74HC137U データシートの表示（PDF） - Philips Electronics
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74HC137U Datasheet PDF : 8 Pages
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Philips Semiconductors
3-to-8 line decoder/demultiplexer with
address latches; inverting
Product specification
74HC/HCT137
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
+25
min. typ. max.
74HC
−40 to +85
min. max.
UNIT
−40 to +125
min. max.
VCC WAVEFORMS
(V)
tPHL/ tPLH
propagation delay
An to Yn
tPHL/ tPLH
propagation delay
LE to Yn
58 180
225
270
2.0
21 36
45
54 ns 4.5 Fig.6
17 31
38
46
6.0
55 190
240
285
2.0
20 38
48
57 ns 4.5 Fig.7
16 32
41
48
6.0
tPHL/ tPLH
propagation delay
E1 to Yn
50 145
180
220
2.0
18 29
36
44 ns 4.5 Fig.7
14 25
31
38
6.0
tPHL/ tPLH
propagation delay
E2 to Yn
tTHL/ tTLH output transition time
50 145
180
220
2.0
18 29
36
44 ns 4.5 Fig.6
14 25
31
38
6.0
19 75
95
110
2.0
7 15
19
22 ns 4.5 Fig.6
6 13
16
19
6.0
tW
LE pulse width
HIGH
50 11
10 4
93
65
75
13
15
11
13
2.0
ns 4.5 Fig.8
6.0
tsu
set-up time
An to LE
th
hold time
An to LE
50 3
10 1
91
30 3
61
51
65
75
13
15
11
13
40
45
8
9
7
8
2.0
ns 4.5 Fig.8
6.0
2.0
ns 4.5 Fig.8
6.0
December 1990
5
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