ICS9248-97 Datasheet, PDF (9/14 Pages) Integrated Circuit Systems – Frequency Timing Generator for PENTIUM II Systems

ICS9248-97
Electrical Characteristics - 48 M Hz
TA = 0 - 70ºC; VDD = 3.3 V +/-5%; VDDL = 2.5 V +/-5%; CL = 20 pF (unles s otherwis e s tated)
PA RA M ETER
SYM BOL
CONDITIONS
M IN
Output Impedance
RDSP 51 VO = VDD*(0.5)
20
Output Impedance
RDSN51 VO = VDD*(0.5)
20
Output High Voltage
VO H 5
IOH = -16 mA
2.4
Output Low Voltage
VO L5
IOL = 9 mA
Output High Current
IO H 5
VO H = 2.0 V
Output Low Current
IO L 5
VO L = 0.8 V
16
Ris e Time¹
tr5
VO L = 0.4 V, VOH = 2.4 V
Fall Time¹
tf5
VO H = 2.4 V, VOL = 0.4 V
Duty Cycle¹
dt5
VT = 1.5 V
45
Jitter, Cycle-to-cycle^{1 T}jcyc-cyc5 ^VT ^{= 1.5 V}
1_{Guaranteed by des ign, not 100% tes ted in production.}
TYP M A X UNITS
47
60
Ω
44
60
Ω
2.62
V
0.3
0.4
V
-27 -22 mA
22
mA
2.33
4
ns
2.42
4
ns
51
55
%
439 500 ps
Electrical Characteristics - REF
T_A = 0 - 70ºC; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 20 pF (unless otherwise stated)
PA RA METER
SYM BOL
CONDITIONS
M IN TYP
Output Impedance
RDSP 51 VO = VDD*(0.5)
20 47.6
Output Impedance
RDSN51 VO = VDD*(0.5)
20
44
Output High Voltage
VOH5 IOH = -16 mA
2.4
2.6
Output Low Voltage
VO L5
IOL = 9 mA
0.3
Output High Current
IO H 5
VOH = 2.0 V
-26
Output Low Current
Ris e Time¹
Fall Time¹
Duty Cycle¹
IO L5
VOL = 0.8 V
tr5
VOL = 0.4 V, VOH = 2.4 V
tf5
VOH = 2.4 V, VOL = 0.4 V
dt5
VT = 1.5 V
16
22
2.28
2.24
45 51.9
Jitter, Cycle-to-cycle^{1 T}jcyc-cyc5 ^VT ^{= 1.5 V}
839
1_{Guaranteed by des ign, not 100% tes ted in production.}
M A X UNITS
60
Ω
60
Ω
V
0.4
V
-22 mA
mA
4
ns
4
ns
55
%
1000 ps
9