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参数资料
| 型号： | MPM22CGA800A |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 800 MHz, MICROPROCESSOR, XMA |
| 封装： | MMC-2 |
| 文件页数： | 38/68页 |
| 文件大小： | 966K |
| 代理商： | MPM22CGA800A |
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Pentium
III Processor Mobile Module MMC-2
Featuring Intel
SpeedStep Technology
243356-006
Datasheet
37
3. VR_ON has its VILmax = + 0.4V and VIHmin = +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 VIL to VIH and fall through its VIH to VIL points.
The sign of slope can not change between VIL and VIH in rising and VIH and VILin falling.
7. VR_ON must provide an instantaneous in-rush current to the mobile module with the values
listed in Table 27.
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 27. VR_ON In-rush Current
Instantaneous
DC Operating
Maximum
41.0 mA
0.1
A
Typical
0.2 mA
0.0
A
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