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INTEGRATED CIRCUITS
74ALS139
Dual 1-of-4 decoder/demultiplexer
Product specification 1991 Feb 08
IC05 Data Handbook
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Philips Semiconductors Product specification
74ALS139Dual 1-of-4 decoder/demultiplexer
FEA TURES
•Demultiplexing capability
•Two independent 1-of-4 decoders
•Multi-function capability
DESCRIPTION
The 74ALS139 is a dual 1-of-4 decoder/demultiplexer. This device
has two independent decoders, each accepting two binary weighted
inputs (A
outputs (Q
When E
used as the data input for a 1-of-4 demultiplexer application.
ORDERING INFORMATION
, A1n) and providing four mutually exclusive active-Low
0n
0n–Q3n). Each decoder has an active-Low enable (E).
is High, every output is forced High. The enable can be
TYPE
TYPICAL
PROPAGATION DELAY
TYPICAL
SUPPLY CURRENT
(TOTAL)
74ALS139 6.0ns 4mA
ORDER CODE
DESCRIPTION COMMERCIAL RANGE
V
= 5V ±10%,
CC
T
= 0°C to +70°C
amb
DRAWING
NUMBER
16-pin plastic DIP 74ALS139N SOT38-4
16-pin plastic SO 74ALS139D SOT109-1
PIN CONFIGURATION
E
1
a
2
A0a
A1a
3
Q
4
0a
5
Q
1a
6
2a
Q
3a
Q
16
V
15
E
A0b
14
13
A1b
12
Q0b
11
Q1b
107
Q2b
98GND Q3b
CC
b
SF00129
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS DESCRIPTION
A0n, A1n Address inputs 1.0/1.0 20µA/0.1mA
Ea, Eb Enable inputs (active-Low) 1.0/1.0 20µA/0.1mA
Q0n, Q1n Data outputs 20/80 0.4mA/8mA
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
LOGIC SYMBOL
123
DECODER a DECODER b
Q0a Q1a Q2a
456
V
= Pin 16
CC
GND = Pin 8
15 14 13
A0a A1aEa
Q3a
7
Q0b Q1b Q2b
12 11 10
A0b A1bEb
Q3b
9
SF00130
IEC/IEEE SYMBOL
74ALS (U.L.)
HIGH/LOW
2
3
1
14
13
15
0
1
DEMUX
0
G
3
0
1
2
3
LOAD VALUE
HIGH/LOW
4
5
6
7
12
11
10
9
SF00131
1991 Feb 08 853–1426 01670
2
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Philips Semiconductors Product specification
SYMBOL
PARAMETER
UNIT
74ALS139Dual 1-of-4 decoder/demultiplexer
LOGIC DIAGRAM
E
a A0a A1a
123
E
b A0b A1b
15 14 13
FUNCTION TABLE
INPUTS OUTPUTS
E A0 A1 Q0 Q1 Q2 Q3
H X X H H H H
L L LLHHH
LHLHLHH
LLHHHLH
LHHHHHL
H = High voltage level
L = Low voltage level
X = Don’t care
4567
0a Q1a Q2a Q3a
Q
V
= Pin 16
CC
GND = Pin 8
12 11 10 9
0b Q1b Q2b Q3b
Q
SF00132
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
V
CC
V
IN
I
IN
V
OUT
I
OUT
T
amb
T
stg
Supply voltage –0.5 to +7.0 V
Input voltage –0.5 to +7.0 V
Input current –30 to +5 mA
Voltage applied to output in High output state –0.5 to V
Current applied to output in Low output state 16 mA
Operating free-air temperature range 0 to +70 °C
Storage temperature range –65 to +150 °C
PARAMETER RATING UNIT
CC
V
RECOMMENDED OPERATING CONDITIONS
V
V
V
I
I
OH
I
OL
T
amb
1991 Feb 08
Supply voltage 4.5 5.0 5.5 V
CC
High-level input voltage 2.0 V
IH
Low-level input voltage 0.8 V
IL
Input clamp current –18 mA
Ik
High-level output current –0.4 mA
Low-level output current 8 mA
Operating free-air temperature range 0 +70 °C
LIMITS
MIN NOM MAX
3
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Philips Semiconductors Product specification
SYMBOL
PARAMETER
TEST CONDITIONS
1
UNIT
VOLLow-level output voltage
CC
,
IL
,
74ALS139Dual 1-of-4 decoder/demultiplexer
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
MIN TYP2MAX
V
V
I
I
High-level output voltage VCC±10%, VIL = MAX, VIH = MIN, IOH = –0.4mA V
OH
I
= 4mA 0.25 0.40 V
p
Input clamp voltage VCC = MIN, II = I
IK
I
Input current at maximum input voltage VCC = MAX, VI = 7.0V 0.1 mA
I
High-level input current VCC = MAX, VI = 2.7V 20 µA
IH
I
Low-level input current VCC = MAX, VI = 0.5V –0.1 mA
IL
I
Output current
O
Supply current (total) VCC = MAX 4.0 7.0 mA
CC
3
VCC = MIN, VIL = MAX,
VIH = MIN
IK
VCC = MAX, VO = 2.25V -30 –112 mA
OL
I
= 8mA 0.35 0.50 V
OL
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V
3. The output conditions have been chosen to produce a current that closely approximate one half of the true short-circuit output current, I
CC
= 5V, T
amb
= 25°C.
– 2 V
CC
–0.73 –1.5 V
OS
.
AC ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER TEST CONDITION
t
t
t
t
PLH
PHL
PLH
PHL
Propagation delay
An
to Qn
Propagation delay
E
n to Qn
Waveform 1, 2
Waveform 2
AC WAVEFORMS
For all waveforms, VM = 1.3V.
An
Qn
Waveform 1. Propagation Delay for Inverting Outputs
V
M
t
PHL
n
V
M
t
PLH
V
M
V
M
SF00133
An, E
Qn
Waveform 2. Propagation Delay for Non-inverting Outputs
LIMITS
T
= 0°C to +70°C
amb
V
= +5.0V ± 10%
CC
C
= 50pF, RL = 500Ω
L
MIN MAX
3.0
3.0
3.0
3.0
V
M
t
PHL
V
M
V
M
t
PLH
10.0
12.0
8.0
8.0
V
M
UNIT
ns
ns
SF00134
1991 Feb 08
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Philips Semiconductors Product specification
74ALS139Dual 1-of-4 decoder/demultiplexer
TEST CIRCUIT AND WAVEFORMS
V
CC
PULSE
GENERATOR
V
IN
R
T
D.U.T.
V
OUT
C
R
L
L
Test Circuit for Totem-pole Outputs
DEFINITIONS:
R
= Load resistor;
L
see AC electrical characteristics for value.
CL= Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
R
= Termination resistance should be equal to Z
T
pulse generators.
OUT
of
NEGATIVE
PULSE
POSITIVE
PULSE
90%
10%
Family
74ALS
V
M
10%
t
THL (tf
t
TLH (tr
90%
V
M
Input Pulse Definition
Amplitude
3.5V
t
w
V
10%
)
f
)
t
)
TLH (tr
t
)
THL (tf
90%
t
w
90%
M
V
M
10%
INPUT PULSE REQUIREMENTS
V
M
1.3V
Rep.Rate
1MHz
500ns
t
w
t
TLHtTHL
2.0ns 2.0ns
AMP (V)
0.3V
AMP (V)
0.3V
SC00005
1991 Feb 08
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Philips Semiconductors Product specification
74ALS139Dual 1-of-4 decoder/demultiplexer
DIP16: plastic dual in-line package; 16 leads (300 mil) SOT38-4
1991 Feb 08
6
Page 7
Philips Semiconductors Product specification
74ALS139Dual 1-of-4 decoder/demultiplexer
SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1
1991 Feb 08
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Philips Semiconductors Product specification
74ALS139Dual 1-of-4 decoder/demultiplexer
DEFINITIONS
Data Sheet Identification Product Status Definition
Objective Specification
Preliminary Specification
Product Specification
Formative or in Design
Preproduction Product
Full Production
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing
or modification.
LIFE SUPPORT APPLICA TIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Copyright Philips Electronics North America Corporation 1997
All rights reserved. Printed in U.S.A.
1991 Feb 08
8
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