74VHC573FT 查看數據表（PDF） - Toshiba
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74VHC573FT Datasheet PDF : 10 Pages
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TC74VHC573F/FT/FK
AC Characteristics (input: tr = tf = 3 ns)
Characteristics
Symbol
Propagation delay
time
tpLH
(LE-Q)
tpHL
Test Condition
Ta = 25°C
Ta =
−40 to 85°C Unit
VCC (V) CL (pF) Min Typ. Max Min Max
15
―
7.6 11.9 1.0 14.0
3.3 ± 0.3
50
― 10.1 15.4 1.0 17.5
―
ns
15
―
5.0 7.7 1.0 9.0
5.0 ± 0.5
50
―
6.5 9.7 1.0 11.0
Propagation delay
time
tpLH
(D-Q)
tpHL
15
―
7.0 11.0 1.0 13.0
3.3 ± 0.3
50
―
9.5 14.5 1.0 16.5
―
ns
15
―
4.5 6.8 1.0 8.0
5.0 ± 0.5
50
―
6.0 8.8 1.0 10.0
3-state output enable
time
15
3.3 ± 0.3
tpZL
50
RL = 1 kΩ
tpZH
15
5.0 ± 0.5
50
―
7.3 11.5 1.0 13.5
―
9.8 15.0 1.0 17.0
ns
―
5.2 7.7 1.0 9.0
―
6.7 9.7 1.0 11.0
3-state output disable
time
tpLZ
3.3 ± 0.3
50
RL = 1 kΩ
tpHZ
5.0 ± 0.5
50
― 10.7 14.5 1.0 16.5
ns
―
6.7 9.7 1.0 11.0
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
CIN
―
―
4
10
―
10
pF
Output capacitance
Power dissipation
capacitance
COUT
CPD
―
―
6
―
―
―
pF
(Note 2) ―
29
―
―
―
pF
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/8 (per latch)
And the total CPD when n pcs. of latch operate can be gained by the following equation:
CPD (total) = 21 + 8·n
5
2007-10-01
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