ICS9248-72 Datasheet, PDF (9/12 Pages) Integrated Circuit Systems – Frequency Timing Generator for PENTIUM II Systems

ICS9248-72
Preliminary Product Preview
Electrical Characteristics - CPU
T_A = 0 - 70C, V_DDL = 2.5 V +/-5%; C_L = 10 - 20 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
Output Impedance
R_DSP2B1 V_O = V_DD*(0.5)
Output High Voltage V_OH2B I_OH = -1 mA
Output Low Voltage V_OL2B I_OL = 1 mA
Output High Current
I_OH2B V_{OH @MIN}= 1.0V , V_{OH@ MAX}= 2.375V
Output Low Current
I_OL2B V_{OL @MIN}= 1.2V , V_{OL@ MAX}= 0.3V
Rise Time
t_r2B1 V_OL = 0.4 V, V_OH = 2.0 V
Fall Time
t_f2B1 V_OH = 0.4 V, V_OL = 2.0 V
Duty Cycle
d_t2B1 V_T = 1.25 V
Skew
t_sk2B1 V_T = 1.25 V
Jitter
t_jcyc-cyc1 V_T = 1.25 V
1_{Guarenteed by design, not 100% tested in production.}
MIN TYP MAX UNITS
13.5
45 Ω
2
V
0.4 V
-27
-27 mA
27
30 mA
0.4
1.6 ns
0.4
1.6 ns
45
55 ns
175 ps
250 ps
Electrical Characteristics - CPU/2
T_A = 0 - 70C, V_DDL = 2.5 V +/-5%; C_L = 10 - 20 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
Output Impedance
R_DSP2B1 V_O = V_DD*(0.5)
Output High Voltage V_OH2B I_OH = -1 mA
Output Low Voltage V_OL2B I_OL = 1 mA
Output High Current
I_OH2B V_OH@MIN= 1.0V , V_OH@MAX= 2.375V
Output Low Current
I_OL2B V_{OL @MIN}= 1.2V , V_{OL@ MAX}= 0.3V
Rise Time
t_r2B1 V_OL = 0.4 V, V_OH = 2.0 V
Fall Time
t_f2B1 V_OH = 0.4 V, V_OL = 2.0 V
Duty Cycle
d_t2B1 V_T = 1.25 V
Jitter
t_jcyc-cyc1 V_T = 1.25 V
1_{Guarenteed by design, not 100% tested in production.}
MIN TYP MAX UNITS
13.5
45 Ω
2
V
0.4 V
-27
-27 mA
27
30 mA
0.4
1.6 ns
0.4
1.6 ns
45
55 ns
250 ps
9