| 摘要 |
A controller of inner voltage generator is provided to reduce power drop phenomenon by distance between an inner voltage generator and a predetermined bank by controlling operation according to the number of activated bank. A controller of inner voltage generator comprises a first inner voltage generator group(420), a first inner voltage generator controller(410), a second inner voltage generator group(440), and a second inner voltage generator controller(430). The first inner voltage generator group includes an inner voltage generator supplying an inner voltage to banks included in a first bank group. The first inner voltage generator controller operates a specific inner voltage generator of the first inner voltage generator group. The second inner voltage generator group supplies an inner voltage to banks included in a second bank group. The second inner voltage generator controller operates a specific inner voltage generator of the second inner voltage generator group.
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