IN74AC244
AC ELECTRICAL CHARACTERISTICS
(CL=50pF, Input tr=tf=3.0 ns)
*
VCC
V
Guaranteed Limits
Symbol
Parameter
Unit
25 °C
-40°C to
85°C
Min
Max
Min
Max
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
CIN
Propagation Delay, A to YA or B to YB
(Figure 1)
3.3
5.0
2.0
1.5
9.0
7.0
1.5
1.0
10.0
7.5
ns
ns
ns
ns
ns
ns
pF
Propagation Delay, A to YA or B to YB
(Figure 1)
3.3
5.0
2.0
1.5
9.0
7.0
2.0
1.0
10.0
7.5
Propagation Delay, Output Enable to YA or
YB (Figure 2)
3.3
5.0
2.0
1.5
10.5
7.0
1.5
1.5
11.0
8.0
Propagation Delay, Output Enable to YA or
YB (Figure 2)
3.3
5.0
2.5
1.5
10.0
8.0
2.0
1.5
11.0
8.5
Propagation Delay, Output Enable to YA or
YB (Figure 2)
3.3
5.0
3.0
2.5
10.0
9.0
1.5
1.0
10.5
9.5
Propagation Delay, Output Enable to YA or
YB (Figure 2)
3.3
5.0
2.5
2.0
10.5
9.0
2.5
2.0
11.5
9.5
Maximum Input Capacitance
5.0
4.5
4.5
Typical @25°C,VCC=5.0 V
CPD
Power Dissipation Capacitance
45
pF
*Voltage Range 3.3 V is 3.3 V ±0.3 V
Voltage Range 5.0 V is 5.0 V ±0.5 V
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
321
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