74F398 Ver la hoja de datos (PDF) - Fairchild Semiconductor
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74F398 Datasheet PDF : 9 Pages
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AC Electrical Characteristics
Symbol
Parameter
fMAX
Input Clock Frequency
tPLH
Propagation Delay
tPHL
CP to Q or Q
Note 4: 74F398 3.3 ns
AC Operating Requirements
Symbol
Parameter
tS(H)
tS(L)
tH(H)
tH(L)
tS(H)
tS(L)
tS(H)
tS(L)
tH(H)
tH(L)
tW(H)
tW(L)
Setup Time, HIGH or LOW
In to CP
Hold Time, HIGH or LOW
In to CP
Setup Time, HIGH or LOW
S to CP (F398)
Setup Time, HIGH or LOW
S to CP (F399)
Hold Time, HIGH or LOW
S to CP
CP Pulse Width
HIGH or LOW
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min
Typ
Max
100
140
3.0 (Note 4)
5.7
7.5
3.0
6.8
9.0
TA = 0°C to +70°C
VCC = +5.0V
CL = 50 pF
Min
Max
100
3.0
8.5
3.0
10.0
Units
MHz
ns
TA = +25°C
VCC = +5.0V
Min
Max
3.0
3.0
1.0
1.0
7.5
7.5
7.5
7.5
0
0
4.0
5.0
TA = 0°C to +70°C
VCC = +5.0V
Min
Max
3.0
3.0
1.0
1.0
8.5
8.5
8.5
8.5
0
0
4.0
5.0
Units
ns
ns
ns
5
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