ICS952623 Datasheet, PDF (10/27 Pages) Integrated Circuit Systems – Programmable Timing Control Hub for Next Gen P4 processor

Integrated
Circuit
Systems, Inc.
ICS952623
Advance Information
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
Long Accuracy
ppm¹
see Tperiod min-max values
Clock period
Output High Voltage
Output Low Voltage
T_period
V_OH1
V_OL1
14.318MHz output nominal
I_OH = -1 mA
I_OL = 1 mA
Output High Current
I_OH1
V _OH @MIN = 1.0 V,
V _OH@MAX = 3.135 V
Output Low Current
I_OL1
V_OL @MIN = 1.95 V,
V_OL @MAX = 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_t
1
1
V_T = 1.5 V
Jitter
t_jcyc-cyc1
V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
-300
69.8270
2.4
-29
29
1
1
45
300
ppm
69.8550 ns
V
0.4
V
-23
mA
27
mA
2
ns
2
ns
500
ps
55
%
1000
ps
Group to Group Skews at Common Transition Edges
GROUP
SYMBOL
CONDITIONS
MIN TYP MAX
3V66 to PCI
DOT-USB
DOT-VCH
S_3V66-PCI
S_{DOT_USB}
S_{DOT_VCH}
3V66 (4:0) leads 33MHz PCI
180 degrees out of phase
in phase
1.50
0.00
0.00
3.50
1.00
1.00
UNITS
ns
ns
ns
0758—02/08/05
10