74LVX157MTCX [ONSEMI]
低压四通道2输入复用器;
| 型号： | 74LVX157MTCX |
| 厂家： | 
ONSEMI |
| 描述： | 低压四通道2输入复用器 光电二极管 逻辑集成电路 复用器 |
| 文件： | 总9页 (文件大小：196K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
May 1993
Revised October 2003
74LVX157
Low Voltage Quad 2-Input Multiplexer
General Description
Features
The LVX157 is a high-speed quad 2-input multiplexer. Four
bits of data from two sources can be selected using the
common Select and Enable inputs. The four outputs
present the selected data in the true (noninverted) form.
The LVX157 can also be used as a function generator.
■ Input voltage level translation from 5V to 3V
■ Ideal for low power/low noise 3.3V applications
■ Guaranteed simultaneous switching noise level and
dynamic threshold performance
Ordering Code:
Order Number Package Number
Package Description
74LVX157M
M16A
M16D
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LVX157SJ
74LVX157MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices are also available in Tape and Reel. Specify by appending letter suffix “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Pin Descriptions
Pin Names
Description
I0a–I0d
1a–I1d
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input
I
E
S
Select Input
Za–Zd
Outputs
© 2003 Fairchild Semiconductor Corporation
DS011608
www.fairchildsemi.com
Truth Table
Inputs
Outputs
Z
E
S
I0
I1
H
L
L
L
L
X
H
H
L
X
X
X
L
X
L
L
L
H
X
X
H
L
L
H
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Functional Description
The LVX157 is a quad 2-input multiplexer. It selects four
bits of data from two sources under the control of a com-
mon Select input (S). The Enable input (E) is active-LOW.
When E is HIGH, all of the outputs (Z) are forced LOW
regardless of all other inputs. The LVX157 is the logic
implementation of a 4-pole, 2-position switch where the
position of the switch is determined by the logic levels sup-
plied to the Select input. The logic equations for the outputs
are shown below:
A common use of the LVX157 is the moving of data from
two groups of registers to four common output busses. The
particular register from which the data comes is determined
by the state of the Select input. A less obvious use is as a
function generator. The LVX157 can generate any four of
the sixteen different functions of two variables with one
variable common. This is useful for implementing gating
functions.
Za = E • (I1a • S + I0a • S)
Zb = E • (I1b • S + I0b • S)
Zc = E • (I1c • S + I0c • S)
Zd = E • (I1d • S + I0d • S)
Logic Diagram
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2
Absolute Maximum Ratings(Note 1)
Recommended Operating
Conditions (Note 2)
Supply Voltage (VCC
)
−0.5V to +7.0V
DC Input Diode Current (IIK
VI = −0.5V
)
Supply Voltage (VCC
)
2.0V to 3.6V
0V to 5.5V
−20 mA
Input Voltage (VI)
DC Input Voltage (VI)
−0.5V to 7V
Output Voltage (VO)
0V to VCC
DC Output Diode Current (IOK
)
Operating Temperature (TA)
Input Rise and Fall Time (∆t/∆V)
−40°C to +85°C
0 ns/V to 100 ns/V
V
V
O = −0.5V
−20 mA
+20 mA
O = VCC + 0.5V
DC Output Voltage (VO)
DC Output Source
−0.5V to VCC + 0.5V
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
or Sink Current (IO)
±25 mA
DC VCC or Ground Current
(ICC or IGND
)
±50 mA
−65°C to +150°C
180 mW
Storage Temperature (TSTG
Power Dissipation
)
Note 2: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
T
A = +25°C
TA = −40°C to +85°C
VCC
Symbol
Parameter
Units
Conditions
Min
1.5
2.0
2.4
Typ
Max
Min
1.5
2.0
2.4
Max
VIH
HIGH Level
2.0
3.0
3.6
2.0
3.0
3.6
2.0
3.0
3.0
2.0
3.0
3.0
3.6
Input Voltage
V
VIL
LOW Level
0.5
0.8
0.8
0.5
0.8
0.8
Input Voltage
V
V
VOH
HIGH Level
1.9
2.9
2.0
3.0
1.9
2.9
V
IN = VIL or VIH
I
I
I
I
I
I
OH = −50 µA
Output Voltage
OH = −50 µA
OH = −4 mA
OL = 50 µA
OL = 50 µA
OL = 4 mA
2.58
2.48
VOL
LOW Level
0.0
0.0
0.1
0.1
0.1
0.1
V
IN = V IL or VIH
Output Voltage
V
0.36
±0.1
0.44
±1.0
IIN
Input Leakage Current
µA
µA
V
V
IN = 5.5V or GND
ICC
Quiescent Supply Current
3.6
4.0
40.0
IN = VCC or GND
Noise Characteristics (Note 3)
VCC
TA = 25°C
CL (pF)
Symbol
Parameter
Units
(V)
3.3
3.3
3.3
3.3
Typ
0.3
Limit
0.5
VOLP
VOLV
VIHD
VILD
Quiet Output Maximum Dynamic VOL
Quiet Output Minimum Dynamic VOL
V
V
V
V
50
50
50
50
−0.3
−0.5
2.0
Minimum HIGH Level Dynamic Input Voltage
Maximum LOW Level Dynamic Input Voltage
0.8
Note 3: Input tr = tf = 3ns
3
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AC Electrical Characteristics
VCC
T
A = +25°C
TA = −40°C to +85°C
C
L (pF)
Symbol
Parameter
Units
(V)
Min
Typ
6.6
9.1
5.1
7.6
8.9
11.4
7.0
9.5
9.1
11.6
7.2
9.7
Max
12.5
16.0
7.9
Min
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Max
15.5
19.0
9.5
tPLH
Propagation
Delay Time
n to Zn
2.7
15
50
15
50
15
50
15
50
15
50
15
50
50
tPHL
ns
I
3.3 ± 0.3
2.7
11.4
16.9
20.4
11.0
14.5
17.6
21.1
11.5
15.0
1.5
13.0
20.5
24.0
13.0
16.5
20.5
24.0
13.5
17.0
1.5
tPLH
tPHL
Propagation
Delay Time
S to Zn
ns
3.3 ± 0.3
2.7
tPLH
tPHL
Propagation
Delay Time
E to Zn
ns
ns
3.3 ± 0.3
tOSHL
tOSLH
Output to Output
Skew (Note 4)
2.7
3.3
1.5
1.5
Note 4: Parameter guaranteed by design.
tOSLH = |tPLHm − tPLHn|.
t
OSHL = |tPHLm − tPHLn|.
Capacitance
T
A = +25°C
TA = −40°C to +85°C
Symbol
Parameter
Units
Min
Typ
4
Max
10
Min
Max
CIN
Input Capacitance
Power Dissipation Capacitance (Note 5)
10
pF
pF
CPD
20
Note 5: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: ICC(opr.) = CPD × VCC × fIN + ICC
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4
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Package Number M16A
5
www.fairchildsemi.com
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M16D
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6
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Package Number MTC16
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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7
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ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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相关型号：
74LVX157MX_NL
Multiplexer, LV/LV-A/LVX/H Series, 4-Func, 2 Line Input, 1 Line Output, True Output, CMOS, PDSO16, 0.150 INCH, MS-012, SOIC-16
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