IN74ACT643
AC ELECTRICAL CHARACTERISTICS(VCC=5.0 V ± 10%, CL=50pF,Input tr=tf=3.0 ns)
Guaranteed Limits
Symbol
Parameter
Unit
25 °C
-40°C to
85°C
Min Max Min
Max
9.0
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay, A to B or B to A 1.5
8.0
1.0
ns
ns
ns
ns
ns
ns
(Figure 1)
Propagation Delay, A to B or B to A 1.5
(Figure 1)
8.0
1.0
9.0
Propagation Delay, Direction or Output 1.5 10.5 1.0
Enable to A or B (Figure 2)
11.5
11.5
11.5
11.5
Propagation Delay, Direction or Output 1.5 10.5 1.0
Enable to A or B (Figure 2)
Propagation Delay, Direction or Output 1.5 10.5 1.0
Enable to A or B (Figure 2)
Propagation Delay, Direction or Output 1.5 10.5 1.0
Enable to A or B (Figure 2)
CIN
COUT
Maximum Input Capacitance
Maximum Tree-State I/O Capacitance
(Output in High-Impedance State0
4.5
15
4.5
15
pF
pF
Typical @25°C,VCC=5.0 V
CPD
Power Dissipation Capacitance
45
pF
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
4
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