74AC540SCX 查看數據表（PDF） - Fairchild Semiconductor
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74AC540SCX Datasheet PDF : 7 Pages
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AC Electrical Characteristics
Symbol
Parameter
tPLH
Propagation Delay
Data to Output
tPHL
Propagation Delay
Data to Output
tPZH
Output Enable Time
tPZL
Output Enable Time
tPHZ
Output Disable Time
tPLZ
Output Disable Time
Note 5: Voltage Range 3.3 is 3.3V r 0.3V
Voltage Range 5.0 is 5.0V r 0.5V
VCC
(V)
(Note 5)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation Capacitance
Min
1.5
1.5
1.5
1.5
3.0
2.0
2.5
2.0
2.5
1.5
2.5
1.5
Typ
4.5
30.0
TA 25qC
CL 50 pF
Typ
Max
5.5
7.5
4.0
6.0
5.0
7.0
4.0
5.5
8.5
11.0
6.5
8.5
7.5
10.0
6.0
7.5
8.5
13.0
7.5
10.5
7.0
10.0
6.0
8.0
TA 40qC to 85qC
CL 50 pF
Min
Max
1.0
8.0
1.0
6.5
1.0
7.5
1.0
6.0
2.5
12.0
2.0
9.5
2.0
11.0
1.5
8.5
1.5
14.0
1.0
11.0
2.0
11.0
1.5
9.0
Units
pF
pF
VCC OPEN
VCC 5.0V
Conditions
Units
ns
ns
ns
ns
ns
ns
3
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