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ICS9248-56 Datasheet, PDF (7/11 Pages) Integrated Circuit Systems – Frequency Timing Generator for Pentium II Systems
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ICS9248-56
Electrical Characteristics - CPUCLK
TA = 0 - 70C; VDD = 3.3 V +/-5%, VDDL = 2.5 V +/-5%; CL = 10 - 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
Output High Voltage
VOH2B IOH = -12.0 mA
Output Low Voltage
VOL2B IOL = 12 mA
Output High Current
IOH2B
VOH = 1.7 V
Output Low Current
IOL2B
VOL = 0.7 V
Rise Time
tr2B1
VOL = 0.4 V, VOH = 2.0 V
Fall Time
tf2B1
VOH = 2.0 V, VOL = 0.4 V
Duty Cycle
dt2B1
VT = 1.25 V
Skew
tsk2B1
VT = 1.25 V
tjcyc-cyc2B1 VT = 1.25 V
Jitter
tj1s2B1
tjabs2B1
VT = 1.25 V
VT = 1.25 V
1Guaranteed by design, not 100% tested in production.
1.8 2.3
0.31
27
0.4 1.15
0.4 1.4
44
48
134
186
52
-250 150
MAX
0.4
-27
1.6
1.6
55
175
250
150
+250
UNITS
V
V
mA
mA
ns
ns
%
ps
ps
ps
ps
Electrical Characteristics - PCICLK
TA = 0 - 70C; VDD = VDDL = 3.3 V +/-5%; CL = 30 pF
PARAMETER
SYMBOL
CONDITIONS
Output High Voltage
Output Low Voltage
Output High Current
Output Low Current
Rise Time1
Fall Time1
Duty Cycle1
Skew1
Jitter
VOH1
VOL1
IOH1
IOL1
tr1
tf1
dt1
tsk1
tjcyc-cyc1
tj1s1
tjabs1
IOH = -18 mA
IOL = 9.4 mA
VOH = 2.0 V
VOL = 0.8 V
VOL = 0.4 V, VOH = 2.4 V
VOH = 2.4 V, VOL = 0.4 V
VT = 1.5 V
VT = 1.5 V
VT = 1.5 V
VT = 1.5 V
VT = 1.5 V
1Guaranteed by design, not 100% tested in production.
MIN TYP MAX UNITS
2.1 3.3
V
0.1 0.4
V
-22 mA
16
57 mA
1.6
2
ns
1.8
2
ns
45
50
55
%
222 500
ps
186 500
ps
52
150
ps
200 500
ps
7
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