The LSTTL/MSI SN54/74LS139 is a high speed Dual 1-of-4 Decoder /De-
multiplexer. The device has two independent decoders, each accepting two
inputs and providing four mutually exclusive active LOW Outputs. Each
decoder has an active LOW Enable input which can be used as a data input
for a 4-output demultiplexer. Each half of the LS139 can be used as a function
generator providing all four minterms of two variables. The LS139 is
fabricated with the Schottky barrier diode process for high speed and is
completely compatible with all Motorola TTL families.
SN54/74LS139
DUAL 1-OF-4 DECODER/
DEMULTIPLEXER
LOW POWER SCHOTTKY
•
•
•
•
•
•
Schottky Process for High Speed
Multifunction Capability
Two Completely Independent 1-of-4 Decoders
Active Low Mutually Exclusive Outputs
Input Clamp Diodes Limit High Speed Termination Effects
ESD > 3500 Volts
CONNECTION DIAGRAM DIP
(TOP VIEW)
VCC
16
Eb
15
AOb
14
A1b
13
O0b
12
O1b
11
O2b
10
O3b
9
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
J SUFFIX
CERAMIC
CASE 620-09
16
1
16
1
N SUFFIX
PLASTIC
CASE 648-08
1
Ea
2
A0a
3
A1a
4
O0a
5
O1a
6
O2a
7
O3a
8
GND
16
1
D SUFFIX
SOIC
CASE 751B-03
PIN NAMES
A0, A1
E
O0 – O3
Address Inputs
Enable (Active LOW) Input
Active LOW Outputs (Note b)
LOADING
(Note a)
HIGH
0.5 U.L.
0.5 U.L.
10 U.L.
LOW
0.25 U.L.
0.25 U.L.
5 (2.5) U.L.
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
NOTES:
a) 1 TTL Unit Load (U.L.) = 40
µA
HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
Temperature Ranges.
LOGIC DIAGRAM
Ea
1
2
LOGIC SYMBOL
1
2 3
15
14 13
A0a A1a
3
15
Eb
14
A0b A1b
13
E
A0 A1
E
A0 A1
DECODER a
O0 O1 O2 O3
DECODER b
O0 O1 O2 O3
VCC = PIN 16
GND = PIN 8
= PIN NUMBERS
4
5
6
7
12 11 10 9
VCC = PIN 16
GND = PIN 8
4
5
6
7
12
11
10
9
O0a
O1a
O2a
O3a
O0b
O1b
O2b
O3b
FAST AND LS TTL DATA
5-235
SN54/74LS139
FUNCTIONAL DESCRIPTION
The LS139 is a high speed dual 1-of-4 decoder/demultiplex-
er fabricated with the Schottky barrier diode process. The
device has two independent decoders, each of which accept
two binary weighted inputs (A0, A1) and provide four mutually
exclusive active LOW outputs (O0 – O3). Each decoder has an
active LOW Enable (E). When E is HIGH all outputs are forced
HIGH. The enable can be used as the data input for a 4-output
demultiplexer application.
Each half of the LS139 generates all four minterms of two
variables. These four minterms are useful in some applica-
tions, replacing multiple gate functions as shown in Fig. a, and
thereby reducing the number of packages required in a logic
network.
TRUTH TABLE
INPUTS
E
H
L
L
L
L
A0
X
L
H
L
H
A1
X
L
L
H
H
O0
H
L
H
H
H
OUTPUTS
O1
H
H
L
H
H
O2
H
H
H
L
H
O3
H
H
H
H
L
E
A0
A1
E
A0
A1
E
A0
A1
E
A0
A1
E
O0 A0
A1
E
O1 A0
A1
E
O2 A0
A1
E
O3 A0
A1
O0
O1
O2
O3
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Figure a
GUARANTEED OPERATING RANGES
Symbol
VCC
TA
IOH
IOL
Supply Voltage
Operating Ambient Temperature Range
Output Current — High
Output Current — Low
Parameter
54
74
54
74
54, 74
54
74
Min
4.5
4.75
– 55
0
Typ
5.0
5.0
25
25
Max
5.5
5.25
125
70
– 0.4
4.0
8.0
Unit
V
°C
mA
mA
FAST AND LS TTL DATA
5-236
SN54/74LS139
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
VIH
VIL
VIK
VOH
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH Voltage
54
74
54, 74
VOL
Output LOW Voltage
74
Input HIGH Current
Input LOW Current
Short Circuit Current (Note 1)
Power Supply Current
– 20
0.35
0.5
20
0.1
– 0.4
–100
11
V
µA
mA
mA
mA
mA
2.5
2.7
54
74
– 0.65
3.5
3.5
0.25
0.4
Min
2.0
0.7
0.8
– 1.5
V
V
V
V
Typ
Max
Unit
V
V
Test Conditions
Guaranteed Input HIGH Voltage for
All Inputs
Guaranteed Input LOW Voltage for
All Inputs
VCC = MIN, IIN = – 18 mA
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
IOL = 4.0 mA
IOL = 8.0 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
IIH
IIL
IOS
ICC
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
VCC = MAX, VIN = 0.4 V
VCC = MAX
VCC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(TA = 25°C)
Symbol
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Parameter
Propagation Delay
Address to Output
Propagation Delay
Address to Output
Propagation Delay
Enable to Output
Levels of
Delay
2
2
3
3
2
2
Limits
Min
Typ
13
22
18
25
16
21
Max
20
33
29
38
24
32
Unit
ns
ns
ns
VCC = 5.0 V
CL = 15 pF
Test Conditions
AC WAVEFORMS
V
IN
1.3 V
1.3 V
V
IN
1.3 V
1.3 V
t
PHL
V
OUT
t
PLH
t
PHL
V
OUT
t
PLH
1.3 V
1.3 V
1.3 V
1.3 V
Figure 1
Figure 2
FAST AND LS TTL DATA
5-237
-A-
Case 751B-03 D Suffix
16-Pin Plastic
SO-16
NOTES:
1.
DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2.
3.
CONTROLLING DIMENSION: MILLIMETER.
DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
4.
MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5.
751B 01 IS OBSOLETE, NEW STANDARD
751B 03.
16
9
-B-
1
8
P
8 PL
0.25 (0.010)
M
B
M
R X 45°
G
-T-
D
16 PL
0.25 (0.010)
M
C
SEATING
PLANE
K
T
B
S
M
F
J
A
S
DIM
A
B
C
D
F
G
J
K
M
P
R
MILLIMETERS
MIN
MAX
9.80
3.80
1.35
0.35
0.40
10.00
4.00
1.75
0.49
1.25
INCHES
MIN
MAX
0.386
0.150
0.054
0.014
0.016
0.393
0.157
0.068
0.019
0.049
1.27 BSC
0.19
0.10
0
0.25
0.25
7
0.050 BSC
0.008
0.004
0
0.009
0.009
7
°
°
°
°
5.80
0.25
6.20
0.50
0.229
0.010
0.244
0.019
Case 648-08 N Suffix
16-Pin Plastic
-A-
16
9
NOTES:
1.
DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2.
3.
CONTROLLING DIMENSION: INCH.
DIMENSION L" TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4.
DIMENSION B" DOES NOT INCLUDE MOLD
FLASH.
5.
6.
ROUNDED CORNERS OPTIONAL.
648 01 THRU 07 OBSOLETE, NEW STANDARD
648 08.
B
1
8
F
S
C
-T-
K
SEATING
PLANE
L
H
G
D
16 PL
0.25 (0.010)
M
J
M
T
A
M
DIM
A
B
C
D
F
G
H
J
K
L
M
S
MILLIMETERS
MIN
MAX
18.80
6.35
3.69
0.39
1.02
19.55
6.85
4.44
0.53
1.77
INCHES
MIN
MAX
0.740
0.250
0.145
0.015
0.040
0.770
0.270
0.175
0.021
0.070
2.54 BSC
1.27 BSC
0.21
2.80
7.50
0
0.38
3.30
7.74
10
0.100 BSC
0.050 BSC
0.008
0.110
0.295
0
0.015
0.130
0.305
10
°
°
°
°
0.51
1.01
0.020
0.040
-A-
16
9
Case 620-09 J Suffix
16-Pin Ceramic Dual In-Line
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
-B-
1
8
3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
4. DIM F MAY NARROW TO 0.76 (0.030) WHERE
THE LEAD ENTERS THE CERAMIC BODY.
C
L
5. 620 01 THRU 08 OBSOLETE, NEW STANDARD
620 09.
-T-
SEATING
PLANE
K
E
F
D
16 PL
0.25 (0.010)
M
N
G
T
A
S
M
J
16 PL
0.25 (0.010)
M
T
B
S
DIM
A
B
C
D
E
F
G
J
K
L
M
N
MILLIMETERS
MIN
MAX
19.05
6.10
19.55
7.36
4.19
0.39
0.53
INCHES
MIN
MAX
0.750
0.240
0.770
0.290
0.165
0.015
0.021
1.27 BSC
1.40
1.77
0.050 BSC
0.055
0.070
2.54 BSC
0.23
0.27
5.08
7.62 BSC
0
0.100 BSC
0.009
0.011
0.200
0.300 BSC
0
°
15
°
°
15
°
0.39
0.88
0.015
0.035
FAST AND LS TTL DATA
5-238
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
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against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
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