Datasheet

Intel® Xeon® Processors 5500 Series Electrical Specifications
42 Intel
®
Xeon
®
Processor 5500 Series Datasheet, Volume 1
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. Based on a test load of 50 Ω to V
TTA.
4. R
SYS_TERM
is the termination on the system and is not controlled by the Intel Xeon Processor 5500 Series.
5. Applies to all Processor Sideband signals, unless otherwise mentioned in Table 2-5.
6. For V
IN
between 0 V and V
TTA
. Measured when the driver is tristated.
7. COMP resistance must be provided on the system board with 1% resistors. See the applicable platform
design guide for implementation details. COMP0 resistors are to VSS.
§
Table 2-17. Control Sideband Signal Group DC Specifications
Symbol Parameter Min Typ Max Units Notes
1
V
IL
Input Low Voltage 0.64
*
V
TTA
V2,3
V
IL
Input Low Voltage for
PECI_ID signal
0.15
*
V
TTA
V2,3
V
IH
Input High Voltage 0.76
*
V
TTA
V2,3
V
IH
Input High Voltage for
PECI_ID signal
0.85
*
V
TTA
V2,3
V
OL
Output Low Voltage V
TTA
* R
ON
/
(R
ON
+ R
SYS_TERM
)
V2,4
V
OH
Output High Voltage V
TTA
V2
ODT On-Die Termination 45 55 5
R
ON
Processor Sideband Buffer
On Resistance
10 18 Ω
R
ON
Buffer On Resistance for
VID[7:0]
100 Ω
I
LI
Input Leakage Current ± 200 μA6
I
LI
Input Leakage Current for
DDR_THERM# signal
± 50 μA6
COMP0 COMP Resistance 49.4 49.9 50.4 Ω 7