®
MOBILE PENTIUM PROCESSOR WITH MMX™ TECHNOLOGY
Table 13. Power Dissipation Requirements for Thermal Design
Parameter
Typical1
Max2
Unit
Frequency
Notes
Thermal Design Power
4.1
5.0
5.5
7.6
Watts
Watts
Watts
Watts
166 MHz
200 MHz
233 MHz
266 MHz
Active Power5
2.3
2.7
3.0
4.5
Watts
Watts
Watts
Watts
166 MHz
200 MHz
233 MHz
266 MHz
Stop Grant / Auto Halt Powerdown
Power Dissipation3
0.42
0.46
0.53
0.70
Watts
Watts
Watts
Watts
166 MHz
200 MHz
233 MHz
266 MHz
Stop Clock Power4
0.02
0.02
0.02
0.05
0.05
0.05
0.06
Watts
Watts
Watts
Watts
166 MHz
200 MHz
233 MHz
266 MHz
NOTES:
1.
This is the typical power dissipation in a system. This value is expected to be the average value that will be measured in
a system using a typical device at VCC2 = 1.8V (166/200/233 MHz) or 2.0V (266 MHz) running typical applications. This
value is highly dependent upon the specific system configuration. Typical power specifications are not tested.
2.
Systems must be designed to thermally dissipate the maximum thermal design power unless the system uses thermal
feedback to limit processor’s maximum power. The maximum thermal design power is determined using a worst-case
instruction mix with VCC2 = 1.8V (166/200/233 MHz) or 2.0V (266 MHz) and also takes into account the thermal time
constant of the package.
3.
Stop Grant/Auto Halt Powerdown Power Dissipation is determined by asserting the STPCLK# pin or executing the HALT
instruction. When in this mode, the processor has a new feature which allows it to power down additional circuitry to
enable lower power dissipation. This is the power without snooping at Vcc2 = 1.8V/2.0V and with TR12 bit 21 set. In
order to enable this feature, TR12 bit 21 must be set to 1 (the default is 0 or disabled). Stop grant/Auto Halt Powerdown
power dissipation without TR12 bit21 set may be higher. The Max rating may be changed in future spec update.
4.
5.
Stop Clock Power Dissipation is determined by asserting the STPCLK# pin and then removing the external CLK input.
This is specified at a Tcase of 50 ºC.
Active power is the average power measured in a system using a typical device running typical applications under
normal operating conditions at nominal Vcc and room temperature.
33
INTEL [ INTEL ]
