313072-002 Datasheet, PDF (37/250 Pages) Intel Corporation – Advanced Memory Buffer

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_DD
V_{IN (DDR2),} V_{OUT (DDR2)}
I_INK (V_IN < 0 or V_IN > V_DD)
I_OUTK (V_OUT < 0 or V_OUT > V_DD)
I_OUT (V_OUT = 0 to V_DD)
N/A
V_CC
T_stg
Supply voltage DRAM Interface
Voltage on any DDR2 interface pin relative to Vss
(See Notes 2 and 3)
Input clamp current
Output clamp current
Continuous output current
Continuous current through each V_DD or GND
Supply voltage for Core and High Speed Interface
Storage temperature range
–0.5
–0.5
–0.3
–55
+2.3
V
+2.3
V
+30
mA
+30
mA
+30
mA
+100
mA
+1.75
V
+100
°C
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.
Note:
AMB Operating DC Electrical Parameters
Parameter
V_CC link / core
V_DD
V_DDSPD
AMB Mode
Units
Volts
Volts
Volts
Min
1.455
1.7
3.0
Typ
1.5
1.8
3.3
Max
1.575
1.9
3.6
There will also be a V_TT termination supply at V_DDR/2 available on the DIMM but does
not connect to the AMB.
Intel® 6400/6402 Advanced Memory Buffer Datasheet
37