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
Table 7. Dynamic characteristics …continued
GND = 0 V; tr = tf = 6 ns; CL = 50 pF.
Symbol Parameter
Conditions
Tamb = 40 C to +85 C
tpd
propagation delay
An to Yn; see Figure 6
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
LE to Yn; see Figure 7
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
E1 to Yn; see Figure 7
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
E2 to Yn; see Figure 6
tt
transition time
tW
pulse width
tsu
set-up time
th
hold time
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
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
Min
Typ
Max Unit
[1]
-
-
-
-
225 ns
-
45 ns
-
38 ns
-
-
240 ns
-
-
48 ns
-
-
41 ns
-
-
180 ns
-
-
36 ns
-
-
31 ns
-
-
-
[2]
-
-
-
-
180 ns
-
36 ns
-
31 ns
-
95 ns
-
19 ns
-
16 ns
65
-
13
-
11
-
-
ns
-
ns
-
ns
65
-
13
-
11
-
-
ns
-
ns
-
ns
40
-
8
-
7
-
-
ns
-
ns
-
ns
74HC137
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 23 December 2015
.
9 of 19
© Nexperia B.V. 2017. All rights reserved
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