| 摘要 |
A temperature-compensated internal voltage having a desired compensation range is generated with a sufficient controllability and stability. A temperature characteristic adding circuit generates a standard voltage having temperature dependence from a reference voltage not having temperature dependence. The standard voltage is A/D-converted and then added with standard code information (TN_VREF <4:0>) which specifies the level of the internal voltage. The additional value (TN_VREF2 <4:0>) is D/A-converted to generate an offset voltage having temperature dependence. The internal voltage of a desired level is generated based on the offset voltage.
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