74HCT240PW 查看數據表（PDF） - NXP Semiconductors.
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74HCT240PW Datasheet PDF : 18 Pages
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NXP Semiconductors
74HC240; 74HCT240
Octal buffer/line driver; 3-state; inverting
10. Dynamic characteristics
Table 7. Dynamic characteristics
GND = 0 V; for load circuit see Figure 8.
Symbol Parameter
Conditions
74HC240
tpd
propagation delay nAn to nYn;
see Figure 6
VCC = 2.0 V
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
ten
enable time
nOE to nYn; see Figure 7
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
tdis
disable time
nOE to nYn or see Figure 7
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
tt
transition time
see Figure 6
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
CPD
power dissipation per transceiver;
capacitance
VI = GND to VCC
25 °C
−40 °C to +125 °C Unit
Min Typ Max Max
Max
(85 °C) (125 °C)
[1]
-
-
-
-
[2]
-
-
-
[3]
-
-
-
[4]
-
-
-
[5]
-
30
100
125
11
20
25
9
-
-
9
17
21
39
150
190
14
30
38
11
26
33
41
150
190
15
30
38
12
26
33
14
60
75
5
12
15
4
10
13
30
-
-
150 ns
30 ns
- ns
26 ns
225 ns
45 ns
38 ns
225 ns
45 ns
38 ns
90 ns
18 ns
15 ns
- pF
74HC_HCT240_3
Product data sheet
Rev. 03 — 2 August 2007
© NXP B.V. 2007. All rights reserved.
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