74LVC157A
Rev. 9 — 19 March 2020
Quad 2-input multiplexer
Product data sheet
1. General description
The 74LVC157A is a quad 2-input multiplexer which select four bits of data from two sources under
the control of a common select input (S). The four outputs present the selected data in the true
(non-inverted) form. The enable input (E) is active LOW. When pin E is HIGH, all of the outputs (1Y
to 4Y) are forced LOW regardless of all the other input conditions. Moving the data from two groups
of registers to four common output buses is a common use of the 74LVC157A. 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.
It is useful for implementing highly irregular logic by generating any 4 of the 16 different functions of
two variables with one variable common.
The device 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 pin S.
Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices
as translators in mixed 3.3 V and 5 V applications.
2. Features and benefits
•
•
•
•
•
•
5 V tolerant inputs for interfacing with 5 V logic
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low power consumption
Direct interface with TTL levels
Complies with JEDEC standard:
•
JESD8-7A (1.65 V to 1.95 V)
•
JESD8-5A (2.3 V to 2.7 V)
•
JESD8-C/JESD36 (2.7 V to 3.6 V)
ESD protection:
•
HBM JESD22-A114F exceeds 2000 V
•
MM JESD22-A115-B exceeds 200 V
•
CDM JESD22-C101E exceeds 1000 V
Specified from -40 °C to +85 °C and -40 °C to +125 °C
•
•
Nexperia
74LVC157A
Quad 2-input multiplexer
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range Name
74LVC157AD
74LVC157ADB
74LVC157APW
74LVC157ABQ
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
SO16
SSOP16
TSSOP16
Description
plastic small outline package; 16 leads;
body width 3.9 mm
plastic shrink small outline package; 16 leads;
body width 5.3 mm
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
Version
SOT109-1
SOT338-1
SOT403-1
SOT763-1
DHVQFN16 plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads; 16 terminals;
body 2.5 × 3.5 × 0.85 mm
4. Functional diagram
1
15
2
2
3
5
6
11
10
14
13
G1
EN
1
1
7
9
12
mna482
3
5
6
11
10
MUX
4
1I0 1I1 2I0 2I1 3I0 3I1 4I0 4I1
1
15
S
E
1Y
4
2Y
7
3Y
9
4Y
12
mna481
14
13
Fig. 1.
Logic symbol
Fig. 2.
IEC logic symbol
2
3
5
6
11
10
14
13
1I0
1I1
2I0
2I1
3I0
3I1
4I0
4I1
SELECTOR
MULTIPLEXER
OUTPUTS
1Y
4
2Y
7
3Y
9
4Y 12
S
1
E
15
mna483
Fig. 3.
Functional diagram
74LVC157A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2020. All rights reserved
Product data sheet
Rev. 9 — 19 March 2020
2 / 16
Nexperia
74LVC157A
Quad 2-input multiplexer
S
E
1I1
1I0
1Y
2I1
2I0
2Y
3I1
3I0
3Y
4I1
4I0
4Y
mna484
Fig. 4.
Logic diagram
5. Pinning information
5.1. Pinning
74LVC157A
terminal 1
index area
1I0
S
1I0
1I1
1Y
2I0
2I1
2Y
GND
1
2
3
4
5
6
7
8
001aac930
2
3
4
5
6
7
GND
(1)
8
9
3Y
16 V
CC
15 E
14 4I0
13 4I1
12 4Y
11 3I0
10 3I1
16 V
CC
15 E
14 4I0
1I1
1Y
2I0
2I1
2Y
74LVC157A
13 4I1
12 4Y
11 3I0
10 3I1
9
3Y
GND
1
S
001aac931
Transparent top view
(1) This is not a supply pin. There is no electrical or
mechanical requirement to solder the pad. In case
soldered, the solder land should remain floating or
connected to GND.
Fig. 6.
Pin configuration for DHVQFN16
Fig. 5.
Pin configuration for SO16 and (T)SSOP16
74LVC157A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2020. All rights reserved
Product data sheet
Rev. 9 — 19 March 2020
3 / 16
Nexperia
74LVC157A
Quad 2-input multiplexer
5.2. Pin description
Table 2. Pin description
Symbol
S
1I0
1I1
1Y
2I0
2I1
2Y
GND
3Y
3I1
3I0
4Y
4I1
4I0
E
V
CC
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Description
common data select input
data input from source 0
data input from source 1
multiplexer output
data input from source 0
data input from source 1
multiplexer output
ground (0 V)
multiplexer output
data input from source 1
data input from source 0
multiplexer output
data input from source 1
data input from source 0
enable input (active LOW)
supply voltage
6. Functional description
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care
Input
E
H
L
L
L
L
S
X
L
L
H
H
nI0
X
L
H
X
X
nI1
X
X
X
L
H
Output
nY
L
L
H
L
H
74LVC157A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2020. All rights reserved
Product data sheet
Rev. 9 — 19 March 2020
4 / 16
Nexperia
74LVC157A
Quad 2-input multiplexer
7. Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
[3]
Parameter
supply voltage
input clamping current
input voltage
output clamping current
output voltage
output current
supply current
ground current
storage temperature
total power dissipation
Conditions
V
I
< 0
[1]
V
O
> V
CC
or V
O
< 0
[2]
V
O
= 0 V to V
CC
Min
-0.5
-50
-0.5
-
-0.5
-
-
-100
-65
Max
+6.5
-
+6.5
±50
V
CC
+ 0.5
±50
100
-
+150
500
Unit
V
mA
V
mA
V
mA
mA
mA
°C
mW
T
amb
= -40 °C to +125 °C
[3]
-
The minimum input voltage ratings may be exceeded if the input current ratings are observed.
The output voltage ratings may be exceeded if the output current ratings are observed.
For SOT109-1 (SO16) package: P
tot
derates linearly with 12.4 mW/K above 110 °C.
For SOT338-1 (SSOP16) package: P
tot
derates linearly with 8.5 mW/K above 91 °C.
For SOT403-1 (TSSOP16) package: P
tot
derates linearly with 8.5 mW/K above 91 °C.
For SOT763-1 (DHVQFN16) package: P
tot
derates linearly with 11.2 mW/K above 106 °C.
8. Recommended operating conditions
Table 5. Recommended operating conditions
Symbol
Parameter
Conditions
V
CC
V
I
V
O
T
amb
Δt/ΔV
supply voltage
functional
input voltage
output voltage
ambient temperature
input transition rise and fall
rate
V
CC
= 1.65 V to 2.7 V
V
CC
= 2.7 V to 3.6 V
Min
1.65
1.2
0
0
-40
0
0
Typ
-
-
-
-
-
-
-
Max
3.6
-
5.5
V
CC
+125
20
10
Unit
V
V
V
V
°C
ns/V
ns/V
74LVC157A
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2020. All rights reserved
Product data sheet
Rev. 9 — 19 March 2020
5 / 16
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