74LV157D [NXP]
Quad 2-input multiplexer; 四2输入多路复用器型号: | 74LV157D |
厂家: | NXP |
描述: | Quad 2-input multiplexer |
文件: | 总12页 (文件大小:118K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74LV157
Quad 2-input multiplexer
Product specification
1998 Apr 30
Supersedes data of 1997 May 15
IC24 Data Handbook
Philips
Semiconductors
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
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.
FEATURES
• Optimized for low voltage applications: 1.0 to 3.6 V
• Accepts TTL input levels between V = 2.7 V and V = 3.6 V
CC
CC
• Typical V
(output ground bounce) < 0.8 V at V = 3.3 V,
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.
OLP
= 25°C
CC
T
amb
• Typical V
(output V undershoot) > 2 V at V = 3.3 V,
OHV
OH
CC
T
amb
= 25°C
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.
• Output capability: standard
• I category: MSI
CC
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.
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
= 25°C; t = t ≤ 2.5 ns
amb
r f
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
Propagation delay
nl , nl , to nY
E to nY
S to nY
10
11
12
C = 15 pF;
0
1
L
t
/t
ns
PHL PLH
V
CC
= 3.3 V
C
Input capacitance
3.5
70
pF
pF
I
1
C
Power dissipation capacitance per gate
V = GND to V
I CC
PD
NOTES:
1. C is used to determine the dynamic power dissipation (P in µW)
PD
D
2
2
P
= C × V
× f )ȍ (C × V
× f ) where:
D
PD
CC
i
L
CC o
f = input frequency in MHz; C = output load capacitance in pF;
i
L
f = output frequency in MHz; V = supply voltage in V;
o
CC
2
ȍ (C × V
× f ) = sum of the outputs.
L
CC
o
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
NORTH AMERICA
74LV157 N
PKG. DWG. #
SOT38-4
16-Pin Plastic DIL
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
74LV157 N
74LV157 D
74LV157 DB
74LV157 PW
16-Pin Plastic SO
74LV157 D
SOT109-1
SOT338-1
SOT403-1
16-Pin Plastic SSOP Type II
16-Pin Plastic TSSOP Type I
74LV157 DB
74LV157PW DH
2
1998 Apr 30
853–1920 19318
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
PIN CONFIGURATION
LOGIC SYMBOL
2
3
5
6
11
3I
10
3I
14
4I
13
4I
S
1
16
15
14
V
CC
2
1I
1I
E
0
1
3
4
5
6
4I
1I
1I
2I
2I
1
0
1
0
0
1
0
1
0
1
1Y
13 4I
1
S
E
2I
12
11
4Y
0
1
15
2I
3I
3I
0
1
1Y
4
2Y
7
3Y
9
4Y
12
2Y
7
8
10
9
GND
3Y
SV00563
SV00564
PIN DESCRIPTION
FUNCTIONAL DIAGRAM
PIN
NUMBER
SYMBOL
FUNCTION
2
3
1I
1I
0
1
1
S
Common data select input
Data inputs from source 0
Data inputs from source 1
Multiplexer outputs
1Y
4
2, 5, 11, 14
1l to 4l
0
0
1
3, 6, 10, 13
1l to 4l
1
5
6
2I
2I
0
1
7
9
2Y
3Y
4, 7, 9, 12
1Y to 4Y
GND
E
8
Ground (0 V)
MULTIPLEXER
OUTPUTS
SELECTOR
11
10
3I
3I
15
16
Enable inputs (active LOW)
Positive supply voltage
0
1
V
CC
14
13
4I
4I
0
1
LOGIC SYMBOL (IEEE/IEC)
4Y
12
1
G1
15
EN
S
1
E
15
2
SV00566
MUX
1
4
7
9
3
1
5
6
11
10
14
13
12
SV00565
3
1998 Apr 30
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
CONDITIONS
MIN
1.0
0
TYP
3.3
–
MAX
UNIT
V
CC
DC supply voltage
See Note 1
3.6
V
V
V
V
I
Input voltage
V
CC
V
CC
V
O
Output voltage
0
–
See DC and AC
characteristics
–40
–40
+85
+125
T
Operating ambient temperature range in free air
Input rise and fall times
°C
amb
V
V
V
= 1.0V to 2.0V
= 2.0V to 2.7V
= 2.7V to 3.6V
–
–
–
–
–
–
500
200
100
CC
CC
CC
t , t
r
ns/V
f
NOTE:
1. The LV is guaranteed to function down to V = 1.0V (input levels GND or V ); DC characteristics are guaranteed from V = 1.2V to V = 3.6V.
CC
CC
CC
CC
1, 2
ABSOLUTE MAXIMUM RATINGS
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0 V).
SYMBOL
PARAMETER
DC supply voltage
CONDITIONS
RATING
–0.5 to +4.6
20
UNIT
V
CC
V
"I
DC input diode current
DC output diode current
V < –0.5 or V > V + 0.5V
mA
mA
IK
I
I
CC
"I
V
O
< –0.5 or V > V + 0.5V
50
OK
O
CC
DC output source or sink current
– standard outputs
"I
–0.5V < V < V + 0.5V
mA
O
O
CC
25
DC V or GND current for types with
– standard outputs
CC
"I
"I
,
mA
GND
50
CC
T
stg
Storage temperature range
–65 to +150
°C
Power dissipation per package
– plastic DIL
– plastic mini-pack (SO)
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
P
TOT
mW
– plastic shrink mini-pack (SSOP and TSSOP)
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.
4
1998 Apr 30
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
LIMITS
MAX
-40°C to +85°C
-40°C to +125°C
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
V
1
MIN
0.9
1.4
2.0
TYP
MIN
0.9
1.4
2.0
MAX
V
V
V
V
V
V
V
V
V
V
= 1.2 V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
HIGH level Input
voltage
= 2.0 V
V
IH
= 2.7 to 3.6 V
= 1.2 V
0.3
0.6
0.8
0.3
0.6
0.8
LOW level Input
voltage
= 2.0 V
V
IL
V
= 2.7 to 3.6 V
= 1.2 V; V = V or V –I = 100µA
1.2
2.0
2.7
3.0
I
IH
IL;
O
= 2.0 V; V = V or V –I = 100µA
1.8
2.5
2.8
1.8
2.5
2.8
I
IH
IL;
O
HIGH level output
voltage; all outputs
V
V
V
V
V
V
OH
= 2.7 V; V = V or V –I = 100µA
I
IH
IL;
O
= 3.0 V; V = V or V –I = 100µA
I
IH
IL;
O
HIGH level output
voltage;
STANDARD
outputs
V
CC
= 3.0 V; V = V or V –I = 6mA
2.40
2.82
2.20
OH
I
IH
IL;
O
V
CC
V
CC
V
CC
V
CC
= 1.2 V; V = V or V I
IL; O
= 100µA
= 100µA
= 100µA
= 100µA
0
0
0
0
I
IH
= 2.0 V; V = V or V I
IL; O
0.2
0.2
0.2
0.2
0.2
0.2
I
IH
LOW level output
voltage; all outputs
V
V
OL
= 2.7 V; V = V or V I
IL; O
I
IH
= 3.0 V; V = V or V I
IL; O
I
IH
LOW level output
voltage;
STANDARD
outputs
V
CC
= 3.0 V; V = V or V I = 6mA
IL; O
0.25
0.40
0.50
OL
I
IH
Input leakage
current
I
V
V
= 3.6 V; V = V or GND
1.0
1.0
µA
µA
I
CC
I
CC
Quiescent supply
current; MSI
I
= 3.6 V; V = V or GND; I = 0
20.0
160
CC
CC
I
CC
O
Additional
quiescent supply
current per input
∆I
CC
V
CC
= 2.7 V to 3.6 V; V = V – 0.6 V
500
850
µA
I
CC
NOTE:
1. All typical values are measured at T
= 25°C.
amb
5
1998 Apr 30
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
AC CHARACTERISTICS
GND = 0V; t = t = 2.5ns; C = 50pF; R = KΩ
r
f
L
L
LIMITS
–40 to +85 °C
CONDITION
(V)
–40 to +125 °C
SYMBOL
PARAMETER
WAVEFORM
UNIT
1
V
CC
MIN
TYP
65
MAX
MIN
MAX
1.2
2.0
2.7
Propagation delay
nl to nY;
nl to nY
22
43
31
25
51
38
30
t
t
t
t
Figures 1, 2
Figures 1, 2
Figures 1, 2
ns
PHL/ PLH
0
1
16
2
3.0 to 3.6
1.2
12
70
24
18
2.0
44
33
26
54
40
32
Propagation delay
E to nY
t
ns
ns
PHL/ PLH
2.7
2
3.0 to 3.6
1.2
13
75
26
19
2.0
49
36
29
60
44
35
Propagation delay
S to nY
t
PHL/ PLH
2.7
2
3.0 to 3.6
14
NOTES:
1. Unless otherwise stated, all typical values are measured at T
= 25°C
amb
2. Typical values are measured at V = 3.3 V.
CC
AC WAVEFORMS
TEST CIRCUIT
V
V
V
= 1.5 V at V ≥ 2.7 V;
M
CC
V
= 0.5 V × V at V < 2.7 V.
CC
M
CC
CC
and V are the typical output voltage drop that occur with the
OL
OH
output load.
V
V
O
I
V
CC
PULSE
GENERATOR
D.U.T.
E INPUT
V
M
50pF
R
= 1k
L
R
T
C
L
GND
t
t
PLH
PHL
V
OH
Test Circuit for switching times
DEFINITIONS
nY OUTPUT
V
M
R
L
C
L
R
T
= Load resistor
V
OL
= Load capacitance includes jig and probe capacitance
= Termination resistance should be equal to Z of pulse generators.
SV00567
OUT
Figure 1. Enable input (E) to output (nY)
TEST
V
V
I
CC
propagation delays and output transition times.
t
t
< 2.7V
V
CC
PLH/ PHL
2.7–3.6V
2.7V
V
CC
SV00901
nI , nI , S
0
1
V
M
INPUT
GND
Figure 3. Load circuitry for switching times.
t
t
PLH
PHL
V
OH
V
nY OUTPUT
M
V
OL
SV00568
Figure 2. Data inputs (nl ) and common data select input (S) to
n
output (nY) propagation delays.
6
1998 Apr 30
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
DIP16: plastic dual in-line package; 16 leads (300 mil)
SOT38-4
7
1998 Apr 30
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
8
1998 Apr 30
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
SSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm
SOT338-1
9
1998 Apr 30
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm
SOT403-1
10
1998 Apr 30
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
NOTES
11
1998 Apr 30
Philips Semiconductors
Product specification
Quad 2-input multiplexer
74LV157
DEFINITIONS
Data Sheet Identification
Product Status
Definition
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
Objective Specification
Formative or in Design
Preproduction Product
Full Production
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.
Preliminary Specification
Product Specification
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. PhilipsSemiconductorsmakesnorepresentationorwarrantythatsuchapplicationswillbesuitableforthespecifiedusewithoutfurthertesting
or modification.
LIFE SUPPORT APPLICATIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
orsystemswheremalfunctionofaPhilipsSemiconductorsandPhilipsElectronicsNorthAmericaCorporationProductcanreasonablybeexpected
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
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Date of release: 05-96
9397-750-04427
Document order number:
Philips
Semiconductors
相关型号:
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