CD54AC138 Datasheet, PDF (5/7 Pages) Texas Instruments – 3-to-8-Line Decoders/Demultiplexers

CD54/74AC138, CD54/74ACT138, CD74AC238, CD74ACT238
Switching Specifications Input t_r, t_f = 3ns, C_L = 50pF (Worst Case)
-40^oC TO 85^oC
PARAMETER
AC TYPES
SYMBOL
V_CC (V)
MIN
TYP MAX
Propagation Delay,
An to Output
(CD54/74AC/ACT138)
t_PLH, t_PHL
1.5
-
3.3
4
(Note 11)
-
125
-
14
5
2.8
(Note 12)
-
10
Propagation Delay,
E1, E2 to Output
(CD54/74AC/ACT138)
t_PLH, t_PHL
1.5
-
-
114
3.3
3.6
-
12.7
5
2.6
-
9.1
Propagation Delay,
E3 to Output
(CD54/74AC/ACT138)
t_PLH, t_PHL
1.5
3.3
-
-
125
4
-
14
5
2.8
-
10
Propagation Delay,
An to Output
(CD74AC/ACT238)
t_PLH, t_PHL
1.5
-
-
170
3.3
5.4
-
19.1
5
3.9
-
13.6
Propagation Delay,
E1, E2 to Output
(CD74AC/ACT238)
t_PLH, t_PHL
1.5
-
-
135
3.3
4.3
-
15.2
5
3.1
-
10.7
Propagation Delay,
E3 to Output
(CD74AC/ACT238)
t_PLH, t_PHL
1.5
3.3
-
-
189
6
-
21.1
5
4.3
-
15.1
Input Capacitance
C_I
-
Power Dissipation Capacitance
C_PD
-
(Note 13)
-
-
10
-
110
-
ACT TYPES
Propagation Delay,
An to Output
(CD54/74AC/ACT138)
t_PLH, t_PHL
5
3.1
(Note 12)
-
10.9
Propagation Delay,
E1, E2 to Output
(CD54/74AC/ACT138)
t_PLH, t_PHL
5
2.7
-
9.5
Propagation Delay,
E3 to Output
(CD54/74AC/ACT138)
t_PLH, t_PHL
5
2.8
-
10
Propagation Delay,
An to Output
(CD74AC/ACT238)
t_PLH, t_PHL
5
4
-
14.2
Propagation Delay,
E1, E2 to Output
(CD74AC/ACT238)
t_PLH, t_PHL
5
3.7
-
12.9
-55^oC TO 125^oC
MIN
TYP
MAX
UNITS
-
-
138
ns
3.9
-
15.4
ns
2.8
-
11
ns
-
-
125
ns
3.5
-
14
ns
2.5
-
10
ns
-
-
138
ns
3.9
-
15.4
ns
2.8
-
11
ns
-
-
187
ns
5.3
-
21
ns
3.8
-
15
ns
-
-
149
ns
4.2
-
16.7
ns
3
-
11.9
ns
-
-
208
ns
5.8
-
23.2
ns
4.2
-
16.6
ns
-
-
10
pF
-
110
-
pF
3
-
12
ns
2.6
-
10.5
ns
2.8
-
11
ns
3.9
-
15.6
ns
3.6
-
14.2
ns
5