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74HC237 Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. 74HC237
Description  3-to-8 line decoder/demultiplexer with address latches
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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74HC237 Datasheet(HTML) 6 Page - NXP Semiconductors

   
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December 1990
6
Philips Semiconductors
Product specification
3-to-8 line decoder/demultiplexer with
address latches
74HC/HCT237
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
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC
VCC
(V)
WAVEFORMS
+25
−40 to +85
−40 to +125
min.
typ.
max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
An to Yn
52
19
15
160
32
27
200
40
34
240
48
41
ns
2.0
4.5
6.0
Fig.6
tPHL/ tPLH
propagation delay
LE to Yn
61
22
18
190
38
32
240
48
41
285
57
48
ns
2.0
4.5
6.0
Fig.7
tPHL/ tPLH
propagation delay
E1 to Yn
47
17
14
145
29
25
180
36
31
220
44
38
ns
2.0
4.5
6.0
Fig.7
tPHL/ tPLH
propagation delay
E2 to Yn
47
17
14
145
29
25
180
36
31
220
44
38
ns
2.0
4.5
6.0
Fig.6
tTHL/ tTLH
output transition time
19
7
6
75
15
13
95
19
16
110
22
19
ns
2.0
4.5
6.0
Fig.6
tW
LE pulse width
LOW
50
10
9
11
4
3
65
13
11
75
15
13
ns
2.0
4.5
6.0
Fig.8
tsu
set-up time
An to LE
50
10
9
6
2
2
65
13
11
75
15
13
ns
2.0
4.5
6.0
Fig.8
th
hold time
An to LE
30
6
5
3
1
1
40
8
7
45
9
8
ns
2.0
4.5
6.0
Fig.8


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