Intel III 450 MHz 80525PY450512 Fiche De Données
Codes de produits
80525PY450512
Datasheet
53
Thermal Specifications and Design Considerations
4.1.1
Thermal Diode
The Pentium III processor incorporates an on-die diode that may be used to monitor the die
temperature (junction temperature). A thermal sensor located on the baseboard, or a stand-alone
measurement kit, may monitor the die temperature of the Pentium III processor for thermal
management or instrumentation purposes.
temperature (junction temperature). A thermal sensor located on the baseboard, or a stand-alone
measurement kit, may monitor the die temperature of the Pentium III processor for thermal
management or instrumentation purposes.
provide the diode parameter and
interface specifications.
NOTES:
1. Intel does not support or recommend operation of the thermal diode under reverse bias.
2. At room temperature with a forward bias of 630 mV.
3. n_ideality is the diode ideality factor parameter, as represented by the diode equation:
2. At room temperature with a forward bias of 630 mV.
3. n_ideality is the diode ideality factor parameter, as represented by the diode equation:
I=Io(e (Vd*q)/(nkT) – 1).
4. This specification applies to the Pentium III processor with CPUID=067xh.
5. This specification applies to the Pentium III processor with CPUID=068xh.
5. This specification applies to the Pentium III processor with CPUID=068xh.
Table 27. Thermal Diode Parameters
Symbol
Min
Typ
Max
Unit
Notes
1
I
forward bias
5
500
µA
n_ideality
1.0000
1.0057
1.0057
1.0065
1.0080
1.0080
1.0173
1.0125
1.0125
2, 3, 4
2, 3, 5
2, 3, 5
Table 28. Thermal Diode Interface
Pin Name
SC 242 Connector Signal #
Pin Description
THERMDP
B14
diode anode (p_junction)
THERMDN
B15
diode cathode (n_junction)