74HC137 查看數據表（PDF） - NXP Semiconductors.
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74HC137 Datasheet PDF : 19 Pages
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Nexperia
74HC137
3-to-8 line decoder, demultiplexer with address latches; inverting
10. Dynamic characteristics
Table 7. Dynamic characteristics
GND = 0 V; tr = tf = 6 ns; CL = 50 pF.
Symbol Parameter
Tamb = 25 C
tpd
propagation delay
tt
transition time
tW
pulse width
tsu
set-up time
th
hold time
CPD
power dissipation capacitance
Conditions
An to Yn; see Figure 6
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VCC = 5.0 V; CL = 15 pF
LE to Yn; see Figure 7
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VCC = 5.0 V; CL = 15 pF
E1 to Yn; see Figure 7
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VCC = 5.0 V; CL = 15 pF
E2 to Yn; see Figure 6
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VCC = 5.0 V; CL = 15 pF
see Figure 6
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
LE HIGH; see Figure 8
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
An to LE; see Figure 8
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
An to LE; see Figure 8
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VI = GND to VCC
Min
[1]
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[2]
-
-
-
50
10
9
50
10
9
30
6
5
[3]
-
74HC137
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 23 December 2015
Typ
Max Unit
58
180 ns
21
36 ns
17
31 ns
18
-
ns
55
190 ns
20
38 ns
16
32 ns
17
-
ns
50
145 ns
18
29 ns
14
25 ns
15
-
ns
50
145 ns
18
29 ns
14
25 ns
15
-
ns
19
75 ns
7
15 ns
6
13 ns
11
-
ns
4
-
ns
3
-
ns
3
-
ns
1
-
ns
1
-
ns
3
-
ns
1
-
ns
1
-
ns
57
-
pF
.
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