74AC245CW 查看數據表（PDF） - Fairchild Semiconductor
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74AC245CW Datasheet PDF : 10 Pages
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AC Electrical Characteristics for ACT
Symbol
Parameter
tPLH
Propagation Delay
An to Bn or Bn to An
tPHL
Propagation Delay
An to Bn or Bn to An
tPZH
Output Enable Time
tPZL
Output Enable Time
tPHZ
Output Disable Time
tPLZ
Output Disable Time
Note 8: Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 8)
5.0
5.0
5.0
5.0
5.0
5.0
TA = +25°C
CL = 50 pF
Min
Typ
Max
1.5
4.0
7.5
1.5
4.0
8.0
1.5
5.0
10.0
1.5
5.5
10.0
1.5
5.5
10.0
2.0
5.0
10.0
Capacitance
TA = −40°C to +85°C
CL = 50 pF
Min
Max
1.5
8.0
1.0
9.0
1.5
11.0
1.5
12.0
1.0
11.0
1.5
11.0
Symbol
CIN
CI/O
CPD
Parameter
Input Capacitance
Input/Output Capacitance
Power Dissipation Capacitance
Typ
4.5
15.0
45.0
Units
pF
pF
pF
Conditions
VCC = OPEN
VCC = 5.0V
VCC = 5.0V
Units
ns
ns
ns
ns
ns
ns
5
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