74LVC157ABQ,115 [NXP]
74LVC157A - Quad 2-input multiplexer QFN 16-Pin;
| 型号： | 74LVC157ABQ,115 |
| 厂家： | 
NXP |
| 描述： | 74LVC157A - Quad 2-input multiplexer QFN 16-Pin |
| 文件： | 总17页 (文件大小：280K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
74LVC157A
Quad 2-input multiplexer
Rev. 7 — 25 November 2011
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
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
3. Ordering information
Table 1.
Ordering information
Type number
Package
Temperature range Name
Description
Version
74LVC157AD
40 C to +125 C
SO16
plastic small outline package; 16 leads;
body width 3.9 mm
SOT109-1
74LVC157ADB 40 C to +125 C
74LVC157APW 40 C to +125 C
74LVC157ABQ 40 C to +125 C
SSOP16
TSSOP16
plastic shrink small outline package; 16 leads;
body width 5.3 mm
SOT338-1
SOT403-1
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
DHVQFN16 plastic dual In-line compatible thermal enhanced very SOT763-1
thin quad flat package; no leads; 16 terminals;
body 2.5 3.5 0.85 mm
4. Functional diagram
1
G1
15
EN
2
1
1
MUX
4
7
9
3
5
6
2
3
5
6
11 10 14 13
1I0 1I1 2I0 2I1 3I0 3I1 4I0 4I1
1
S
E
11
10
15
1Y
4
2Y
7
3Y
9
4Y
12
14
13
12
mna482
mna481
Fig 1. Logic symbol
Fig 2. IEC logic symbol
1I0
2
3
1Y
2Y
3Y
4Y
4
7
1I1
2I0
2I1
3I0
3I1
4I0
5
6
MULTIPLEXER
OUTPUTS
SELECTOR
11
10
14
9
12
13 4I1
S
1
E
mna483
15
Fig 3. Functional diagram
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
2 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
S
E
1I1
1Y
2Y
3Y
4Y
1I0
2I1
2I0
3I1
3I0
4I1
4I0
mna484
Fig 4. Logic diagram
5. Pinning information
5.1 Pinning
74LVC157A
terminal 1
index area
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S
1I0
V
E
CC
2
3
4
5
6
7
15
14
13
12
11
10
1I0
E
1I1
4I0
4I1
4Y
3I0
3I1
3Y
1I1
1Y
2I0
2I1
2Y
4I0
4I1
4Y
3I0
3I1
1Y
74LVC157A
2I0
(1)
GND
2I1
2Y
001aac931
GND
Transparent top view
001aac930
(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to GND.
Fig 5. Pin configuration for SO16 and (T)SSOP16
Fig 6. Pin configuration for DHVQFN16
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
3 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
5.2 Pin description
Table 2.
Symbol
S
Pin description
Pin
1
Description
common data select input
data input from source 0
data input from source 1
multiplexer output
1I0
2
1I1
3
1Y
4
2I0
5
data input from source 0
data input from source 1
multiplexer output
2I1
6
2Y
7
GND
3Y
8
ground (0 V)
9
multiplexer output
3I1
10
11
12
13
14
15
16
data input from source 1
data input from source 0
multiplexer output
3I0
4Y
4I1
data input from source 1
data input from source 0
enable input (active LOW)
supply voltage
4I0
E
VCC
6. Functional description
Table 3.
Function table[1]
Input
Output
E
H
L
L
L
L
S
X
L
nI0
X
nI1
X
nY
L
L
X
L
L
H
X
X
H
L
H
H
L
X
H
H
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
4 of 17
74LVC157A
NXP Semiconductors
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
VCC
IIK
Parameter
Conditions
Min
0.5
50
0.5
-
Max
+6.5
-
Unit
V
supply voltage
input clamping current
input voltage
VI < 0
mA
V
[1]
[2]
VI
+6.5
50
VCC + 0.5
50
100
-
IOK
output clamping current
output voltage
VO > VCC or VO < 0
VO = 0 V to VCC
mA
V
VO
0.5
-
IO
output current
mA
mA
mA
C
ICC
supply current
-
IGND
Tstg
Ptot
ground current
100
65
-
storage temperature
total power dissipation
+150
500
[3]
Tamb = 40 C to +125 C
mW
[1] The minimum input voltage ratings may be exceeded if the input current ratings are observed.
[2] The output voltage ratings may be exceeded if the output current ratings are observed.
[3] For SO16 packages: above 70 C the value of PD derates linearly with 8 mW/K.
For (T)SSOP16 packages: above 60 C the value of PD derates linearly with 5.5 mW/K.
For DHVQFN16 packages: above 60 C the value of PD derates linearly with 4.5 mW/K.
8. Recommended operating conditions
Table 5.
Symbol
VCC
Recommended operating conditions
Parameter
Conditions
Min
1.65
1.2
0
Typ
Max
Unit
V
supply voltage
-
-
-
-
-
-
-
3.6
-
functional
V
VI
input voltage
5.5
VCC
+125
20
V
VO
output voltage
0
V
Tamb
t/V
ambient temperature
40
0
C
ns/V
ns/V
input transition rise and fall
rate
VCC = 1.65 V to 2.7 V
VCC = 2.7 V to 3.6 V
0
10
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
5 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
9. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
40 C to +85 C
Min Max
Typ[1]
1.08
40 C to +125 C
Min Max
1.08
Unit
VIH
HIGH-level
VCC = 1.2 V
-
-
-
-
-
-
V
V
V
V
V
V
V
V
input voltage
VCC = 1.65 V to 1.95 V
VCC = 2.3 V to 2.7 V
VCC = 2.7 V to 3.6 V
VCC = 1.2 V
0.65 VCC
-
-
-
-
-
-
-
-
0.65 VCC
1.7
-
1.7
2.0
-
2.0
VIL
LOW-level
-
-
-
-
0.12
-
-
-
-
0.12
input voltage
VCC = 1.65 V to 1.95 V
VCC = 2.3 V to 2.7 V
VCC = 2.7 V to 3.6 V
VI = VIH or VIL
0.35 VCC
0.7
0.35 VCC
0.7
0.8
0.8
VOH
HIGH-level
output
IO = 100 A;
VCC = 1.65 V to 3.6 V
VCC 0.2
-
-
VCC 0.3
-
V
voltage
IO = 4 mA; VCC = 1.65 V
IO = 8 mA; VCC = 2.3 V
IO = 12 mA; VCC = 2.7 V
IO = 18 mA; VCC = 3.0 V
IO = 24 mA; VCC = 3.0 V
VI = VIH or VIL
1.2
1.8
2.2
2.4
2.2
-
-
-
-
-
-
-
-
-
-
1.05
1.65
2.05
2.25
2.0
-
-
-
-
-
V
V
V
V
V
VOL
LOW-level
output
voltage
IO = 100 A;
VCC = 1.65 V to 3.6 V
-
-
0.2
-
0.3
V
IO = 4 mA; VCC = 1.65 V
IO = 8 mA; VCC = 2.3 V
IO = 12 mA; VCC = 2.7 V
IO = 24 mA; VCC = 3.0 V
-
-
-
-
-
-
0.45
0.6
-
-
-
-
-
0.65
0.8
V
-
V
-
0.4
0.6
V
-
0.55
5
0.8
V
II
input leakage VCC = 3.6 V; VI = 5.5 V or GND
current
0.1
20
A
ICC
ICC
supply
current
VCC = 3.6 V; VI = VCC or GND;
IO = 0 A
-
-
0.1
5
10
-
-
40
A
A
additional
supply
per input pin;
500
5000
VCC = 2.7 V to 3.6 V;
current
VI = VCC 0.6 V; IO = 0 A
CI
input
VCC = 0 V to 3.6 V;
-
5.0
-
-
-
pF
capacitance VI = GND to VCC
[1] All typical values are measured at VCC = 3.3 V (unless stated otherwise) and Tamb = 25 C.
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
6 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
10. Dynamic characteristics
Table 7.
Dynamic characteristics
Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 9.
Symbol Parameter
Conditions
40 C to +85 C
40 C to +125 C Unit
Min
Typ[1]
Max
Min
Max
[2]
[2]
[2]
tpd
propagation delay
nI0, nI1 to nY; see Figure 8
VCC = 1.2 V
-
16
4.8
2.8
2.9
2.5
-
-
-
ns
ns
ns
ns
ns
VCC = 1.65 V to 1.95 V
VCC = 2.3 V to 2.7 V
VCC = 2.7 V
1.0
1.5
1.0
1.0
10.2
5.8
5.9
5.2
1.0
1.5
1.0
1.0
11.8
6.7
7.5
6.5
VCC = 3.0 V to 3.6 V
E to nY; see Figure 7
VCC = 1.2 V
-
17
4.8
2.8
2.9
2.6
-
-
-
ns
ns
ns
ns
ns
VCC = 1.65 V to 1.95 V
VCC = 2.3 V to 2.7 V
VCC = 2.7 V
0.5
1.5
1.0
1.0
12.8
7.2
7.8
6.5
0.5
1.5
1.0
1.0
14.7
8.3
10.0
8.5
VCC = 3.0 V to 3.6 V
S to nY; see Figure 8
VCC = 1.2 V
-
16
5.1
3.0
3.1
2.7
-
-
-
-
ns
ns
ns
ns
ns
ns
VCC = 1.65 V to 1.95 V
1.0
1.5
1.0
1.0
-
12.4
7.0
7.3
6.3
1.0
1.0
1.5
1.0
1.0
-
14.3
8.1
9.5
8.0
1.5
VCC = 2.3 V to 2.7 V
VCC = 2.7 V
VCC = 3.0 V to 3.6 V
VCC = 3.0 V to 3.6 V
per input; VI = GND to VCC
VCC = 1.65 V to 1.95 V
VCC = 2.3 V to 2.7 V
VCC = 3.0 V to 3.6 V
[3]
[4]
tsk(o)
CPD
output skew time
power dissipation
capacitance
-
-
-
9.4
-
-
-
-
-
-
-
-
-
pF
pF
pF
12.8
15.9
[1] Typical values are measured at Tamb = 25 C and VCC = 1.2 V, 1.8 V, 2.5 V, 2.7 V, and 3.3 V respectively.
[2] pd is the same as tPLH and tPHL
[3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
[4] PD is used to determine the dynamic power dissipation (PD in W).
t
.
C
PD = CPD VCC2 fi N + (CL VCC2 fo) where:
fi = input frequency in MHz; fo = output frequency in MHz
CL = output load capacitance in pF
VCC = supply voltage in V
N = number of inputs switching
(CL VCC2 fo) = sum of outputs
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
7 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
11. Waveforms
V
CC
V
E input
M
GND
t
t
PHL
PLH
V
OH
V
nY output
M
mna485
V
OL
VM = 1.5 V at VCC 2.7 V; VM = 0.5 VCC at VCC < 2.7 V.
VOL and VOH are typical output voltage levels that occur with the output load.
Fig 7. Enable input (E) to output (nY) propagation delays
V
I
nI0, nI1, S
input
V
M
GND
t
t
PHL
PLH
V
OH
V
nY output
M
mna486
V
OL
VM = 1.5 V at VCC 2.7 V; VM = 0.5 VCC at VCC < 2.7 V.
VOL and VOH are typical output voltage levels that occur with the output load.
Fig 8. Data inputs (nI0, nI1) and common data select input (S) to output (nY) propagation delays
74LVC157A
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
8 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
t
W
V
I
90 %
negative
pulse
V
V
V
M
M
10 %
0 V
t
t
r
f
t
t
f
r
V
I
90 %
positive
pulse
V
M
M
10 %
0 V
t
W
V
CC
V
V
O
I
PULSE
GENERATOR
DUT
R
T
C
L
R
L
001aaf615
Test data is given in Table 8. Definitions for test circuit:
RL = Load resistance.
CL = Load capacitance including jig and probe capacitance.
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
Fig 9. Test circuit for measuring switching times
Table 8.
Test data
Supply voltage
Input
VI
Load
CL
tr, tf
RL
1.2 V
VCC
VCC
VCC
2.7 V
2.7 V
2 ns
2 ns
2 ns
2.5 ns
2.5 ns
30 pF
30 pF
30 pF
50 pF
50 pF
1 k
1 k
500
500
500
1.65 V to 1.95 V
2.3 V to 2.7 V
2.7 V
3.0 V to 3.6 V
74LVC157A
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
9 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
12. Package outline
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
D
E
A
X
c
y
H
v
M
A
E
Z
16
9
Q
A
2
A
(A )
3
A
1
pin 1 index
θ
L
p
L
1
8
e
w
M
detail X
b
p
0
2.5
scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
(1)
(1)
(1)
UNIT
A
A
A
b
c
D
E
e
H
L
L
p
Q
v
w
y
Z
θ
1
2
3
p
E
max.
0.25
0.10
1.45
1.25
0.49
0.36
0.25
0.19
10.0
9.8
4.0
3.8
6.2
5.8
1.0
0.4
0.7
0.6
0.7
0.3
mm
1.27
0.05
1.05
0.041
1.75
0.25
0.01
0.25
0.01
0.25
0.1
8o
0o
0.010 0.057
0.004 0.049
0.019 0.0100 0.39
0.014 0.0075 0.38
0.16
0.15
0.244
0.228
0.039 0.028
0.016 0.020
0.028
0.012
inches
0.069
0.01 0.004
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
99-12-27
03-02-19
SOT109-1
076E07
MS-012
Fig 10. Package outline SOT109-1 (SO16)
74LVC157A
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
10 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
SSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm
SOT338-1
D
E
A
X
c
y
H
v
M
A
E
Z
9
16
Q
A
2
A
(A )
3
A
1
pin 1 index
θ
L
p
L
8
1
detail X
w M
b
p
e
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
A
(1)
(1)
(1)
UNIT
A
A
A
b
c
D
E
e
H
L
L
Q
v
w
y
Z
θ
p
p
1
2
3
E
max.
8o
0o
0.21
0.05
1.80
1.65
0.38
0.25
0.20
0.09
6.4
6.0
5.4
5.2
7.9
7.6
1.03
0.63
0.9
0.7
1.00
0.55
mm
2
0.25
0.65
1.25
0.2
0.13
0.1
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
99-12-27
03-02-19
SOT338-1
MO-150
Fig 11. Package outline SOT338-1 (SSOP16)
74LVC157A
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
11 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm
SOT403-1
D
E
A
X
c
y
H
v
M
A
E
Z
9
16
Q
(A )
3
A
2
A
A
1
pin 1 index
θ
L
p
L
1
8
detail X
w
M
b
p
e
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
A
(1)
(2)
(1)
UNIT
A
A
A
b
c
D
E
e
H
L
L
Q
v
w
y
Z
θ
1
2
3
p
E
p
max.
8o
0o
0.15
0.05
0.95
0.80
0.30
0.19
0.2
0.1
5.1
4.9
4.5
4.3
6.6
6.2
0.75
0.50
0.4
0.3
0.40
0.06
mm
1.1
0.65
0.25
1
0.2
0.13
0.1
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
99-12-27
03-02-18
SOT403-1
MO-153
Fig 12. Package outline SOT403-1 (TSSOP16)
74LVC157A
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
12 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
DHVQFN16: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads;
16 terminals; body 2.5 x 3.5 x 0.85 mm
SOT763-1
B
A
D
A
A
1
E
c
detail X
terminal 1
index area
C
terminal 1
index area
e
1
y
y
e
b
v
M
C
C
A
B
C
1
w
M
2
7
L
1
8
9
E
h
e
16
15
10
D
h
X
0
2.5
scale
5 mm
DIMENSIONS (mm are the original dimensions)
(1)
A
(1)
(1)
UNIT
A
b
c
E
e
e
y
D
D
E
L
v
w
y
1
1
h
1
h
max.
0.05 0.30
0.00 0.18
3.6
3.4
2.15
1.85
2.6
2.4
1.15
0.85
0.5
0.3
mm
0.05
0.1
1
0.2
0.5
2.5
0.1
0.05
Note
1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
02-10-17
03-01-27
SOT763-1
- - -
MO-241
- - -
Fig 13. Package outline SOT763-1 (DHVQFN16)
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
13 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
13. Abbreviations
Table 9.
Acronym
CDM
DUT
Abbreviations
Description
Charged Device Model
Device Under Test
ESD
ElectroStatic Discharge
Human Body Model
Machine Model
HBM
MM
TTL
Transistor-Transistor Logic
14. Revision history
Table 10. Revision history
Document ID
74LVC157A v.7
Modifications:
74LVC157A v.6
Modifications:
Release date
20111125
Data sheet status
Change notice
Supersedes
Product data sheet
-
74LVC157A v.6
• Table 7: maximum values for lower voltage ranges changed (errata).
20111027 Product data sheet
-
74LVC157A v.5
• The format of this document has been redesigned to comply with the new identity guidelines of
NXP Semiconductors.
• Legal texts have been adapted to the new company name where appropriate.
• Table 4, Table 5, Table 6, Table 7, and Table 8: values added for lower voltage ranges.
74LVC157A v.5
74LVC157A v.4
74LVC157A v.3
74LVC157A v.2
031202
030617
020315
980729
Product specification
Product specification
Product specification
Product specification
-
-
-
-
74LVC157A v.4
74LVC157A v.3
74LVC157A v.2
-
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
14 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
15. Legal information
15.1 Data sheet status
Document status[1][2]
Product status[3]
Development
Definition
Objective [short] data sheet
This document contains data from the objective specification for product development.
This document contains data from the preliminary specification.
This document contains the product specification.
Preliminary [short] data sheet Qualification
Product [short] data sheet Production
[1]
[2]
[3]
Please consult the most recently issued document before initiating or completing a design.
The term ‘short data sheet’ is explained in section “Definitions”.
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nxp.com.
malfunction of an NXP Semiconductors product can reasonably be expected
15.2 Definitions
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors accepts no liability for inclusion and/or use of
NXP Semiconductors products in such equipment or applications and
therefore such inclusion and/or use is at the customer’s own risk.
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local NXP Semiconductors sales
office. In case of any inconsistency or conflict with the short data sheet, the
full data sheet shall prevail.
Customers are responsible for the design and operation of their applications
and products using NXP Semiconductors products, and NXP Semiconductors
accepts no liability for any assistance with applications or customer product
design. It is customer’s sole responsibility to determine whether the NXP
Semiconductors product is suitable and fit for the customer’s applications and
products planned, as well as for the planned application and use of
customer’s third party customer(s). Customers should provide appropriate
design and operating safeguards to minimize the risks associated with their
applications and products.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
NXP Semiconductors and its customer, unless NXP Semiconductors and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the NXP Semiconductors product is
deemed to offer functions and qualities beyond those described in the
Product data sheet.
NXP Semiconductors does not accept any liability related to any default,
damage, costs or problem which is based on any weakness or default in the
customer’s applications or products, or the application or use by customer’s
third party customer(s). Customer is responsible for doing all necessary
testing for the customer’s applications and products using NXP
Semiconductors products in order to avoid a default of the applications and
the products or of the application or use by customer’s third party
customer(s). NXP does not accept any liability in this respect.
15.3 Disclaimers
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, NXP Semiconductors does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information.
In no event shall NXP Semiconductors be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Terms and conditions of commercial sale — NXP Semiconductors
products are sold subject to the general terms and conditions of commercial
sale, as published at http://www.nxp.com/profile/terms, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. NXP Semiconductors hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of NXP Semiconductors products by customer.
Notwithstanding any damages that customer might incur for any reason
whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards
customer for the products described herein shall be limited in accordance
with the Terms and conditions of commercial sale of NXP Semiconductors.
Right to make changes — NXP Semiconductors reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Suitability for use — NXP Semiconductors products are not designed,
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
15 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
Non-automotive qualified products — Unless this data sheet expressly
states that this specific NXP Semiconductors product is automotive qualified,
the product is not suitable for automotive use. It is neither qualified nor tested
in accordance with automotive testing or application requirements. NXP
Semiconductors accepts no liability for inclusion and/or use of
NXP Semiconductors’ specifications such use shall be solely at customer’s
own risk, and (c) customer fully indemnifies NXP Semiconductors for any
liability, damages or failed product claims resulting from customer design and
use of the product for automotive applications beyond NXP Semiconductors’
standard warranty and NXP Semiconductors’ product specifications.
non-automotive qualified products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards, customer
(a) shall use the product without NXP Semiconductors’ warranty of the
product for such automotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
15.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
16. Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
74LVC157A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 25 November 2011
16 of 17
74LVC157A
NXP Semiconductors
Quad 2-input multiplexer
17. Contents
1
2
3
4
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Ordering information. . . . . . . . . . . . . . . . . . . . . 2
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2
5
5.1
5.2
Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
6
Functional description . . . . . . . . . . . . . . . . . . . 4
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recommended operating conditions. . . . . . . . 5
Static characteristics. . . . . . . . . . . . . . . . . . . . . 6
Dynamic characteristics . . . . . . . . . . . . . . . . . . 7
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 10
Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 14
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 14
7
8
9
10
11
12
13
14
15
Legal information. . . . . . . . . . . . . . . . . . . . . . . 15
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 15
Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
15.1
15.2
15.3
15.4
16
17
Contact information. . . . . . . . . . . . . . . . . . . . . 16
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2011.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 25 November 2011
Document identifier: 74LVC157A
相关型号：
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