Intel
®
E7520 Memory Controller Hub (MCH) Datasheet 259
6 Electrical Characteristics
This chapter provides the absolute maximum ratings and DC characteristics for the MCH.
6.1 Absolute Maximum Ratings
Table 6-1 lists the MCH’s maximum environmental stress ratings. Functional operation at the
absolute maximum and minimum is neither implied nor guaranteed. Functional operating
parameters are listed in the AC and DC tables.
Warning: Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage.
These are stress ratings only. Operating beyond the “operating conditions” is not recommended and
extended exposure beyond “operating conditions” may affect reliability.
6.2 Power Characteristics
Table 6-1. Absolute Maximum Ratings
Symbol Parameter Min Max Unit
Tstorage Storage Temperature -40.0 85.0 °C
Vcc_MCH Core Supply Voltage with respect to Vss -0.50 1.65 V
VTT_AGTL Supply Voltage input with respect to Vss -0.50 1.40 V
Vdd_DDR DDR Buffer Supply Voltage -0.50 2.80 V
Table 6-2. Operating Condition Power Supply Rails (Sheet 1 of 2)
Symbol Parameter Minimum Nominal Maximum Unit Notes
AC DC AC DC
Vtt Host AGTL+ Termination Voltage 1.140 1.164 1.2 1.236 1.260 V 1
Itt Host AGTL+ Termination Current 3.2 A
Vdd_DDR DDR Buffer Voltage 2.325 2.375 2.5 2.625 2.675 V 1
Idd_DDR DDR Buffer Current 8.8 A 3, 4
Vdd_DDR2 DDR2 Buffer Voltage 1.674 1.71 1.8 1.89 1.926 V 1
Idd_DDR DDR2 Buffer Current 6.7 A 3, 4
Vcc_MCH 1.5 V Supply Voltage 1.425 1.455 1.5 1.545 1.575 V 1
Icc_MCH 1.5V Supply Current on Vcc 3.5 A 5
Icc_EXP 1.5V Supply Current on VccEXP 2.0 A 5, 6