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INTEGRATED CIRCUITS
74LV157
Quad 2-input multiplexer
Product specification
Supersedes data of 1997 May 15
IC24 Data Handbook
1998 Apr 30
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Philips Semiconductors Product specification
74L V157Quad 2-input multiplexer
FEA TURES
•Optimized for low voltage applications: 1.0 to 3.6 V
•Accepts TTL input levels between V
•Typical V
T
amb
•Typical V
T
amb
(output ground bounce) < 0.8 V at V
OLP
= 25°C
(output VOH undershoot) > 2 V at V
OHV
= 25°C
= 2.7 V and V
CC
CC
CC
= 3.6 V
CC
= 3.3 V,
= 3.3 V,
•Output capability: standard
•I
category: MSI
CC
DESCRIPTION
The 74LV157 is a low-voltage CMOS device and is pin and function
compatible with 74HC/HCT157.
The 74LV157 is a quad 2-input multiplexer which selects 4 bits of data
from two sources under the control of a common data select input (S).
QUICK REFERENCE DATA
GND = 0 V; T
SYMBOL
t
NOTES:
1. C
is used to determine the dynamic power dissipation (PD in µW)
PD
= CPD × V
P
D
f
= input frequency in MHz; CL = output load capacitance in pF;
i
= output frequency in MHz; VCC = supply voltage in V;
f
o
(C
L
= 25°C; tr = tf≤ 2.5 ns
amb
PHL/tPLH
C
I
C
PD
2
× fi (CL × V
CC
2
× V
× fo) = sum of the outputs.
CC
PARAMETER CONDITIONS TYPICAL UNIT
Propagation delay
nl0, nl1, to nY
E to nY
S to nY
Input capacitance 3.5 pF
Power dissipation capacitance per gate VI = GND to V
2
× fo) where:
CC
The four outputs present the selected data in the true (non-inverted)
form. The enable input (E) is active LOW. When E is HIGH, all of the
outputs (1Y to 4Y) are forced LOW regardless of all other input
conditions.
Moving the data from two groups of registers to four common output
buses is a common use of the 74LV157. The state of the common
data select input (S) determines the particular register from which
the data comes. It can also be used as function generator.
The device is useful for implementing highly irregular logic by
generating any four of the 16 different functions of two variables with
one variable common.
The 74LV157 is the logic implementation of a 4-pole, 2-position
switch, where the position of the switch is determined by the logic
levels applied to S.
CL = 15 pF;
VCC = 3.3 V
10
11
12
CC
1
70 pF
ns
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA PKG. DWG. #
16-Pin Plastic DIL –40°C to +125°C 74LV157 N 74LV157 N SOT38-4
16-Pin Plastic SO –40°C to +125°C 74LV157 D 74LV157 D SOT109-1
16-Pin Plastic SSOP Type II –40°C to +125°C 74LV157 DB 74LV157 DB SOT338-1
16-Pin Plastic TSSOP Type I –40°C to +125°C 74LV157 PW 74LV157PW DH SOT403-1
1998 Apr 30 853–1920 19318
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Philips Semiconductors Product specification
Quad 2-input multiplexer
PIN CONFIGURATION
1
S
2
1I
0
3
1I
1
4
1Y
5
2I
0
6
2I
1
7
2Y
GND
8
PIN DESCRIPTION
PIN
NUMBER
1 S Common data select input
2, 5, 11, 14 1l0 to 4l
3, 6, 10, 13 1l1 to 4l
4, 7, 9, 12 1Y to 4Y Multiplexer outputs
8 GND Ground (0 V)
15 E Enable inputs (active LOW)
16 V
SYMBOL FUNCTION
Data inputs from source 0
0
Data inputs from source 1
1
CC
Positive supply voltage
16
15
14
13
12
11
10
9
SV00563
V
CC
E
4I
0
4I
1
4Y
3I
0
3I
1
3Y
LOGIC SYMBOL
35
2
1I
1I
0
1
1
15
S
E
FUNCTIONAL DIAGRAM
2
1I
0
3
1I
1
5
2I
0
6
2I
1
11
3I
10
3I
SELECTOR
0
1
74LV157
13
1411
3I
0
1
3Y
9
MULTIPLEXER
OUTPUTS
10
4I
3I
4Y
12
4I
0
1
1
SV00564
1Y
2Y
3Y
4
7
9
6
2I
2I
0
2Y
1Y
7
4
LOGIC SYMBOL (IEEE/IEC)
1
15
2
3
5
6
11
10
14
13
G1
EN
MUX
1
1
12
SV00565
14
4I
0
13
4I
1
S
115
4
7
9
E
4Y
SV00566
12
1998 Apr 30
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Philips Semiconductors Product specification
Quad 2-input multiplexer
74LV157
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT
V
V
V
T
amb
tr, t
NOTE:
1. The LV is guaranteed to function down to V
ABSOLUTE MAXIMUM RATINGS
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0 V).
SYMBOL
V
I
I
I
DC supply voltage See Note 1 1.0 3.3 3.6 V
CC
Input voltage 0 – V
I
Output voltage 0 – V
O
Operating ambient temperature range in free air
Input rise and fall times
f
CC
See DC and AC
characteristics
VCC = 1.0V to 2.0V
VCC = 2.0V to 2.7V
V
= 2.7V to 3.6V
CC
= 1.0V (input levels GND or VCC); DC characteristics are guaranteed from VCC = 1.2V to VCC = 3.6V.
–40
–40
–
–
–
–
–
–
1, 2
PARAMETER CONDITIONS RATING UNIT
CC
DC supply voltage –0.5 to +4.6 V
DC input diode current VI < –0.5 or VI > VCC + 0.5V 20 mA
IK
DC output diode current VO < –0.5 or VO > VCC + 0.5V 50 mA
OK
DC output source or sink current
O
– standard outputs
–0.5V < VO < VCC + 0.5V
25
CC
CC
+85
+125
500
200
100
ns/V
V
V
°C
mA
I
I
P
GND
T
TOT
stg
DC VCC or GND current for types with
,
– standard outputs 50
CC
Storage temperature range –65 to +150 °C
Power dissipation per package
– plastic DIL
– plastic mini-pack (SO)
– plastic shrink mini-pack (SSOP and TSSOP)
for temperature range: –40 to +125°C
above +70°C derate linearly with 12 mW/K
above +70°C derate linearly with 8 mW/K
above +60°C derate linearly with 5.5 mW/K
750
500
400
mA
mW
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 Apr 30
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Philips Semiconductors Product specification
voltage
voltage
V
V
V
V
Quad 2-input multiplexer
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. V oltages are referenced to GND (ground = 0 V).
SYMBOL PARAMETER TEST CONDITIONS
VCC = 1.2 V 0.9 0.9
IH
HIGH level Input
V
VCC = 2.0 V 1.4 1.4
VCC = 2.7 to 3.6 V 2.0 2.0
VCC = 1.2 V 0.3 0.3
IL
LOW level Input
V
VCC = 2.0 V 0.6 0.6
VCC = 2.7 to 3.6 V 0.8 0.8
HIGH level output
OH
voltage; all outputs
VCC = 1.2 V; VI = VIH or V
VCC = 2.0 V; VI = VIH or V
VCC = 2.7 V; VI = VIH or V
VCC = 3.0 V; VI = VIH or V
IL;
IL;
IL;
IL;
HIGH level output
OH
voltage;
STANDARD
VCC = 3.0 V; VI = VIH or V
IL;
V
outputs
LOW level output
OL
voltage; all outputs
VCC = 1.2 V; VI = VIH or V
VCC = 2.0 V; VI = VIH or V
VCC = 2.7 V; VI = VIH or V
VCC = 3.0 V; VI = VIH or V
IL;
IL;
IL;
IL;
LOW level output
OL
voltage;
STANDARD
VCC = 3.0 V; VI = VIH or V
IL;
V
outputs
Input leakage
I
I
current
CC
Quiescent supply
current; MSI
I
VCC = 3.6 V; VI = VCC or GND 1.0 1.0 µA
VCC = 3.6 V; VI = VCC or GND; IO = 0 20.0 160 µA
Additional
CC
quiescent supply
current per input
VCC = 2.7 V to 3.6 V; VI = VCC – 0.6 V 500 850 µA
∆I
NOTE:
1. All typical values are measured at T
amb
= 25°C.
–IO = 100µA 1.2
–IO = 100µA 1.8 2.0 1.8
–IO = 100µA 2.5 2.7 2.5
–IO = 100µA 2.8 3.0 2.8
–IO = 6mA 2.40 2.82 2.20 V
IO = 100µA 0
IO = 100µA 0 0.2 0.2
IO = 100µA 0 0.2 0.2
IO = 100µA 0 0.2 0.2
IO = 6mA 0.25 0.40 0.50 V
-40°C to +85°C -40°C to +125°C
MIN TYP
LIMITS
1
MAX MIN MAX
74LV157
UNIT
V
V
1998 Apr 30
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Philips Semiconductors Product specification
CONDITION
t
nl
nY;
Figures 1, 2
ns
1
t
gy
Figures 1, 2
ns
t
gy
Figures 1, 2
ns
Quad 2-input multiplexer
AC CHARACTERISTICS
GND = 0V; tr = tf = 2.5ns; CL = 50pF; RL = KΩ
SYMBOL PARAMETER WAVEFORM
Propagation delay
to
PHL/tPLH
PHL/tPLH
PHL/tPLH
NOTES:
1. Unless otherwise stated, all typical values are measured at T
2. Typical values are measured at V
;
0
nl
to nY
Propagation delay
E to nY
Propagation delay
S to nY
= 3.3 V.
CC
LIMITS
–40 to +85 °C –40 to +125 °C
VCC(V) MIN TYP1MAX MIN MAX
1.2 65
2.0 22 43 51
2.7 16 31 38
3.0 to 3.6 12
2
25 30
1.2 70
2.0 24 44 54
2.7 18 33 40
3.0 to 3.6 13
2
26 32
1.2 75
2.0 26 49 60
2.7 19 36 44
3.0 to 3.6 14
= 25°C
amb
2
29 35
74LV157
UNIT
AC WAVEFORMS
VM = 1.5 V at VCC ≥ 2.7 V;
= 0.5 V × VCC at VCC < 2.7 V .
V
M
V
and VOH are the typical output voltage drop that occur with the
OL
output load.
V
CC
E INPUT
GND
t
V
OH
nY OUTPUT
V
OL
Figure 1. Enable input (E) to output (nY)
propagation delays and output transition times.
V
CC
nI0, nI1, S
INPUT
GND
t
V
OH
nY OUTPUT
V
OL
PHL
PHL
V
M
V
M
V
M
V
M
t
PLH
SV00567
t
PLH
SV00568
TEST CIRCUIT
V
V
PULSE
GENERATOR
DEFINITIONS
RL = Load resistor
C
= Load capacitance includes jig and probe capacitance
L
RT = Termination resistance should be equal to Z
TEST
t
PLH/tPHL
Figure 3. Load circuitry for switching times.
I
D.U.T.
R
T
Test Circuit for switching times
V
CC
< 2.7V V
2.7–3.6V 2.7V
CC
V
O
50pF
C
L
of pulse generators.
OUT
V
I
CC
RL = 1k
SV00901
Figure 2. Data inputs (nln) and common data select input (S) to
1998 Apr 30
output (nY) propagation delays.
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Philips Semiconductors Product specification
Quad 2-input multiplexer
DIP16: plastic dual in-line package; 16 leads (300 mil) SOT38-4
74LV157
1998 Apr 30
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Philips Semiconductors Product specification
Quad 2-input multiplexer
SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1
74LV157
1998 Apr 30
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Philips Semiconductors Product specification
Quad 2-input multiplexer
SSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm SOT338-1
74LV157
1998 Apr 30
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Philips Semiconductors Product specification
Quad 2-input multiplexer
TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1
74LV157
1998 Apr 30
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Philips Semiconductors Product specification
Quad 2-input multiplexer
74LV157
NOTES
1998 Apr 30
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Philips Semiconductors Product specification
Quad 2-input multiplexer
74LV157
DEFINITIONS
Data Sheet Identification Product Status Definition
Objective Specification
Preliminary Specification
Product Specification
Formative or in Design
Preproduction Product
Full Production
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.
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
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code Date of release: 05-96
Document order number: 9397-750-04427
1998 Apr 30
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