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74HC138 Datasheet(PDF) 5 Page - NXP Semiconductors

Part No. 74HC138
Description  3-to-8 line decoder/demultiplexer; inverting
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo 

   
 5 page
background image
September 1993
5
Philips Semiconductors
Product specification
3-to-8 line decoder/demultiplexer; inverting
74HC/HCT138
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
41
15
12
150
30
26
190
38
33
225
45
38
ns
2.0
4.5
6.0
Fig.6
tPHL/ tPLH
propagation delay
E3 to Yn
47
17
14
150
30
26
190
38
33
225
45
38
ns
2.0
4.5
6.0
Fig.6
tPHL/ tPLH
propagation delay
En to Yn
47
17
14
150
30
26
190
38
33
225
45
38
ns
2.0
4.5
6.0
Fig.7
tTHL/ tTLH
output transition
time
19
7
6
75
15
13
95
19
16
110
22
19
ns
2.0
4.5
6.0
Figs 6 and 7




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