Intel 845 Manuel D’Utilisation
Electrical Characteristics
R
Intel
®
82845 MCH for SDR Datasheet 123
Symbol Signal
Group
Parameter Min
Typ
Max
Unit
Notes
C
I/0
(k,m,p)
Input
Capacitance
4.65
5.37
pF
1.5 V Interface
V
IL
(e,f)
Input Low Voltage
0.4 x VCC1_5
V
V
IH
(e,f)
Input High Voltage
0.6 x VCC1_5
V
V
OL
(e,g)
Output Low Voltage
0.15 x VCC1_5
V
V
OH
(e,g)
Output High Voltage
0.85 x VCC1_5
V
I
OL
(e,g)
Output Low Current
1
mA
@V
OL_A
max
I
OH
(e,g)
Output High Current
-0.2
mA
@V
OH_A
max
I
LEAK
(e,f)
Input Leakage Current
±
15
µ
A 0<Vin<VCC1_5
C
IN
(e,f)
Input
Capacitance
1.32
1.92 pF
1.8 V Interface
V
IL
(i,o)
Input Low Voltage
HI_REF – 0.15
V
V
IH
(i,o)
Input High Voltage
HI_REF + 0.15
V
V
OL
(i,o)
Output Low Voltage
0.1 x VCC1_8
V
I
OL
= 1 mA
V
OH
(i,o)
Output High Voltage
0.9 x VCC1_8
V
I
OH
= 1 mA
I
OL
(i,o)
Output Low Current
1
mA
@V
OL_HI
max
I
OH
(i,o)
Output High Current
-1
mA
@V
OH_HI
max
I
LEAK
(i,o)
Input Leakage Current
-150, +15
µ
A 0<Vin<VCC1_8
C
IN
(i,o)
Input
Capacitance
2.58
3.17 pF
Clock Signals
V
IL
(v)
Input Low Voltage
0.8
V
V
IH
(v)
Input High Voltage
2.4
V
C
IN
(v)
Input
Capacitance
1.2
1.4 pF
V
IL
(w)
Input Low Voltage
0
V
V
IH
(w)
Input High Voltage
0.660
0.710
0.850
V
V
CROSS
(w)
Crossing Voltage
0.45 x (V
IH
– V
IL
) 0.5 x (V
IH
– V
IL
) 0.55 x (V
IH
– V
IL
)
V
C
IN
(w)
Input
Capacitance
0.94
1.1 pF
RSTIN# Signals
V
IL
(p)
Input Low Voltage
0.8
V
V
IH
(p)
Input High Voltage
2.0
V
I
LEAK
(p)
Input Leakage Current
±100
µ
A 0<Vin<VCC3_3