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450NX Datasheet, PDF (128/248 Pages) Intel Corporation – Intel 450NX PCIset
12. Electrical Characteristics
3.3V
VCC_PCI
HCLKIN
PWRGD
RESET#
CRESET#
<=100ns
Figure 12-1: PWRGD Relationship
The PWRGD inputs to the Intel® 450NX PCIset and to the Pentium® II Xeon™ processor(s)
should be driven with an “AND” of ‘Power-Good’ signals from the 5 V, 3.3 V and VCCcoreP
supplies. The output of this logic should be a 3.3 V level and should have a pull-down resistor
at the output to cover the period when this logic is not receiving power.
12-4
Intel® 450NX PCIset