ICS952623 Datasheet, PDF (7/27 Pages) Integrated Circuit Systems – Programmable Timing Control Hub for Next Gen P4 processor

Integrated
Circuit
Systems, Inc.
ICS952623
Advance Information
Electrical Characteristics - 3V66 Mode: 3V66 [4:0]
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L = 10-30 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Long Accuracy
ppm
see Tperiod min-max values -300
300
ppm
Clock period
T_period
66.66MHz output nominal
66.66MHz output spread
14.9955
14.9955
15.0045 ns
15.0799 ns
Output High Voltage
V_OH
I_OH = -1 mA
2.4
V
Output Low Voltage
V_OL
I_OL = 1 mA
0.55
V
Output High Current
I_OH
V _OH @ MIN = 1.0 V
-33
V_OH @ MAX = 3.135 V
mA
-33
mA
Output Low Current
I_OL
Edge Rate
V_OL @ MIN = 1.95 V
30
V_OL @ MAX = 0.4 V
Rising edge rate
1
mA
38
mA
4
V/ns
Edge Rate
Falling edge rate
1
4
V/ns
Rise Time
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
0.5
2
ns
Fall Time
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
0.5
2
ns
Duty Cycle
d_t1
V_T = 1.5 V
45
55
%
Skew
t_sk1
V_T = 1.5 V
250
ps
Jitter
t_jcyc-cyc
V_T = 1.5 V 3V66
250
ps
1_{Guaranteed by design, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that Ref output is}
at 14.31818MHz
Electrical Characteristics - PCICLK/PCICLK_F
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%; C_L = 10-30 pF (unless otherwise specified)
Notes
1,2
2
2
1
1
1
1
1
1
1
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS Notes
Long Accuracy
ppm
see Tperiod min-max values
-300
300
ppm 1,2
Clock period
T_period
33.33MHz output nominal
33.33MHz output spread
29.9910
29.9910
30.0090 ns
30.1598 ns
2
2
Output High Voltage
V_OH
I_OH = -1 mA
2.4
V
Output Low Voltage
V_OL
I_OL = 1 mA
0.55
V
Output High Current
I_OH
V _OH @MIN = 1.0 V
V_OH@ MAX = 3.135 V
-33
mA
-33
mA
Output Low Current
I_OL
V_OL @ MIN = 1.95 V
V_OL @ MAX = 0.4 V
30
mA
38
mA
Edge Rate
Rising edge rate
1
4
V/ns
1
Edge Rate
Falling edge rate
1
4
V/ns
1
Rise Time
t_r1
V_OL = 0.4 V, V_OH = 2.4 V
0.5
2
ns
1
Fall Time
t_f1
V_OH = 2.4 V, V_OL = 0.4 V
0.5
2
ns
1
Duty Cycle
d_t1
V_T = 1.5 V
45
55
%
1
Skew
t_sk1
V_T = 1.5 V
500
ps
1
Jitter
t_jcyc-cyc
V_T = 1.5 V 3V66
1_{Guaranteed by design, not 100% tested in production.}
250
ps
1
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed with the assumption that Ref}
output is at 14.31818MHz
0758—02/08/05
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