ICS951901 Datasheet, PDF (9/19 Pages) Integrated Circuit Systems – Programmable Frequency Generator & Integrated Buffers for Pentium III Processor

ICS951901
Electrical Characteristics - CPU
T_A = 0 - 70°C; V_DDL = 2.5 V +/-5%; VDDL = 2.5 V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output Impedance¹
Output Impedance¹
R_DSP2B
R_DSN2B
V_O = V_DD*(0.5)
V_O = V_DD*(0.5)
10
20
10
20
Output High Voltage V_OH2B I_OH = -12.0 mA
2
V
Output Low Voltage V_OL2B I_OL = 12 mA
0.4 V
Output High Current I_OH2B V_OH = 1.7 V
-19 mA
Output Low Current
Rise Time¹
Fall Time¹
Duty Cycle¹
I_OL2B
t_r2B
t_f2B
d_t2B
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
19
mA
0.4 1.2 1.6 ns
0.4 1.1 1.6 ns
45 46.9 55 %
Skew window^0:1
t_sk2B V_T = 1.25 V
43 175 ps
Skew window^0:2
t_sk2B V_T = 1.25 V
142 375 ps
Jitter, Cycle-to-cycle¹ tjcyc-cyc VT = 1.25 V, CPU=66 MHz
1_{Guaranteed by design, not 100% tested in production.}
177 250 ps
Electrical Characteristics - 24-48MHz
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%;VDDL = 2.5 V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Output Impedance
Output Impedance
R_DSP5B1
R_DSN5B1
V_O = V_DD*(0.5)
V_O = V_DD*(0.5)
20
60
20
60
Output High Voltage
V_OH15 I_OH = -14 mA
2.4
Output Low Voltage
V_OL5 I_OL = 6.0 mA
0.4
Output High Current
I_OH5
V_OH = 2.0 V
-20
Output Low Current
Rise Time¹
Fall Time¹
Duty Cycle¹
Jitter
I_OL5
V_OL = 0.8 V
t_r5
V_OL = 0.4 V, V_OH = 2.4 V
t_f5
V_OH = 2.4 V, V_OL = 0.4 V
d_t5
V_T = 1.5 V
t_{cycle to cycle} V_T = 1.5 V
10
0.4 1.45 4
0.4 1.5
4
45 52.5 55
210 500
1_{Guaranteed by design, not 100% tested in production.}
UNITS
V
V
mA
mA
ns
ns
%
ps
0670B—07/15/04
9