TECHNICAL DATA
IN74LV138
ORDERING INFORMATION
IN74LV138N Plastic DIP
IN74LV138D SOIC
T
A
= -40
to 125 C
for all packages
3-TO-8 DECODER/DEMULTIPLEXER
By pinning IN74LV138 are compatible with IN74HC138A and
IN74HCT138A series. Input voltage levels are compatible with
standard CMOS ones.
Output voltage levels are compatible with input levels of
CMOS, NMOS and TTL IC
S
Supply voltage range is from 1.2 to 5.5 V
Low input current: 1.0 ; 0.1 at = 25
Output current 6 m
Latch current is not less than 150 m at = 125
ESD acceptable values: than 2000 V as per HBM, and not
less than 200 V as per MM
BLOCK DIAGRAM
A0
A1
A2
CS3
CS2
CS1
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
PIN ASSIGNMENT
1
2
3
5
4
6
7
8
GND
16
15
14
13
12
11
10
9
V
CC
A0
A1
Y7
Q6
Q5
A2
CS2
Cs3
CS1
Q1
Q0
Q2
Q3
Q4
FUNCTION TABLE
INPUTS OUTPUTS
CS1 CS2 CS3 A2 A1 A0 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
X X H X X X H H H H H H H H
X H X X X X H H H H H H H H
L X X X X X H H H H H H H H
H L L L L L L H H H H H H H
H L L L L H H L H H H H H H
H L L L H L H H L H H H H H
H L L L H H H H H L H H H H
H L L H L L H H H H L H H H
H L L H L H H H H H H L H H
H L L H H L H H H H H H L H
H L L H H H H H H H H H H L
H - HIGH voltage level; L - LOW voltage level; X - don't care ( or L)
1
IN74LV138
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter
Rating
Unit
Conditions
Vcc
Supply voltage
-0.5 to +7.0
V
Iik
Input diode current
20
mA V
I
<-0.5 V orV
I
>Vcc>+0.5 V
Iok
Output diode current
50
mA V
0
<-0.5 V or V
I
>Vcc>+0.5 V
Io
Output current standard output
25
m -0.5 V<Vo<Vcc+0.5 V
Icc
DC Vcc, standard output
50
m
I
GND
GND
current
50
m
Tstg
Starage temperature range
-65 to +150
P
D
Power dissipation per package:
DIP
SO
750
500
mW
Notes:
Power dissipation value decreases for:
DIP - 12 mW
C in the range from 70 to 125
SO - 8 mW
C in the range from 70 to 125
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min
Max
Unit
Conditions
Vcc Supply
voltage
1.2 5.5 V
V
I
Input
voltage
0 Vcc V
V Output
voltage
0 Vcc V
T
Ambient temperature range
-40
+125
o
C
t
r
,t
f
Input rise and fall times
500
200
100
50
ns/V
Vcc= 1.0
2.0 V
Vcc= 2.0
2.7 V
Vcc= 2.7
3.6 V
Vcc= 3.6
5.5 V
2