ics9248-199 Integrated Device Technology, ics9248-199 Datasheet - Page 12

• Manufacturer Part Number: ics9248-199
• Description: Frequency Generator For Sis 735/740 With Amd K7 Processor
• Manufacturer: Integrated Device Technology

ICS9248-199
0376E—12/23/02
1
Electrical Characteristics - CPUCLK (Open Drain)
T
Notes:
1 - Guaranteed by design, not 100% tested in production.
2 - V
3 - Vpull-up(external) = 2.7V, Min=Vpull-up(external)/2-150mV; Max=Vpull-up(external)/2 +150mV
Electrical Characteristics - 24MHz, 48MHz, AGP, REF
T
Skew CPUCLK to CPUT0
Differential voltage-DC
Diff Crossover Voltage
Guaranteed by design, not 100% tested in production.
Differential voltage-AC
A
A
Jitter, Cycle-to-cycle
Output High Voltage
Jitter, Cycle-to-Cycle
Output Low Voltage
Output Low Current
= 0 - 70°C; V
and V
= 0 - 70°C; V
Output Impedance
Output High Voltage
Output High Current
Output Low Voltage
Output Low Current
Skew AGP to AGP
Output Impedance
Output Impedance
Jitter, Absolute
DIF
PARAMETER
PARAMETER
Duty Cycle
Fall Time
Duty Cycle
specifies the minimum input differential voltages (V
Rise Time
Fall Time
CP
is the "complement" input level.
DD
DD
1
1
1
=3.3V +/- 5%; C
1
1
= 3.3V +/-5%; C
1
1
1
1
1
1
1
1
1
1
tjcyc-cyc
SYMBOL
tjabs
V
V
t
SYMBOL
I
d
V
V
t
sk2B
Z
OL2B
t
OH2B
OL2B
f2B
V
R
R
t2B
jcyc-cyc5
DIF
DIF
O
V
V
X
I
I
t
DSP5B
DSN5B
d
1
t
t
1
2B
OH5
sk5
OL5
1
1
OH5
OL5
r5
f5
t5
L
1
1
2B
1
1
L
1
= 20 pF (unless otherwise specified)
1
= 20 pF (unless otherwise specified)
1
V
Termination to Vpull-up(external)
Termination to Vpull-up(external)
V
V
V
Note 2
Note 2
Note 3
CPUT0,C0 between crossing poin
CPUT0,C0 V
V
V
V
O
OL
OH
OH
T
T
T
V
V
I
I
V
V
V
V
V
V
V
V
V
V
=V
= 50%
= V
= 50%
OH
OL
O
O
OH
OL
OL
OH
T
T
T
T
T
T
= 0.3 V
= 1.1V, V
= 80% V
=V
=V
X
= 1.5 V
= 1.5 V
= 1.5 V
= 1.5 V
= 1.5 V
= 1.5 V
= 6 mA
= -14 mA
X
= 0.8 V
= 0.4 V, V
= 2.0 V
= 2.4 V, V
DD
DD
CONDITIONS
*(0.5)
*(0.5)
DD
T
OL
= 50% V
, V
= 2.0V
OH
OL
CONDITIONS
OL
TR
12
= 2.4 V
= 0.4 V
= 20% V
-V
CP
DD
24_48 MHz, AGP
REF
AGP
24_48 MHz
AGP
REF
) required for switching, where V
DD
-250
MIN
0.4
0.2
1.2
18
45
44
1
TYP
1.45
105
1.7
1.1
50
53
47
40
MIN
2.4
20
20
10
45
45
Vpull-up(ext) + 0.6
Vpull-up(ext) + 0.6
TYP
TR
100
110
220
375
1.3
1.3
52
55
MAX
175
250
250
is the "true" input level
1.2
0.4
1.2
1.6
55
55
2
MAX UNITS
175
500
500
0.4
-20
60
60
55
56
2
2
UNITS
mA
mA
mA
ns
ns
ps
ps
%
ns
ps
ps
ps
%
V
V
V
V
V
V
V