| 摘要 |
A semiconductor memory device includes a temperature sensor. The temperature sensor includes a temperature data signal generator and a temperature signal extractor. The temperature data signal generator generates temperature data signals for respective temperate ranges of internal temperature. The temperature signal extractor receives the temperature data signals and a pulse signal with a predetermined cycle, extracts the temperature data signal that is activated for at least two cycles of the pulse signal, and generates a temperature signal corresponding to the extracted temperature data signal.
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