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| 型號： | pentium III processor |
| 廠商： | Intel Corp. |
| 英文描述： | 32 bit Processor Mobile Module(32 位帶移動模塊處理器) |
| 中文描述： | 32位處理器的移動模塊（32位帶移動模塊處理器） |
| 文件頁數(shù)： | 42/67頁 |
| 文件大小： | 834K |
| 代理商： | PENTIUM III PROCESSOR |
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Pentium
III Processor Mobile Module MMC-2
Featuring Intel
SpeedStep
Technology
36
Datasheet
243356-005
3.
VR_ON has its V
ILmax
= + 0.4V and V
IHmin
= +3.0V.
4.
The VR_PWRGD will get asserted to logic high (3.3V) after V_CORE is stabilized and V_DC
reaches 7.5V. This signal should not and can not be pulled up by the system electronics.
5.
In the power-on process, Intel recommends to raise the higher voltage power plane first
(V_DC), followed by the lower power planes (V_5, V_3), and finally assert VR_ON after
above voltage levels are met on all rails. The power-off process should be the reverse, for
example VR_ON gets deasserted, followed by the lower power planes, and finally the higher
power planes.
6.
VR_ON must monotonically rise through its V
IL
to V
IH
and fall through its V
IH
to V
IL
points.
The sign of slope can not change between V
IL
and V
IH
in rising and V
IH
and V
IL
in falling.
7.
VR_ON must provide an instantaneous in-rush current to the mobile module with the values
listed in
Table 26
.
8.
VR_ON Valid-Low Time: This specifies how long VR_ON needs to be low for a valid OFF
before VR_ON can be turned back on again. In going from a valid ON to OFF and then back
ON, the following conditions must be met to prevent damage to the system or the mobile
module:
VR_ON must be low for 1.0 mS.
The original voltage level requirements for turn-on must be met before assertion of
VR_ON (i.e. V_DC
≥
7.5V, V_5
≥
4.5V, and V_3
≥
3.0V).
Table 26. VR_ON In-rush Current
Instantaneous
DC Operating
Maximum
41.0 mA
0.1
μ
A
Typical
0.2 mA
0.0
μ
A
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