Datasheet

Intel
®
Itanium
®
Processor 9300 Series and 9500 Series Datasheet 53
Electrical Specifications
2.6.5.2.2 Overshoot and Undershoot Specifications for the Intel
®
Itanium
®
Processor
9500 Series
2.6.6 Signal DC Specifications
Table 2-27 through Table 2-35 state the DC specifications for the single-ended signal
groups defined in Table 2-2.
V
MAX-OS-DIFF
Overshoot for Intel
®
QPI and Intel
®
SMI
signals
1.54 V
V
MAX-US-DIFF
Undershoot for Intel
®
QPI and Intel
®
SMI
signals
-0.337 V
V
ABSMAX-OS-DIFF
Absolute Max for Intel
®
QPI and Intel
®
SMI signals
1.7 V
V
ABSMAX-US-DIFF
Absolute Min for Intel
®
QPI and Intel
®
SMI
signals
-0.525 V
V
MAX_OS_SYSCLK
Sysclk single-ended maximum voltage 1.54 V
V
MIN_US_SYSCLK
Sysclk single-ended minimum voltage -0.337 V
Table 2-26. Overshoot and Undershoot Specifications For Differential
Intel
®
QuickPath Interconnect and Intel
®
SMI and Single-Ended
Signals for the Intel
®
Itanium
®
Processor 9500 Series
Symbol Parameter Min Max Unit
V
MAX-OS-SE
Overshoot for single-ended signals 1.36 V
V
MIN-US-SE
Undershoot for single-ended signals -0.22 V
V
ABSMAX-OS-SE
Absolute Max for single-ended signals 1.46 V
V
ABSMIN-US-SE
Absolute Min for single-ended signals -0.32 V
V
MAX-OS-DIFF
Overshoot for Intel
®
QPI and Intel
®
SMI
signals
1.3 V
V
MAX-US-DIFF
Undershoot for Intel
®
QPI and Intel
®
SMI signals
-0.3 V
V
ABSMAX-OS-DIFF
Absolute Max for Intel
®
QPI and Intel
®
SMI signals
1.4 V
V
ABSMAX-US-DIFF
Absolute Min for Intel
®
QPI and Intel
®
SMI signals
-0.4 V
V
MAX_OS_SYSCLK
Sysclk single-ended maximum voltage 1.3 V
V
MIN_US_SYSCLK
Sysclk single-ended minimum voltage -0.3 V
Table 2-25. Overshoot and Undershoot Specifications For Differential
Intel
®
QuickPath Interconnect and Intel
®
SMI and Single-Ended Signals
for the Intel
®
Itanium
®
Processor 9300 Series (Sheet 2 of 2)
Symbol Parameter Min Max Unit
Table 2-27. Voltage Regulator Signal Group DC Specifications
Symbol Parameter Min Max Unit Notes
V
IL
Input Low Voltage 0 0.4 V
V
IH
Input High Voltage 0.8 3.6 V
V
OH
Output High Voltage 0.8 3.6 V 1, 2, 3, 4, 5
V
OL
Output Low Voltage 0 0.4 V 1, 2, 3, 4, 5
Notes:
1. Open collector and drain outputs need pull-up resistors on the motherboard.