ICS9248-55 Datasheet, PDF (7/10 Pages) Integrated Circuit Systems – Pentium/Pro/IITM System Clock Chip

ICS9248-55
Electrical Characteristics - CPUCLK
T_A = 0 - 70C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 10 - 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
Output High Voltage
Output Low Voltage
Output High Current
Output Low Current
Rise Time
Fall Time
Duty Cycle
Skew
Jitter, Cycle-to-cycle
Jitter, One Sigma
Jitter, Absolute
V_OH2B
V_OL2B
I_OH2B
I_OL2B
t_r2B1
t_f2B1
d_t2B1
t_sk2B1
t_jcyc-cyc2B1
t_j1s2B1
t_jab
1
s2B
I_OH = -12.0 mA
I_OL = 12 mA
V_OH = 1.7 V
V_OL = 0.7 V
V_OL = 0.4 V, V_OH = 2.0 V
V_OH = 2.0 V, V_OL = 0.4 V
V_T = 1.25 V
V_T = 1.25 V
V_T = 1.25 V
V_T = 1.25 V
V_T = 1.25 V
2
2.3
0.2
-41
19 37
1.25
1
45 48
30
150
40
-250 140
1_{Guaranteed by design, not 100% tested in production.}
MAX UNITS
V
0.4 V
-19 mA
mA
1.6 ns
1.6 ns
55 %
175 ps
200 ps
150 ps
+250 ps
Electrical Characteristics - IOAPIC
T_A = 0 - 70C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 20 pF
PARAMETER SYMBOL
CONDITIONS
Output High Voltage
Output Low Voltage
Output High Current
V_OH4B
V_OL4B
I_OH4B
I_OH = -18 mA
I_OL = 18 mA
V_OH = 1.7 V
Output Low Current
Rise Time¹
Fall Time¹
Duty Cycle¹
Skew¹
Jitter, One Sigma¹
Jitter, Absolute¹
I_OL4B
T_r4B
T_f4B
D_t4B
t_sk4B1
T_j1s4B
T_jabs4B
V_OL = 0.7 V
V_OL = 0.4 V, V_OH = 2.0 V
V_OH = 2.0 V, V_OL = 0.4 V
V_T = 1.25 V
V_T = 1.25 V
V_T = 1.25 V
V_T = 1.25 V
1_{Guaranteed by design, not 100% tested in production.}
MIN TYP MAX UNITS
2 2.2
V
0.33 0.4 V
-41 -28 mA
29 37
mA
1.5
2
ns
1.3
2
ns
45 54 55 %
60 250 ps
1
3
%
-5
5
%
7