ICS94228 Datasheet, PDF (12/17 Pages) Integrated Circuit Systems – Programmable System Clock Chip for AMD - K7™ processor

ICS94228
Electrical Characteristics - PCICLK
T_A = 0 - 70°C; VDD = 3.3 V +/-5%; CL = 30 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN
Output High Voltage
V_OH1 I_OH = -11 mA
2.6
Output Low Voltage
V_OL1 I_OL = 9.4 mA
Output High Current
I_OH1
V_OH = 2.0 V
Output Low Current
I_OL1
V_OL = 0.8 V
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Rise Time¹
t_r1
V_OL = 0.4 V, V_OH = 2.4V
Fall Time¹
t_f1
V_OH = 2.4V, V_OL = 0.4V
Duty Cycle¹
dt1 V_T = 1.5 V
45
Jitter Cycle-to-Cycle¹
tj_cyc-cyc1 V_T = 1.5V
Skew1(window)
Tsk1 V_T = 1.5V
1_{Guaranteed by design, not 100% tested in production.}
TYP
2.0
1.8
51
130
330
MAX
0.4
-16
2.5
2.5
55
500
500
UNITS
V
V
mA
mA
ns
ns
%
ps
ps
Electrical Characteristics - PCICLK_E
T_A = 0 - 70°C; VDD = 3.3 V +/-5%; CL = 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN
Output High Voltage
V_OH1 I_OH = -11 mA
2.6
Output Low Voltage
Output High Current
V_OL1
I_OH1
I_OL = 9.4 mA
V_OH = 2.0 V
Output Low Current
I_OL1
V_OL = 0.8 V
12
Rise Time¹
t_r1
V_OL = 0.4 V, V_OH = 2.4V
Fall Time¹
t_f1
V_OH = 2.4V, V_OL = 0.4V
Duty Cycle¹
dt1 V_T = 1.5 V
45
Jitter Cycle-to-Cycle¹
tj_cyc-cyc1 V_T = 1.5V
PCI_E to PCI Skew1
Tsk1 V_T = 1.5V
1_{Guaranteed by design, not 100% tested in production.}
TYP MAX UNITS
V
0.4
V
-12
mA
mA
1.7 2.5
ns
2.0 2.5
ns
52 55
%
100 500
ps
2.3 2.7
ns
0447E—05/07/04
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