ICS952621 Datasheet, PDF (8/15 Pages) Integrated Circuit Systems – Programmable Timing Control Hub™ for Next Gen P4™ processor

Integrated
Circuit
Systems, Inc.
ICS952621
Electrical Characteristics - REF-14.318MHz
T_A = 0 - 70°C; V_DD = 3.3V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
Long Accuracy
ppm
see Tperiod min-max values
Clock period
Output High Voltage
Output Low Voltage
T_period
V_OH1
V_OL1
14.318 MHz output nominal
I_OH = -1 mA
I_OL = 1 mA
Output High Current
I_OH
V _OH = 1.0 V
V_OH = 3.135 V
Output Low Current
I_OL
V_OL = 1.95 V
V_OL = 0.4 V
Rise Time
t_r11
V_OL = 0.4 V, V_OH = 2.4 V
Fall Time
t_f11
V_OH = 2.4 V, V_OL = 0.4 V
Skew
t_sk11
V_T = 1.5 V
Duty Cycle
d_t11
V_T = 1.5 V
Jitter
t_jcyc-cyc1
V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
MIN TYP MAX
-300
300
69.8270
69.8550
2.4
0.4
-33
-33
30
38
0.5 1.93 2
0.5 1.92 2
14 500
45 53.8 55
400 1000
UNITS
ppm
ns
V
V
mA
mA
mA
mA
ns
ns
ps
%
ps
Notes
1
1
1
1
1
1
Group to Group Skews at Common Transition Edges
GROUP
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
3V66 to PCI
DOT-USB
S_3V66-PCI 3V66 (4:0) leads 33MHz PCI 1.50 2.0 3.50
ns
S_{DOT_USB}
180 degrees out of phase 0.00
1.00
ns
DOT-VCH
S_{DOT_VCH}
in phase
0.00
1.00
ns
0756A—09/10/04
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