74ALS139 [NXP]
Dual 1-of-4 decoder/demultiplexer; 1 -的-4双解码器/多路解复用器型号: | 74ALS139 |
厂家: | NXP |
描述: | Dual 1-of-4 decoder/demultiplexer |
文件: | 总8页 (文件大小:101K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74ALS139
Dual 1-of-4 decoder/demultiplexer
Product specification
IC05 Data Handbook
1991 Feb 08
Philips
Semiconductors
Philips Semiconductors
Product specification
Dual 1-of-4 decoder/demultiplexer
74ALS139
FEATURES
PIN CONFIGURATION
• Demultiplexing capability
Ea
A0a
A1a
Q0a
Q1a
1
2
3
4
5
16
V
• Two independent 1-of-4 decoders
• Multi-function capability
CC
15 Eb
14 A0b
13 A1b
12 Q0b
11 Q1b
10 Q2b
DESCRIPTION
The 74ALS139 is a dual 1-of-4 decoder/demultiplexer. This device
has two independent decoders, each accepting two binary weighted
Q2a
Q3a
6
7
8
inputs (A , A ) and providing four mutually exclusive active-Low
0n
1n
outputs (Q0n–Q3n). Each decoder has an active-Low enable (E).
When E is High, every output is forced High. The enable can be
used as the data input for a 1-of-4 demultiplexer application.
GND
9
Q3b
SF00129
TYPICAL
TYPICAL
PROPAGATION DELAY
SUPPLY CURRENT
(TOTAL)
TYPE
74ALS139
6.0ns
4mA
ORDERING INFORMATION
ORDER CODE
DRAWING
NUMBER
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V ±10%,
T
amb
= 0°C to +70°C
16-pin plastic DIP
16-pin plastic SO
74ALS139N
74ALS139D
SOT38-4
SOT109-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
74ALS (U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
PINS
DESCRIPTION
A0n, A1n
Ea, Eb
Address inputs
1.0/1.0
1.0/1.0
20/80
20µA/0.1mA
20µA/0.1mA
0.4mA/8mA
Enable inputs (active-Low)
Data outputs
Q0n, Q1n
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
LOGIC SYMBOL
IEC/IEEE SYMBOL
1
2
3
15
14
13
DEMUX
2
3
4
5
0
1
2
0
1
0
G
3
Ea
A0a A1a
Eb
A0b A1b
6
DECODER a
DECODER b
1
7
3
14
13
12
11
10
9
Q0a Q1a Q2a Q3a
Q0b Q1b Q2b Q3b
4
5
6
12
11
10
7
9
15
V
= Pin 16
CC
GND = Pin 8
SF00130
SF00131
2
1991 Feb 08
853–1426 01670
Philips Semiconductors
Product specification
Dual 1-of-4 decoder/demultiplexer
74ALS139
LOGIC DIAGRAM
FUNCTION TABLE
INPUTS
OUTPUTS
Q1 Q2
Ea
A0a A1a
Eb
A0b A1b
14 13
1
2
3
15
E
H
L
L
L
L
A0
X
A1
X
Q0
H
Q3
H
H
H
L
L
L
H
L
H
H
L
H
H
L
L
H
H
H
H
H
H
H
H
H
H
H
L
H
L
X
=
=
=
High voltage level
Low voltage level
Don’t care
4
Q0a
5
Q1a
6
7
12
Q0b
11
Q1b
10
9
Q2a Q3a
Q2b Q3b
V
= Pin 16
CC
GND = Pin 8
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
PARAMETER
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
UNIT
V
V
I
Supply voltage
Input voltage
Input current
CC
V
IN
V
mA
V
IN
V
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature range
–0.5 to V
16
OUT
OUT
CC
I
mA
°C
°C
T
amb
0 to +70
T
stg
–65 to +150
RECOMMENDED OPERATING CONDITIONS
LIMITS
NOM
5.0
SYMBOL
PARAMETER
UNIT
MIN
4.5
MAX
V
CC
Supply voltage
5.5
V
V
V
IH
High-level input voltage
Low-level input voltage
Input clamp current
2.0
V
IL
0.8
–18
–0.4
8
V
I
Ik
mA
mA
mA
°C
I
High-level output current
Low-level output current
Operating free-air temperature range
OH
I
OL
T
amb
0
+70
3
1991 Feb 08
Philips Semiconductors
Product specification
Dual 1-of-4 decoder/demultiplexer
74ALS139
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
1
SYMBOL
PARAMETER
High-level output voltage
Low-level output voltage
TEST CONDITIONS
±10%, V = MAX, V = MIN, I = –0.4mA
UNIT
2
MIN
– 2
TYP
MAX
V
OH
V
V
CC
V
V
CC
IL
IH
OH
I
= 4mA
= 8mA
0.25
0.35
0.40
0.50
–1.5
0.1
OL
OL
V
V
= MIN, V = MAX,
IL
= MIN
CC
IH
V
OL
I
V
V
IK
Input clamp voltage
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= MIN, I = I
IK
–0.73
V
I
I
I
Input current at maximum input voltage
High-level input current
= MAX, V = 7.0V
mA
µA
mA
mA
mA
I
I
IH
= MAX, V = 2.7V
20
I
I
IL
Low-level input current
= MAX, V = 0.5V
–0.1
–112
7.0
I
3
I
O
Output current
= MAX, V = 2.25V
-30
O
I
Supply current (total)
= MAX
4.0
CC
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 = 5V, T = 25°C.
CC
amb
3. The output conditions have been chosen to produce a current that closely approximate one half of the true short-circuit output current, I
.
OS
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
SYMBOL
PARAMETER
TEST CONDITION
UNIT
C = 50pF, R = 500Ω
L
L
MIN
MAX
t
t
Propagation delay
An to Qn
3.0
3.0
10.0
12.0
PLH
PHL
Waveform 1, 2
Waveform 2
ns
ns
t
t
Propagation delay
En to Qn
3.0
3.0
8.0
8.0
PLH
PHL
AC WAVEFORMS
For all waveforms, V = 1.3V.
M
An
V
V
M
An, En
V
V
M
M
M
t
t
t
t
PLH
PHL
PLH
PHL
V
V
V
V
M
M
M
M
Qn
Qn
SF00133
SF00134
Waveform 1. Propagation Delay for Inverting Outputs
Waveform 2. Propagation Delay for Non-inverting Outputs
4
1991 Feb 08
Philips Semiconductors
Product specification
Dual 1-of-4 decoder/demultiplexer
74ALS139
TEST CIRCUIT AND WAVEFORMS
t
w
AMP (V)
90%
V
CC
90%
NEGATIVE
PULSE
V
V
M
M
10%
10%
V
V
OUT
IN
0.3V
PULSE
GENERATOR
D.U.T.
t
t )
f
t
t )
THL ( f
TLH ( r
R
C
R
L
T
L
t
t )
t
t )
TLH ( r
THL ( f
AMP (V)
90%
M
90%
POSITIVE
PULSE
V
V
M
Test Circuit for Totem-pole Outputs
10%
10%
0.3V
t
w
Input Pulse Definition
DEFINITIONS:
R
L
C
L
R
T
=
=
=
Load resistor;
INPUT PULSE REQUIREMENTS
V
see AC electrical characteristics for value.
Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
Termination resistance should be equal to Z
pulse generators.
Family
Rep.Rate
t
w
t
t
THL
Amplitude
M
TLH
2.0ns
2.0ns
of
74ALS
3.5V
1.3V
1MHz
500ns
OUT
SC00005
5
1991 Feb 08
Philips Semiconductors
Product specification
Dual 1-of-4 decoder/demultiplexer
74ALS139
DIP16: plastic dual in-line package; 16 leads (300 mil)
SOT38-4
6
1991 Feb 08
Philips Semiconductors
Product specification
Dual 1-of-4 decoder/demultiplexer
74ALS139
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
7
1991 Feb 08
Philips Semiconductors
Product specification
Dual 1-of-4 decoder/demultiplexer
74ALS139
DEFINITIONS
Data Sheet Identification
Product Status
Definition
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
Objective Specification
Formative or in Design
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.
Preliminary Specification
Product Specification
Preproduction Product
Full Production
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.
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. PhilipsSemiconductorsmakesnorepresentationorwarrantythatsuchapplicationswillbesuitableforthespecifiedusewithoutfurthertesting
or modification.
LIFE SUPPORT APPLICATIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
orsystemswheremalfunctionofaPhilipsSemiconductorsandPhilipsElectronicsNorthAmericaCorporationProductcanreasonablybeexpected
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
Copyright Philips Electronics North America Corporation 1997
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Philips
Semiconductors
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