Intel N450 AU80610004653AA User Manual
Product codes
AU80610004653AA
Electrical Specifications
38
Datasheet
The processor utilizes differential clocks to generate the processor core(s) and memory
controller frequency, and other internal clocks. The processor core frequency is
determined by multiplying the processor core ratio by 166MHz. Clock multiplying within
the processor is provided by an internal phase locked loop (PLL), which requires a
constant frequency input, with exceptions for Spread Spectrum Clocking (SSC).
controller frequency, and other internal clocks. The processor core frequency is
determined by multiplying the processor core ratio by 166MHz. Clock multiplying within
the processor is provided by an internal phase locked loop (PLL), which requires a
constant frequency input, with exceptions for Spread Spectrum Clocking (SSC).
4.3.1
PLL Power Supply
An on-die PLL filter solution is implemented on the processor. Refer to
DC specifications.
4.4
Voltage Identification (VID)
The processor
uses seven voltage identification signals, VID[6:0], to support automatic
selection of voltages.
specifies the voltage level corresponding to the state
of VID[6:0]. A ‘1’ in this table refers to a high voltage level and a ‘0’ refers to a low
voltage level. If the processor is not soldered on board (VID[6:0] = 1111111), or the
voltage regulation circuit cannot supply the voltage that is requested, the voltage
regulator must disable itself.
voltage level. If the processor is not soldered on board (VID[6:0] = 1111111), or the
voltage regulation circuit cannot supply the voltage that is requested, the voltage
regulator must disable itself.
VID signals are CMOS push/pull drivers. Refer to
for the DC specifications
for these signals. Individual processor VID values may be set during manufacturing so
that two devices at the same core frequency may have different VID settings.
that two devices at the same core frequency may have different VID settings.
The VR utilized must be capable of regulating its output to the value defined by the VID
values issued. DC specifications are included in
values issued. DC specifications are included in
.
Table 4-19.Voltage Identification Definition
VID6
VID5
VID4
VID3
VID2
VID1
VID0
VCC (V)
0
0
1
1
0
0
0
1.2000
0
0
1
1
0
0
1
1.1875
0
0
1
1
0
1
0
1.1750
0
0
1
1
0
1
1
1.1625
0
0
1
1
1
0
0
1.1500
0
0
1
1
1
0
1
1.1375
0
0
1
1
1
1
0
1.1250
0
0
1
1
1
1
1
1.1125
0
1
0
0
0
0
0
1.1000
0
1
0
0
0
0
1
1.0875
0
1
0
0
0
1
0
1.0750
0
1
0
0
0
1
1
1.0625
0
1
0
0
1
0
0
1.0500
0
1
0
0
1
0
1
1.0375
0
1
0
0
1
1
0
1.0250
0
1
0
0
1
1
1
1.0125