74VHC125FK データシートの表示（PDF） - Toshiba
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74VHC125FK Datasheet PDF : 11 Pages
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TC74VHC125,126F/FN/FT/FK
AC Characteristics (input: tr = tf = 3 ns)
Characteristics
Symbol
Test Condition
Ta = 25°C
Ta =
−40 to 85°C Unit
VCC (V) CL (pF) Min Typ. Max Min Max
Propagation delay
tpLH
time
tpHL
15
⎯
5.6
8.0
1.0
9.5
3.3 ± 0.3
50
⎯
8.1 11.5 1.0 13.0
⎯
ns
15
⎯
3.8
5.5
1.0
6.5
5.0 ± 0.5
50
⎯
5.3
7.5
1.0
8.5
Output enable time
15
3.3 ± 0.3
tpZL
50
RL = 1 kΩ
tpZH
15
5.0 ± 0.5
50
⎯
5.4
8.0
1.0
9.5
⎯
7.9 11.5 1.0 13.0
ns
⎯
3.6
5.1
1.0
6.0
⎯
5.1
7.1
1.0
8.0
Output disable time
tpLZ
3.3 ± 0.3
50
RL = 1 kΩ
tpHZ
5.0 ± 0.5
50
⎯
9.5 13.2 1.0 15.0
ns
⎯
6.1
8.8
1.0 10.0
Output to output skew
tosLH
tosHL
3.3 ± 0.3
50
(Note 1)
5.0 ± 0.5
50
⎯
⎯
1.5
⎯
1.5
ns
⎯
⎯
1.0
⎯
1.0
Input capacitance
Output capacitance
Power dissipation
capacitance (Note 2)
CIN
COUT
CPD
⎯
⎯
TC74VHC125
TC74VHC126
⎯
4
10
⎯
10
pF
⎯
6
⎯
⎯
⎯
pF
⎯
14
⎯
⎯
⎯
pF
⎯
15
⎯
⎯
⎯
Note 1: Parameter guaranteed by design.
tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|
Note 2: 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/4 (per gate)
Noise Characteristics (input: tr = tf = 3 ns)
Characteristics
Symbol
Quiet output maximum dynamic
VOL
Quiet output minimum dynamic
VOL
Minimum high level dynamic input
voltage
Maximum low level dynamic input
voltage
VOLP
CL = 50 pF
VOLV
CL = 50 pF
VIHD
VILD
CL = 50 pF
CL = 50 pF
Test Condition
Ta = 25°C
Unit
VCC (V) Typ. Limit
5.0
0.3 0.8
V
5.0
−0.3 −0.8
V
5.0
⎯
3.5
V
5.0
⎯
1.5
V
5
2007-10-01
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