Page 1
INTEGRATED CIRCUITS
74ALS151
8-input multiplexer
Product specification 1991 Feb 08
IC05 Data Handbook
Page 2
Philips Semiconductors Product specification
74ALS1518-input multiplexer
FEA TURES
PIN CONFIGURATION
•8-to-1 multiplexing
1
•On chip decoding
•Multi-function capability
•Complementary outputs
•See 74ALS251 for 3-State version
DESCRIPTION
The 74ALS151 is a logic implementation of a single 8-position
switch with the switch position controlled by the state of three select
(S0, S1, S2) inputs. True (Y) and complementary (Y
both provided.
The enable (E
the Y
output is High regardless of all other inputs.
TYPE
) is active-Low. When E is High, Y output is Low and
TYPICAL
PROPAGATION DELAY
74ALS151 8.0ns 8.0mA
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS DESCRIPTION
I0 – I7 Data inputs 1.0/1.0 20µA/0.1mA
S0 – S2 Select inputs 1.0/1.0 20µA/0.1mA
E Enable input (active-Low) 1.0/1.0 20µA/0.1mA
Y, Y Data outputs 130/240 2.6mA/24mA
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
) outputs are
TYPICAL
SUPPLY CURRENT
(TOTAL)
ORDERING INFORMA TION
DESCRIPTION COMMERCIAL RANGE
16-pin plastic DIP 74ALS151N SOT38-4
16-pin plastic SO 74ALS151D SOT109-1
I3
2
I2
I1
3
I0
4
Y
5
6
Y
E
74ALS (U.L.)
HIGH/LOW
ORDER CODE
V
= 5V ±10%,
CC
T
= 0°C to +70°C
amb
16
V
CC
15
I4
14
I5
13
I6
12
I7
11
S0
107
S1
98GND S2
LOAD VALUE
HIGH/LOW
SF00742
DRAWING
NUMBER
LOGIC SYMBOL
4 12131415
I0 I1 I2 I3 I4 I5 I6 I7
11
10
V
= Pin 16
CC
GND = Pin 8
9
7
S0
S1
S2
E
1991 Feb 08 853–1022 01670
123
YY
65
SF00743
IEC/IEEE SYMBOL
2
7
11
10
9
4
3
2
1
15
14
13
12
EN
MUX
0
0
G
7
2
5
6
SF00744
Page 3
Philips Semiconductors Product specification
74ALS1518-input multiplexer
LOGIC DIAGRAM
I0 I1 I2 I3 I4 I5 I6 I7
9
S2
10
S1
11
S0
7
E
4 3 2 1 15 14 13 12
= Pin 16
V
CC
GND = Pin 8
FUNCTION TABLE
INPUTS OUTPUTS
S2 S1 S0 E Y Y
X X X H L H
L L L L I0 I0
L L H L I1 I1
L H L L I2 I2
L H H L I3 I3
H L L L I4 I4
H L H L I5 I5
H H L L I6 I6
H H H L I7 I7
H = High voltage level
L = Low voltage level
X = Don’t care
56
YY
SF00741
1991 Feb 08
3
Page 4
Philips Semiconductors Product specification
SYMBOL
PARAMETER
TEST CONDITIONS
1
UNIT
VOHHigh-level output voltage
CC
,
IL
,
VOLLow-level output voltage
CC
,
IL
,
74ALS1518-input multiplexer
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
V
I
T
V
OUT
T
Supply voltage –0.5 to +7.0 V
CC
Input voltage –0.5 to +7.0 V
IN
I
Input current –30 to +5 mA
IN
Voltage applied to output in High output state –0.5 to V
OUT
Current applied to output in Low output state 48 mA
Operating free-air temperature range 0 to +70 °C
amb
Storage temperature range –65 to +150 °C
stg
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER LIMITS UNIT
V
V
V
I
I
OH
I
T
amb
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 –2.6 mA
Low-level output current
OL
Operating free air temperature range 0 +70 °C
PARAMETER RATING UNIT
CC
V
MIN NOM MAX
24 mA
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
MIN TYP2MAX
p
p
V
I
I
IH
I
IL
I
O
I
CC
Input clamp voltage VCC = MIN, II = I
IK
Input current at minimum input voltage VCC = MAX, VI = 7.0V 0.1 mA
I
High-level input current VCC = MAX, VI = 2.7V 20
Low-level input current VCC = MAX, VI = 0.4V –0.1 mA
Output current
3
Supply current (total) VCC = MAX 8.0 12 mA
VCC = ±10%, VIL = MAX,
VIH = MIN
VCC = MIN, VIL = MAX,
VIH = MIN
IK
VCC = MAX, VO = 2.25V –30 –112 mA
IOH = –0.4mA V
IOH = MAX 2.4 3.2 V
I
= 12mA 0.25 0.40 V
OL
I
= 24mA 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 approximates one half of the true short-circuit output current, I
= 5V, T
CC
amb
= 25°C.
– 2 V
CC
–0.73 –1.5 V
µA
OS
.
1991 Feb 08
4
Page 5
Philips Semiconductors Product specification
74ALS1518-input multiplexer
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
= 0°C to +70°C
amb
V
SYMBOL PARAMETER TEST CONDITION
t
t
t
t
t
t
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
Propagation delay
In to Y
Propagation delay
In to Y
Propagation delay
Sn to Y
Propagation delay
Sn to Y
Propagation delay
E
to Y
Propagation delay
E
to Y
Waveform 1
Waveform 2
Waveform 1, 2
Waveform 1, 2
Waveform 1
Waveform 1
= +5.0V ± 10%
CC
C
= 50pF, RL = 500Ω
L
MIN MAX
3.0
5.0
3.0
5.0
5.0
7.0
5.0
5.0
4.0
4.0
4.0
5.0
12.0
12.0
15.0
15.0
15.0
16.0
15.0
16.0
12.0
12.0
12.0
14.0
UNIT
ns
ns
ns
ns
ns
ns
AC WAVEFORMS
For all waveforms, VM = 1.3V.
V
IN
V
OUT
V
M
t
PHL
V
M
t
PLH
V
M
V
M
Waveform 1. Propagation Delay for Inverting Output
TEST CIRCUIT AND WAVEFORMS
V
CC
V
PULSE
GENERATOR
IN
R
T
Test Circuit for Totem-pole Outputs
D.U.T.
V
OUT
C
L
V
SF00093
IN
V
OUT
V
M
t
PLH
V
M
t
PHL
V
M
V
M
SF00092
Waveform 2. Propagation Delay for Non-inverting Output
t
NEGATIVE
PULSE
R
L
POSITIVE
PULSE
90%
10%
V
M
10%
t
THL (tf
t
TLH (tr
90%
V
M
w
V
M
10%
)
f
)
t
)
TLH (tr
t
)
THL (tf
90%
V
M
t
w
90%
10%
AMP (V)
0.3V
AMP (V)
0.3V
DEFINITIONS:
R
= Load resistor;
L
see AC electrical characteristics for value.
= Load capacitance includes jig and probe capacitance;
C
L
see AC electrical characteristics for value.
R
= Termination resistance should be equal to Z
T
pulse generators.
1991 Feb 08
OUT
of
5
Family
74ALS
Input Pulse Definition
Amplitude
3.5V
INPUT PULSE REQUIREMENTS
V
M
1.3V
Rep.Rate
1MHz
500ns
t
w
t
TLHtTHL
2.0ns 2.0ns
SC00005
Page 6
Philips Semiconductors Product specification
74ALS1518-input multiplexer
DIP16: plastic dual in-line package; 16 leads (300 mil) SOT38-4
1991 Feb 08
6
Page 7
Philips Semiconductors Product specification
74ALS1518-input multiplexer
SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1
1991 Feb 08
7
Page 8
Philips Semiconductors Product specification
74ALS1518-input multiplexer
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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