74LVQ245SJ(1998) 查看數據表（PDF） - Fairchild Semiconductor
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74LVQ245SJ
(Rev.:1998)
(Rev.:1998)
Fairchild Semiconductor
74LVQ245SJ Datasheet PDF : 6 Pages
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AC Electrical Characteristics
Symbol
Parameter
VCC
(V)
TA = +25˚C
CL = 50 pF
TA = −40˚C to +85˚C
CL = 50 pF
Units
Min
Typ
Max
Min
Max
tPHL
tPLH
tPZL
tPZH
tPHZ
tPLZ
tOSHL
tOSLH
Propagation Delay
Output Enable Time
Output Disable Time
Output to Output
Skew (Note 9)
2.7
2.0
9.0
14.0
2.0
15.0
ns
3.3 ±0.3
2.0
7.5
10.0
2.0
10.5
2.7
3.0
10.2
18.3
3.0
19.0
ns
3.3 ±0.3
3.0
8.5
13.0
3.0
13.5
2.7
1.0
10.2
20.4
1.0
21.0
ns
3.3 ±0.3
1.0
8.5
14.5
1.0
15.0
2.7
1.0
1.5
1.5
ns
3.3 ±0.3
1.0
1.5
1.5
Note 9: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The speci-
fication applies to any outputs switching in the same direction, either HIGH to LOW (tOSHL) or LOW to HIGH (tOSLH). Parameterguaranteed by design.
Capacitance
Symbol
Parameter
Typ
CIN
Input Capacitance
4.5
CI/O
Input/Output Capacitance
15
CPD (Note 10)
Power Dissipation Capacitance
67
Note 10: CPD is measured at 10 MHz.
Units
pF
pF
pF
Conditions
VCC = Open
VCC = 3.3V
VCC = 3.3V
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