Intel 1.70 GHz RH80532NC029256 Data Sheet

82 Datasheet

 

298517-006 

The Mobile Intel Celeron Processor has an on-die thermal diode that should be used to monitor the die 
temperature (T

J

).   A thermal sensor located on the motherboard, or a stand-alone measurement kit, 

should monitor the die temperature of the processor for thermal management or instrumentation 
purposes. Table 49 and Table 50 provide the diode interface and specifications.  

The reading of the thermal sensor connected to the thermal diode will not necessarily reflect the 

temperature of the hottest location on the die. This is due to inaccuracies in the thermal sensor, on-die 

temperature gradients between the location of the thermal diode and the hottest location on the die, and 

time based variations in the die temperature measurement.  Time based variations can occur when the 

sampling rate of the thermal diode (by the thermal sensor) is slower than the rate at which the T

J

 

temperature can change.  

THERMDA 

AF13 

Thermal diode anode 

THERMDC 

AF14 

Thermal diode cathode 

n 

Diode Ideality Factor (5-150uA) 

1.0011 1.0067 1.0122  

Notes 1, 2, 3, 4, 6 

n 

Diode Ideality Factor (5-300uA) 

1.0003 1.0091 1.0178  

Notes 1, 2, 3, 5, 6 

NOTES: 

1.  Intel does not support or recommend operation of the thermal diode under reverse bias. Intel does not support 

or recommend operation of the thermal diode when the processor power supplies are not within their specified 
tolerance range. 

2. Characterized at 100°C. 
3.  Not 100% tested. Specified by design/characterization. 
4.  Specified for Forward Bias Current = 5 

µA (min) and 150 µA (max). 

5.  Specified for Forward Bias Current = 5 

µA (min) and 300 µA (max). 

6.  The ideality factor, n, represents the deviation from ideal diode behavior as exemplified by the diode equation: 

Where I

s

 = saturation current, q = electronic charge, V

d

 = voltage across the diode, k = Boltzmann Constant, 

and T = absolute temperature (Kelvin). 













−

⋅

=

1

q

S

FW