View mic280 datasheet:

MIC280 Micrel MIC280 Precision IttyBitty™ Thermal Supervisor Final Information General Description Features The MIC280 is a digital thermal supervisor capable of mea- • Measures local and remote temperature suring its own internal temperature and that of a remote PN • Highly accurate remote sensing junction. The remote junction may be an inexpensive com- ±1°C max., 60°C to 100°C modity transistor, e.g., 2N3906, or an embedded thermal • Superior noise immunity for reduced temperature diode such as found in Intel Pentium* II/III/IV CPUs, AMD guardbands Athlon* CPUs, and Xilinx Virtex* FPGA's. A 2-wire SMBus* • 9-bit to 12-bit temperature resolution for remote zone 2.0 compatible serial interface is provided for host communi- • Fault queues to further reduce nuisance tripping cati