IN74HC138A
AC ELECTRICAL CHARACTERISTICS
(C
L
=50pF,Input t
r
=t
f
=6.0 ns)
V
CC
Symbol
Parameter
V
Guaranteed Limit
25
°C
to
-55°C
135
27
23
110
22
19
120
24
20
75
15
13
10
≤85°C
≤125°C
Unit
t
PLH
, t
PHL
Maximum Propagation Delay, Input A to
Output Y (Figures 1 and 4)
Maximum Propagation Delay , CS1 to
Output Y (Figures 2 and 4)
Maximum Propagation Delay , CS2 or CS3 to
Output Y (Figures 3 and 4)
Maximum Output Transition Time, Any Output
(Figures 2 and 4)
Maximum Input Capacitance
Power Dissipation Capacitance (Per Package)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
-
170
34
29
140
28
24
150
30
26
95
19
16
10
205
41
35
165
33
28
180
36
31
110
22
19
10
ns
t
PLH
, t
PHL
ns
t
PLH
, t
PHL
ns
t
TLH
, t
THL
ns
C
IN
pF
Typical @25°C,V
CC
=5.0 V
55
pF
C
PD
Used to determine the no-load dynamic power
consumption:
P
D
=C
PD
V
CC2
f+I
CC
V
CC
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
144
INTEGRAL [ INTEGRAL CORP. ]
