ICS9250-12 Datasheet, PDF (8/12 Pages) Integrated Circuit Systems – Frequency Timing Generator for PENTIUM II/III Systems

ICS9250-12
Electrical Characteristics - CPUCLK
T_A = 0 - 70º C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN
Output High Voltage
V_OH2B I_OH = -12.0 mA
2
Output Low Voltage
V_OL2B I_OL = 12 mA
Output High Current
I_OH2B V_OH = 1.7 V
Output Low Current
I_OL2B
V_OL = 0.7 V
19
Rise Time
t_r2B1
V_OL = 0.4 V, V_OH = 2.0 V
0.4
Fall Time
t_f2B1
V_OH = 2.0 V, V_OL = 0.4 V
0.4
Duty Cycle
d_t2B1
V_T = 1.25 V
45
Skew
t_sk2B1
V_T = 1.25 V
Jitter, Absolute
t_jabs2B1
V_T = 1.25 V
-150
Jitter, Cycle-to-cycle t_jcyc-cyc2B1 V_T = 1.25 V
1_{Guaranteed by design, not 100% tested in production.}
TYP MAX UNITS
2.2
V
0.3 0.4
V
-35 -19 mA
27
mA
1.2 1.6 ns
1.25 1.6 ns
48
55
%
80 175 ps
61 +150 ps
100 150 ps
Electrical Characteristics - CPU/2
T_A = 0 - 70º C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN
Output High Voltage
V_OH2B I_OH = -12.0 mA
2
Output Low Voltage
V_OL2B I_OL = 12 mA
Output High Current
I_OH2B
V_OH = 1.7 V
Output Low Current
I_OL2B
V_OL = 0.7 V
19
Rise Time
t_r2B1
V_OL = 0.4 V, V_OH = 2.0 V
0.4
Fall Time
t_f2B1
V_OH = 2.0 V, V_OL = 0.4 V
0.4
Duty Cycle
d_t2B1
V_T = 1.25 V
45
Skew
t_sk2B1
V_T = 1.25 V
Jitter, Absolute
Jitter, Cycle-to-cycle
t_jabs2B1
t_jcyc-cyc2B1
V_T = 1.25 V
V_T = 1.25 V
-250
1_{Guaranteed by design, not 100% tested in production.}
TYP MAX UNITS
2.3
V
0.3 0.4 V
-35 -19 mA
27
mA
1.1 1.6 ns
1
1.6 ns
48
55
%
80 175 ps
70 +250 ps
100 150 ps
8