of second control signals.