74VHC245CW データシートの表示（PDF） - Fairchild Semiconductor
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74VHC245CW Datasheet PDF : 6 Pages
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Noise Characteristics
Symbol
Parameter
VOLP
(Note 3)
VOLV
(Note 3)
VIHD
(Note 3)
Quiet Output Maximum
Dynamic VOL
Quiet Output Minimum
Dynamic VOL
Minimum HIGH Level
Dynamic Input Voltage
VILD
(Note 3)
Maximum LOW Level
Dynamic Input Voltage
Note 3: Parameter guaranteed by design.
VCC
TA = 25°C
Units
(V)
Typ
Limits
Conditions
5.0
0.9
1.2
V
CL = 50 pF
5.0
−0.9
−1.2
V
CL = 50 pF
5.0
3.5
V
CL = 50 pF
5.0
1.5
V
CL = 50 pF
AC Electrical Characteristics
Symbol
Parameter
VCC
(V)
TA = 25°C
TA = −40°C to +85°C
Units
Min
Typ
Max
Min
Max
Conditions
tPLH
Propagation Delay
tPHL
Time
tPZL
3-STATE Output
tPZH
Enable Time
tPLZ
tPHZ
tOSLH
tOSHL
CIN
3-STATE Output
Disable Time
Output to Output
Skew
Input Capacitance
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
5.8
8.4
1.0
10.0
ns
8.3
11.9
1.0
13.5
CL = 15 pF
CL = 50 pF
4.0
5.5
1.0
6.5
ns
5.5
7.5
1.0
8.5
CL = 15 pF
CL = 50 pF
8.5
13.2
1.0
15.5
ns RL = 1 kΩ CL = 15 pF
11.0
16.7
1.0
19.0
CL = 50 pF
5.8
8.5
1.0
10.0
ns
7.3
10.6
1.0
12.0
CL = 15 pF
CL = 50 pF
11.5
15.8
1.0
18.0
ns RL = 1 kΩ CL = 50 pF
7.0
9.7
1.0
11.0
CL = 50 pF
1.5
1.5
ns (Note 4) CL = 50 pF
1.0
1.0
CL = 50 pF
4
10
10
pF VCC = Open
(T/R, OE)
CI/O
Output Capacitance
8
CPD
Power Dissipation
21
Capacitance
pF VCC = 5.0V
pF (Note 5)
Note 4: Parameter guaranteed by design. tOSLH = |tPLH max − tPLH min|; tOSHL = |tPHL max − tPHL min|
Note 5: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average
operating current can be obtained by the equation: ICC (opr.) = CPD * VCC * fIN + ICC/8 (per Bit).
3
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