ICS9248-134 Datasheet, PDF (9/13 Pages) Integrated Circuit Systems – Frequency Timing Generator for PENTIUM II/III Systems

ICS9248-134
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 Impedance¹
R_DSP4B V_O = V_DD*(0.5)
13.5
Output Impedance¹
R_DSN4B 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
26
31
2.24
0.31
-31
26
1.6
1.6
49
139
245
MAX UNITS
45
Ω
45
Ω
V
0.4 V
-19 mA
mA
2
ns
2
ns
55
%
250 ps
500 ps
9