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Intel
®
E7505 Chipset MCH Datasheet 177
Electrical Characteristics
6.4 DC Characteristics
This section provides DC Characteristics at VCC1_2 = 1.2 V ± 5%
and at VCC1_3 = 1.3 V ± 5%
Table 6-9. Operating Condition Supply Voltage
Symbol
Signal
Group
Parameter Min Nom Max Unit Notes
VTT (f) Host AGTL+ Termination Voltage 1.15 1.525 V
VCC
DDR
DDR Buffer Voltage 2.375 2.5 2.625 V
VCC
MCH
MCH Core Voltage 1.14 1.2 1.26 V
VCC
AGP
AGP Voltage 1.425 1.5 1.575 V
GTLREF Host AGTL+ Reference Voltage
0.63 x VCC
±2%
Table 6-10. System Bus Interface DC Characteristics
Symbol
Signal
Group
Parameter Min Nom Max Unit Notes
V
IL_H
(a), (c) Host AGTL+ Input Low Voltage
(0.63 x VTT) –
0.1GTLREF
V
V
IH_H
(a), (c) Host AGTL+ Input High Voltage
(0.63 x VTT) +
0.1GTLREF
V
V
OL_H
(a), (b) Host AGTL+ Output Low Voltage 1/3 x VTT
(1/3 x VTT) +
0.1GTLREF
V
V
OH_H
(a), (b) Host AGTL+ Output High Voltage VTT–0.1 VTT V
RTT Host termination Resistance 46 50 54 W
I
OL_H
(a), (b) Host AGTL+ Output Low Leakage
(0.63 x
VTTmax)
/ RTT min
A
I
L_H
(a), (c) Host AGTL+ Input Leakage Current 10 µA
C
PAD
(a), (c) Host AGTL+ Input Capacitance 1 3.5 pF
CCVREF (d)
Host Common clock Reference
Voltage
0.63 x VTT V
HxVREF (d)
Host Address and Data Reference
Voltage
0.63 x VTT V
HXSWNG,
HYSWNG
(d)
Host Compensation Reference
Voltage
1/3 x VTT V