Intel I7-975 User Manual
Electrical Specifications
28
Datasheet
4.
V
IH
and V
OH
may experience excursions above V
DDQ
. However, input signal drivers must comply with the
signal quality specifications.
5.
COMP resistance must be provided on the system board with 1% resistors.
Notes:
1.
Unless otherwise noted, all specifications in this table apply to all processor frequencies.
2.
The V
TTA
referred to in these specifications refers to instantaneous V
TTA
.
3.
For Vin between 0 V and V
TTA
. Measured when the driver is tristated.
4.
V
IH
and V
OH
may experience excursions above V
TT
.
Notes:
1.
Unless otherwise noted, all specifications in this table apply to all processor frequencies.
2.
The V
TTA
referred to in these specifications refers to instantaneous V
TTA
.
3.
For Vin between 0 V and V
TTA
. Measured when the driver is tristated.
4.
V
IH
and V
OH
may experience excursions above V
TT
.
Notes:
1.
Unless otherwise noted, all specifications in this table apply to all processor frequencies.
2.
The V
TTA
referred to in these specifications refers to instantaneous V
TTA
.
3.
For Vin between 0 V and V
TTA
. Measured when the driver is tristated.
4.
V
IH
and V
OH
may experience excursions above V
TT
.
5.
This specification applies to VCCPWRGOOD and VTTPWRGOOD
6.
This specification applies to VDDPWRGOOD
Table 2-12. RESET# Signal DC Specifications
Symbol
Parameter
Min
Typ
Max
Units
Notes
1
V
IL
Input Low Voltage
—
—
0.40 * V
TTA
V
2
V
IH
Input High Voltage
0.80
*
V
TTA
—
—
2,4
I
LI
Input Leakage Current
—
—
± 200
μA
3
Table 2-13. TAP Signal Group DC Specifications
Symbol
Parameter
Min
Typ
Max
Units
Notes
1
V
IL
Input Low Voltage
—
—
0.40
*
V
TTA
V
2
V
IH
Input High Voltage
0.75 * V
TTA
—
—
2,4
V
OL
Output Low Voltage
—
—
V
TTA
* R
ON
/
(R
ON
+ R
sys_term
)
V
2
V
OH
Output High Voltage
V
TTA
—
—
V
2,4
Ron
Buffer on Resistance
10
—
18
Ω
I
LI
Input Leakage Current
—
—
± 200
μA
3
Table 2-14. PWRGOOD Signal Group DC Specifications
Symbol
Parameter
Min
Typ
Max
Units
Notes
1
V
IL
Input Low Voltage for VCCPWRGOOD
and VTTPWRGOOD Signals
—
—
0.25 * V
TTA
V
2,5
V
IL
Input Low Voltage for VDDPWRGOOD
Signal
—
—
0.29
V
6
V
IH
Input High Voltage for VCCPWRGOOD
and VTTPWRGOOD Signals
0.75 * V
TTA
—
—
V
2,5
V
IH
Input High Voltage for VDDPWRGOOD
Signal
0.87
—
—
V
5
Ron
Buffer on Resistance
10
—
18
Ω
I
LI
Input Leakage Current
—
—
± 200
μA
4