ICS9248-199 Datasheet, PDF (14/21 Pages) Integrated Circuit Systems – Frequency Generator for SIS 735/740 with AMD K7 Processor

ICS9248-199
Electrical Characteristics - IOAPIC
T_A = 0 - 70°C; V_DD = 3.3V +/-5%; C_L = 20 pF (unless otherwise specified)
PARAMETER
Output Impedance¹
Output Impedance¹
SYMBOL
R_DSP4B
R_DSN4B
CONDITIONS
V_O=V_DD*(0.5)
V_O=V_DD*(0.5)
Output High Voltage
V_OH4 I_OH = -14 mA
Output Low Voltage
V_OL4
I_OL = 6 mA
Output High Current
I_OH4
V_OH = 2.0 V
Output Low Current
Rise Time¹
Fall Time¹
Duty Cycle¹
I_OL4
V_OL = 0.8 V
t_r4
V_OL = 0.4 V, V_OH = 2.4 V
t_f4
V_OH = 2.4 V, V_OL = 0.4 V
d_t4
V_T = 1.5 V
24_48 MHz, AGP
Jitter, Cycle-to-Cycle¹
t_jcyc-cyc4 V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
24_48 MHz
MIN TYP MAX UNITS
20
60
Ω
20
60
Ω
2.4
V
0.4
V
-20 mA
10
mA
0.7
2
ns
0.8
2
ns
45
50
55
%
235 500 ps
0376E—12/23/02
14