ics9248-134 ETC-unknow, ics9248-134 Datasheet - Page 6

• Manufacturer Part Number: ics9248-134
• Description: Frequency Timing Generator Pentium Ii/iii Systems
• Manufacturer: ETC-unknow

ICS9248-134
1
1
1
T
T
T
Group Offset
Electrical Characteristics - CPUCLK
Electrical Characteristics - CPU/2
Guaranteed by design, not 100% tested in production.
Guaranteed by design, not 100% tested in production.
Guaranteed by design, not 100% tested in production.
Jitter, Cycle-to-cycle
Jitter, Cycle-to-cycle
A
A
Output High Voltage
A
Output High Voltage
Output Low Voltage
Output High Current
Output High Current
Output Low Current
Output Low Voltage
Output Low Current
Output Impedance
Output Impedance
Output Impedance
Output Impedance
= 0 - 70º C; V
= 0 - 70º C; V
= 0 - 70º C; V
CPU to IOAPIC
PARAMETER
PARAMETER
CPU to 3V66
3V66 to PCI
CPU to PCI
Duty Cycle
Duty Cycle
Rise Time
Rise Time
Fall Time
Fall Time
GROUP
Skew
1
1
1
DD
1
1
DD
1
DD
1
= 3.3 V +/-5%, V
= 3.3 V +/-5%, V
= 3.3 V +/-5%, V
1
1
1
1
1
1
SYMBOL
0.5-4.0 ns; 3V66 leads.
0.0-1.5 ns; CPU leads.
0.5-4.0 ns; CPU leads.
0.5-4.0 ns; CPU leads.
SYMBOL
t
R
R
jcyc-cyc2B
t
V
V
R
I
jcyc-cyc2B
I
R
V
V
t
DSN2B
d
I
DSP2B
OH2B
I
OL2B
t
t
OH2B
sk2B
OL2B
DSN2B
OH2B
d
r2B
f2B
DSP2B
OL2B
t
t
t2B
OH2B
OL2B
r2B
f2B
t2B
OFFSET
DDL
DDL
DDL
V
V
I
I
V
V
V
V
V
V
V
V
OH
OL
V
V
I
I
V
V
V
V
V
V
V
O
O
OH
OL
OL
OH
T
T
T
T
OH
OL
= 2.5 V +/-5%; C
= 1.25 V; CPU frequencies < 135 MHz
= 1.25 V
= 1.25 V; CPU frequencies <135 MHz
= 1.25 V; CPU frequencies >=135 MHz
O
O
OH
OL
OL
OH
T
T
T
= V
= V
= 12.0 mA
= 2.5 V +/-5%; C
= -12.0 mA
= 2.5 V +/-5%; C
= 0.7 V
= 0.4 V, V
= 1.7 V
= 2.0 V, V
= 1.25 V
= 1.25 V; CPU frequencies <135 MHz
= 1.25 V; CPU frequencies >=135 MHz
= V
= V
= 12.0 mA
= -12.0 mA
= 0.7 V
= 0.4 V, V
= 1.7 V
= 2.0 V, V
DD
DD
DD
DD
*(0.5)
*(0.5)
*(0.5)
*(0.5)
CPU @ 20pF, IOAPIC @ 20pF
OH
OL
CPU @ 20pF, 3V66 @ 30pF
CONDITIONS
OH
MEASUREMENT LOADS
3V66 @ 30pF, PCI @ 30pF
OL
CPU @ 20pF, PCI @ 30pF
CONDITIONS
= 2.0 V
= 0.4 V
L
= 2.0 V
= 0.4 V
= 20 pF (unless otherwise stated)
L
L
= 20 pF (unless otherwise stated)
= 20 pF (unless otherwise stated)
CPU @ 1.25V, IOAPIC @ 1.25V
MIN
13.5
13.5
MIN
13.5
13.5
19
45
CPU @ 1.25V, 3V66 @ 1.5V
19
45
2
2
CPU @ 1.25V, PCI @ 1.5V
3V66 @ 1.5V, PCI @ 1.5V
MEASURE POINTS
TYP
2.24
0.31
TYP
179
231
0.31
-31
1.1
1.4
227
306
30
32
-31
25
50
53
2.2
1.1
1.1
30
31
26
49
MAX UNITS
MAX UNITS
175
275
350
0.4
-19
1.6
1.8
275
350
45
45
-19
55
0.4
1.6
1.6
45
45
55
mA
mA
mA
mA
ns
ns
%
ps
ps
V
V
ns
ns
%
ps
V
V