Electrical, Power, and Thermal
4 Electrical, Power, and Thermal
This chapter contains a description of the Intel 6400/6402 Advanced Memory Buffer
(AMB)’s electrical DC parameters, timing parameters, power considerations, and
thermal considerations.
4.1
Electrical DC Parameters
4.1.1
Absolute Maximum Ratings
Table 4-1 contains absolute maximum ratings over operating free-air temperature
range (see Note 1).
Table 4-1.
Absolute Maximum Ratings Over Operating Free-Air Temperature Range
(See Note 1)
Symbol
Parameter
Min
Max
Unit
V
V
Supply voltage DRAM Interface
–0.5
–0.5
+2.3
+2.3
V
V
DD
IN (DDR2), OUT (DDR2)
V
Voltage on any DDR2 interface pin relative to Vss
(See Notes 2 and 3)
I
I
I
(V < 0 or V > V )
DD
Input clamp current
+30
+30
mA
mA
mA
mA
V
INK
IN
IN
(V
< 0 or V
> V )
DD
Output clamp current
Continuous output current
OUTK
OUT
OUT
(V
= 0 to V )
DD
+30
OUT
OUT
N/A
Continuous current through each V
or GND
+100
+1.75
+100
DD
V
T
Supply voltage for Core and High Speed Interface
Storage temperature range
–0.3
–55
CC
°C
stg
Notes:
1.
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under
“recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods
may affect device reliability.
2.
The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are
observed.This value is limited to 2.3 V maximum.
4.1.2
Operating DC Parameters
Table 4-2 contains the electrical DC parameters for the AMB part for normal operation.
Table 4-2.
AMB Operating DC Electrical Parameters
Parameter
link / core
AMB Mode
Units
Min
Typ
Max
V
V
V
Volts
Volts
Volts
1.455
1.7
1.5
1.8
3.3
1.575
1.9
CC
DD
3.0
3.6
DDSPD
Note:
There will also be a VTT termination supply at VDDR/2 available on the DIMM but does
not connect to the AMB.
Intel® 6400/6402 Advanced Memory Buffer Datasheet
37
INTEL [ INTEL ]
