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ICS9248-56 Datasheet(PDF) 7 Page - Integrated Circuit Systems

Part # ICS9248-56
Description  Frequency Timing Generator for Pentium II Systems
PDF  11 Pages
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Manufacturer  ICST [Integrated Circuit Systems]
Direct Link  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS9248-56 Datasheet(HTML) 7 Page - Integrated Circuit Systems

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ICS9248-56
Electrical Characteristics - CPUCLK
T
A = 0 - 70C; VDD = 3.3 V +/-5%, VDDL = 2.5 V +/-5%; CL = 10 - 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output High Voltage
V
OH2B
I
OH = -12.0 mA
1.8
2.3
V
Output Low Voltage
V
OL2B
I
OL = 12 mA
0.31
0.4
V
Output High Current
I
OH2B
V
OH = 1.7 V
-27
mA
Output Low Current
I
OL2B
V
OL = 0.7 V
27
mA
Rise Time
t
r2B
1
V
OL = 0.4 V, VOH = 2.0 V
0.4
1.15
1.6
ns
Fall Time
t
f2B
1
V
OH = 2.0 V, VOL = 0.4 V
0.4
1.4
1.6
ns
Duty Cycle
d
t2B
1
V
T = 1.25 V
44
48
55
%
Skew
t
sk2B
1
V
T = 1.25 V
134
175
ps
t
jcyc-cyc2B
1
V
T = 1.25 V
186
250
ps
t
j1s2B
1
V
T = 1.25 V
52
150
ps
t
jabs2B
1
V
T = 1.25 V
-250
150
+250
ps
1Guaranteed by design, not 100% tested in production.
Jitter
Electrical Characteristics - PCICLK
TA = 0 - 70C; VDD = VDDL = 3.3 V +/-5%; CL = 30 pF
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output High Voltage
VOH1
IOH = -18 mA
2.1
3.3
V
Output Low Voltage
VOL1
IOL = 9.4 mA
0.1
0.4
V
Output High Current
IOH1
VOH = 2.0 V
-22
mA
Output Low Current
IOL1
VOL = 0.8 V
16
57
mA
Rise Time
1
tr1
VOL = 0.4 V, VOH = 2.4 V
1.6
2
ns
Fall Time
1
tf1
VOH = 2.4 V, VOL = 0.4 V
1.8
2
ns
Duty Cycle
1
dt1
VT = 1.5 V
45
50
55
%
Skew
1
tsk1
VT = 1.5 V
222
500
ps
t
jcyc-cyc
1
V
T = 1.5 V
186
500
ps
tj1s1
VT = 1.5 V
52
150
ps
tjabs1
VT = 1.5 V
200
500
ps
1Guaranteed by design, not 100% tested in production.
Jitter



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