| 摘要 |
A semiconductor device and a control method therefor capable of reliably reading control parameter information from an information storage portion and holding the same in an internal circuit upon turning-ON of a power source, in which the fuse reading signal is actuated by a power-ON reset signal POR to start reading for the fuse information and it continues till the first command entry signal. The read out information is defined by the first command entry signal and held in the holding portion. A correct fuse information is read and held at a sufficient power source voltage level and for a sufficient time from the rising of the power source voltage VDD to a predetermined level to a stable voltage level, and erroneous fuse information is not held.
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