Patent ID: 6967521

Claim:
A temperature detecting circuit, comprising: a first delay means for outputting a reference signal that is delayed by some time according to an input signal without being affected by variation in temperature; a second delay means for delaying the input signal in different delay time according to variation in temperature to generate a plurality of delay signals; a detecting means for comparing the reference signal and the plurality of the delay signals, respectively, and generating a plurality of detecting signals corresponding to the result of the comparison; an encoder for encoding the plurality of the detecting signals into given numbers of output signals; a buffer for outputting the output signal of the encoder to the outside; and a select means coupled to the buffer, is programmed according to a fuse information, for outputting a plurality of output signals to the detecting means according to a program state, wherein the detecting means outputs one of the detecting signals in response to the output signals of the select means after the select means is programmed.