25
Dual-Core Intel® Xeon® Processor 5200 Series Electrical Specifications
Note:
1.
V
TT
supplies the PECI interface. PECI behavior does not affect V
TT
min/max specifications.
2.
The leakage specification applies to powered devices on the PECI bus.
3.
One node is counted for each client and one node for the system host. Extended trace lengths might appear
as additional nodes.
2.10.2
Input Device Hysteresis
The input buffers in both client and host models must use a Schmitt-triggered input
design for improved noise immunity. Use
Figure 2-1
as a guide for input buffer design.
Table 2-10. PECI DC Electrical Limits
Symbol
Definition and Conditions
Min
Max
Units
Notes
1
V
in
Input Voltage Range
-0.150
V
TT
V
V
hysteresis
Hysteresis
0.1 * V
TT
N/A
V
V
n
Negative-edge threshold
voltage
0.275 * V
TT
0.500 * V
TT
V
V
p
Positive-edge threshold
voltage
0.550 * V
TT
0.725 * V
TT
V
I
source
High level output source
(V
OH
= 0.75 * V
TT
)
-6.0
N/A
mA
I
sink
Low level output sink
(V
OL
= 0.25 * V
TT
)
0.5
1.0
mA
I
leak+
High impedance state leakage
to V
TT
(V
leak
= V
OL
)
N/A
50
µA
2
I
leak-
High impedance leakage to
GND
(V
leak
= V
OH
)
N/A
10
µA
2
C
bus
Bus capacitance per node
N/A
10
pF
3
V
noise
Signal noise immunity above
300 MHz
0.1 * V
TT
N/A
V
p-p
Figure 2-1. Input Device Hysteresis
Minimum V
P
Maximum V
P
Minimum V
N
Maximum V
N
PECI High Range
PECI Low Range
Valid Input
Signal Range
Minimum
Hysteresis
V
TT
PECI Ground
Содержание L5310 - Cpu Xeon Quad-Core Lv 1.6Ghz Fsb1066Mhz 8M Fc-Lga6 Tray
Страница 1: ...318590 005 Dual Core Intel Xeon Processor 5200 Series Datasheet August 2008...
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