ICS9248-97 Datasheet, PDF (10/14 Pages) Integrated Circuit Systems – Frequency Timing Generator for PENTIUM II Systems

ICS9248-97
Electrical Characteristics - IOAPIC
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 Impedance
R_DSP4B1 V_O = V_DD*(0.5)
13.5
Output Impedance
R_DSN4B1 V_O = V_DD*(0.5)
13.5
Output High Voltage
V_OH4B I_OH = -12.0 mA
2
Output Low Voltage
V_OL4B I_OL = 12.0 mA
Output High Current
I_OH4B V_OH = 1.7 V
Output Low Current
I_OL4B
V_OL = 0.7 V
19
Rise Time¹
T_r4B
V_OL = 0.4 V, V_OH = 2.0 V
Fall Time¹
T_f4B
V_OH = 2.0 V, V_OL = 0.4 V
Duty Cycle¹
D_t4B
V_T = 1.25 V
45
Skew ¹
t_sk4B
V_T = 1.25 V
Jitter, Cycle-to-cycle¹ _{Tjcyc-cyc4B VT = 1.25 V}
1_{Guaranteed by design, not 100% tested in production.}
TYP MAX UNITS
26
45
Ω
31
45
Ω
2.24
V
0.31 0.4
V
-31 -19 mA
26
mA
1.62 2
ns
1.57 2
ns
48.6 55
%
52 250 ps
245 500 ps
10