Intel W3540 AT80601000921AB User Manual
Product codes
AT80601000921AB
Intel® Xeon® Processor 3500 Series Datasheet Volume 1
27
Electrical Specifications
Notes:
1.
Unless otherwise noted, all specifications in this table apply to all processor frequencies.
2.
V
IL
is defined as the maximum voltage level at a receiving agent that will be interpreted as a logical low
value.
3.
V
IH
is defined as the minimum voltage level at a receiving agent that will be interpreted as a logical high
value.
Figure 2-4. V
TT
Static and Transient Tolerance Load Line
Table 2-11. DDR3 Signal Group DC Specifications
Symbol
Parameter
Min
Typ
Max
Units
Notes
1
V
IL
Input Low Voltage
—
0.43*V
DDQ
V
2,4
V
IH
Input High Voltage
0.57*V
DDQ
—
—
V
3
V
OL
Output Low Voltage
—
(V
DDQ
/ 2)* (R
ON
/
(R
ON
+R
VTT_TERM
))
—
V
V
OH
Output High Voltage
—
V
DDQ
– ((V
DDQ
/ 2)*
(R
ON
/(R
ON
+R
VTT_TERM
))
—
V
4
R
ON
DDR3 Clock Buffer On
Resistance
21
—
31
Ω
R
ON
DDR3 Command Buffer
On Resistance
16
—
24
Ω
R
ON
DDR3 Reset Buffer On
Resistance
25
—
75
Ω
R
ON
DDR3 Control Buffer On
Resistance
21
—
31
Ω
R
ON
DDR3 Data Buffer On
Resistance
21
—
31
Ω
I
LI
Input Leakage Current
N/A
N/A
± 1
mA
DDR_COMP0
COMP Resistance
99
100
101
Ω
5
DDR_COMP1
COMP Resistance
24.65
24.9
25.15
Ω
5
DDR_COMP2
COMP Resistance
128.7
130
131.30
Ω
5
-0.2125
-0.2000
-0.1875
-0.1750
-0.1625
-0.1500
-0.1375
-0.1250
-0.1125
-0.1000
-0.0875
-0.0750
-0.0625
-0.0500
-0.0375
-0.0250
-0.0125
0.0000
0.0125
0.0250
0.0375
0.0500
0
5
10
15
20
25
V
t
t
t
V
Itt [A] (sum of Itta and Ittd)
Vtt Maximum
Vtt Typical
Vtt Minimum