RG82845M Intel, RG82845M Datasheet - Page 130

• Manufacturer Part Number: RG82845M
• Description: Chipset Memory Controller Hub Mobile
• Manufacturer: Intel

Intel
8.
130
Table 38. DC Characteristics
®
82845MP/82845MZ Chipset-Mobile (MCH-M)
DC Characteristics
I/O Buffer Supply Voltage
Reference Voltages
Host Interface
DDR Interface
VTTactive
VTTsleep
Symbol
HSWING
AGPREF
VCC1_8
VCC1_5
VCCSM
HVREF
SDREF
HIREF
I
V
V
V
LEAK_H
V
V
C
VTT
I
OL_H
IL(DC)
OH_H
OL_H
IL_H
IH_H
PAD
Signal
Group
(k,m)
(a,b)
(a,b)
(a,b)
(a,c)
(a,c)
(a,c)
(a,c)
(u)
(s)
(d)
(d)
(n)
(h)
(t)
(r)
(r)
®
(j)
DDR I/O Supply Voltage
1.8V I/O Supply Voltage
Core and AGP Voltage
Host AGTL+ Termination
Voltage
BK-M Active Range
BK-M Inactive Range
Host Address and Data
Reference Voltage
Host Compensation
Reference Voltage
Hub Interface Reference
Voltage
DDR Reference Voltage
AGP Reference Voltage
Host AGTL+ Input Low
Voltage
Host AGTL+ Input High
Voltage
Host AGTL+ Output Low
Voltage
Host AGTL+ Output High
Voltage
Host AGTL+ Output Low
Current
Host AGTL+ Input
Leakage Current
Host AGTL+ Input
Capacitance
DDR Input Low Voltage
Parameter
Datasheet
(2/3 x VTT) + 0.1
2/3 x VTT – 2%
1/3 x VTT – 2%
0.48 x VCC1_8
0.48 x VCC1_5
0.48 x VCCSM
0.85-2.5%
VTT-0.1
1.0-5%
2.375
1.425
Min
1.71
N/A
1/2 x VCC1_8
1/2 x VCC1_5
1/2 x VCCSM
2/3 x VTT
1/3 x VTT
Nom
2.5
1.8
1.5
1.0
N/A
VTT
(1/3 x VTT) + 0.1
(2/3 x VTT) – 0.1
2/3 x VTT + 2%
1/3 x VTT + 2%
0.52 x VCC1_8
0.52 x VCC1_5
0.52 x VCCSM
SDREF – 0.15
max
1.5+2.5%
1.5+5%
2.625
1.575
Max
1.89
1.75
±15
/ 0.75Rtt
min
Unit
mA
µA
pF
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Rtt
V
VTT
250687-002
OL
min
<Vpad<
Notes
=45Ω
R