Datasheet
Electrical Specifications
Dual-Core Intel
®
Xeon
®
Processor 7000 Series Datasheet 31
NOTES:
1. All outputs are open drain.
2. The V
TT
represented in these specifications refers to instantaneous V
TT
.
3. The maximum output current is based on maximum current handling capability of the buffer and is not
specified into the test load.
4. V
HYS
represents the amount of hysteresis, nominally centered about 0.5 * V
TT
for all PWRGOOD and TAP
inputs.
§
I
OL
Output Leakage Current N/A ±200 µA
R
ON
Buffer On Resistance 4 8 Ω
Table 2-15. PWRGOOD Input and TAP Signal Group DC Specifications (Sheet 2 of 2)
Symbol Parameter Min Max Unit Notes
Table 2-16. GTL+ Asynchronous and AGTL+ Asynchronous Signal Group
DC Specifications
Symbol Parameter Min Max Unit Notes
1
NOTES:
1. Unless otherwise noted, all specifications in this table apply to all processor frequencies.
V
IL
Input Low Voltage 0.0 GTLREF – (0.10 * V
TT
)V
2,
3
2. The V
TT
represented in these specifications refers to instantaneous V
TT
.
3. V
IL
is defined as the voltage range at a receiving agent that will be interpreted as a logical low value.
V
IH
Input High Voltage GTLREF +(0.10 * V
TT
)V
TT
V
2,
4
4. V
IH
is defined as the voltage range at a receiving agent that will be interpreted as a logical high value.
V
OH
Output High Voltage 0.90 * V
TT
V
TT
V
2
I
OL
Output Low Current N/A
50
mA
2,
5
5. Refer to Table 2-5 to determine which signals include additional on-die termination resistance (R
L
).
I
LI
Input Leakage Current N/A ±200 µA
6,
7
6. Leakage to V
SS
with pin held at V
TT
.
7. Leakage to V
TT
with pin held at 300 mV.
I
LO
Output Leakage Current N/A ±200 µA
6,
7
R
on
Buffer On Resistance 4 8 Ω
Table 2-17. SMBus Signal Group DC Specifications
Symbol Parameter Min Max Unit Notes
1, 2
NOTES:
1. These parameters are based on design characterization and are not tested.
2. All DC specifications for the SMBus signal group are measured at the processor pins.
V
IL
Input Low Voltage -0.30 0.30 * SM_VCC V
V
IH
Input High Voltage 0.70 * SM_VCC 3.465 V
V
OL
Output Low Voltage 0 0.400 V
I
OL
Output Low Current N/A 3.0 mA
I
LI
Input Leakage Current N/A ± 10 µA
I
LO
Output Leakage Current N/A ± 10 µA
C
SMB
SMBus Pin Capacitance 15.0 pF
3
3. Platform designers may need this value to calculate the maximum loading of the SMBus and to determine
maximum rise and fall times for SMBus signals.