| 摘要 |
In a semiconductor integrated circuit, a temperature sensor circuit includes a pulse source for generating a count pulse and a resistor having a resistance changing dependently upon a temperature change. The temperature detecting circuit is configured to convert the change of the resistance of the resistor responding to the temperature change, into the pulse number of the count pulses, in response to each application of a temperature measuring signal having a first frequency, in order to generate a count signal. A counter counts the count signal and accumulates a count value for each temperature measuring signal so as to hold the accumulated count value. The counter outputs the accumulated count value in response to a reset signal having a second frequency lower than the first frequency. The counter is then reset by the reset signal.
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