74F109 查看數據表（PDF） - Fairchild Semiconductor
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74F109 Datasheet PDF : 7 Pages
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AC Electrical Characteristics
Symbol
Parameter
fMAX
tPLH
tPHL
tPLH
tPHL
Maximum Clock Frequency
Propagation Delay
CPn to Qn or Qn
Propagation Delay
CDn or SDn to
Qn or Qn
AC Operating Requirements
Symbol
Parameter
tS(H)
tS(L)
tH(H)
tH(L)
tW(H)
tW(L)
tW(L)
tREC
Setup Time, HIGH or LOW
Jn or Kn to CPn
Hold Time, HIGH or LOW
Jn or Kn to CPn
CPn Pulse Width
HIGH or LOW
CDn or SDn Pulse Width LOW
Recovery Time
CDn or SDn to CP
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min
Typ
Max
100
125
3.8
5.3
7.0
4.4
6.2
8.0
3.2
5.2
7.0
3.5
7.0
9.0
TA = 0°C to +70°C
VCC = +5.0V
CL = 50 pF
Min
Max
90
3.8
8.0
4.4
9.2
3.2
8.0
3.5
10.5
Units
MHz
ns
ns
ns
TA = +25°C
VCC = +5.0V
Min
Max
3.0
3.0
1.0
1.0
4.0
5.0
4.0
2.0
TA = 0°C to +70°C
VCC = +5.0V
Min
Max
3.0
3.0
1.0
1.0
4.0
5.0
4.0
2.0
Units
ns
ns
ns
ns
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