Intel Xeon Wolfdale E3210 P4X-UPE3210-316-6M1333 数据表
产品代码
P4X-UPE3210-316-6M1333
Datasheet
285
Electrical Characteristics
11.4
Buffer Supply and DC Characteristics
11.4.1
I/O Buffer Supply Voltages
The I/O buffer supply voltage is measured at the MCH package pins. The tolerances
shown in
are inclusive of all noise from DC up to 20 MHz. In the lab, the
voltage rails should be measured with a bandwidth limited oscilloscope with a roll off of
3 dB/decade above 20 MHz under all operating conditions.
indicates which supplies are connected directly to a voltage regulator or to a
filtered voltage rail. For voltages that are connected to a filter, they should me
measured at the input of the filter.
If the recommended platform decoupling guidelines cannot be met, the system
designer will have to make tradeoffs between the voltage regulator output DC tolerance
and the decoupling performance of the capacitor network to stay within the voltage
.
NOTES:
1.
1.
These rails are filtered from other voltage rails on the platform and should be measured at
the input of the filter.
the input of the filter.
2.
MCH supports both V
TT
=1.2 V nominal and V
TT
=1.1 V nominal depending on the
identified processor.
Table 26.
I/O Buffer Supply Voltage
Symbol
Parameter
Min
Nom
Max
Unit
Notes
VCC_DDR
DDR2 I/O Supply Voltage
1.7
1.8
1.9
V
VCC_CKDDR
DDR2 Clock Supply Voltage
1.7
1.8
1.9
V
1
VCC_EXP
PCI-Express* Supply Voltage
1.188
1.25
1.313
V
VCCA_EXP
PCI-Express* Analog Supply
Voltage
Voltage
3.135
3.3
3.465
V
1
VTT_FSB
1.2 V System Bus Input Supply
Voltage
Voltage
1.14
1.2
1.26
V
2
1.1 V System Bus Input Supply
Voltage
Voltage
1.045
1.1
1.155
V
VCC
MCH Core Supply Voltage
1.188
1.25
1.313
V
VCC_CL
Controller Supply Voltage
1.188
1.25
1.313
V
VCC3_3
CMOS Supply Voltage
3.135
3.3
3.465
V
VCCA_HPLL,
VCCAPLL_EXP,
VCCA_MPLL
Various PLL Analog Supply
Voltages
Voltages
1.188
1.25
1.313
V
1