ICS951412 Datasheet, PDF (15/19 Pages) Integrated Circuit Systems – System Clock Chip for ATI RS480 K8-based Systems

ICS951412
Electrical Characteristics - REF-14.318MHz
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS NOTES
Long Accuracy
ppm
see Tperiod min-max values
-300
300 ppm
1
Clock period
T_period
14.318MHz output nominal 69.8270
69.8550 ns
2
Output High Voltage
V_OH
I_OH = -1 mA
2.4
V
1
Output Low Voltage
V_OL
I_OL = 1 mA
0.4
V
1
Output High Current
I_OH
V _OH @MIN = 1.0 V,
OH^{@MAX = 3.135 V}
V
-29
-23 mA
1
Output Low Current
I_OL
V_OL @MIN = 1.95 V,
@MAX = 0.4 V
V_OL
29
27 mA
1
Edge Rate
δV/δt
Rising edge rate
1
4 V/ns
1
Edge Rate
δV/δt
Falling edge rate
1
4
V/ns
1
Rise Time
Fall Time
Skew
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
1
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
1
t_sk1
V_T = 1.5 V
2
ns
1
2
ns
1
500 ps
1
Duty Cycle
d_t1
V_T = 1.5 V
45
55
%
1
Jitter, Cycle to cycle
t_jcyc-cyc
V_T = 1.5 V
1_{Guaranteed by design and characterization, not 100% tested in production.}
700 ps
1
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that REF is}
at 14.31818MHz
0883G—12/08/04
15