SN74LS151M [ONSEMI]
IC LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, EIAJ, SOP-16, Multiplexer/Demultiplexer;
| 型号： | SN74LS151M |
| 厂家： | 
ONSEMI |
| 描述： | IC LS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16, EIAJ, SOP-16, Multiplexer/Demultiplexer |
| 文件： | 总8页 (文件大小：115K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
The TTL/MSI SN74LS151 is a high speed 8-input Digital
Multiplexer. It provides, in one package, the ability to select one bit of
data from up to eight sources. The LS151 can be used as a universal
function generator to generate any logic function of four variables.
Both assertion and negation outputs are provided.
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• Schottky Process for High Speed
• Multifunction Capability
• On-Chip Select Logic Decoding
• Fully Buffered Complementary Outputs
• Input Clamp Diodes Limit High Speed Termination Effects
LOW
POWER
SCHOTTKY
GUARANTEED OPERATING RANGES
Symbol
Parameter
Supply Voltage
Min
4.75
0
Typ
5.0
25
Max
5.25
70
Unit
V
V
CC
T
A
Operating Ambient
Temperature Range
°C
16
1
I
Output Current – High
Output Current – Low
–0.4
8.0
mA
mA
OH
PLASTIC
N SUFFIX
CASE 648
I
OL
16
1
SOIC
D SUFFIX
CASE 751B
ORDERING INFORMATION
Device
Package
16 Pin DIP
16 Pin
Shipping
SN74LS151N
SN74LS151D
2000 Units/Box
2500/Tape & Reel
Semiconductor Components Industries, LLC, 1999
1
Publication Order Number:
December, 1999 – Rev. 6
SN74LS151/D
SN74LS151
CONNECTION DIAGRAM DIP (TOP VIEW)
V
CC
I
4
I
5
I
6
I
7
S
0
S
1
S
2
16
15
14
13
12
11
10
9
1
2
3
4
5
6
8
7
I
3
I
2
I
1
I
0
Z
Z
E
GND
LOADING (Note a)
HIGH
LOW
PIN NAMES
S – S
E
Select Inputs
Enable (Active LOW) Input
Multiplexer Inputs
Multiplexer Output
Complementary Multiplexer Output
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
5 U.L.
0
2
I – I
0
7
Z
Z
5 U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 A HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 5 U.L. for Commercial (74) Temperature Ranges.
LOGIC SYMBOL
7 4
E I
3 2 1 15 14 13 12
I
1
I I I I I I
2 3 4 5 6 7
0
11
10
9
S
0
1
2
S
S
Z
6
Z
5
V
CC
= PIN 16
GND = PIN 8
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2
SN74LS151
LOGIC DIAGRAM
I
0
I
1
I
2
I
3
I
4
I
5
I
6
I
7
4
3
2
1
15
14
13
12
9
S
2
S
1
S
0
10
11
7
E
V
CC
= PIN 16
6
5
GND = PIN 8
= PIN NUMBERS
Z
Z
FUNCTIONAL DESCRIPTION
Z = E (I0 S0 S1 S2 + I1 S0 S1 S2 + I2 S0 S1 S2
+ I3 S0 S1 S2 + I4 S0 S1 S2 + I5 S0 S1 S2 + I6
S0 S1 S2 + I7 S0 S1 S2).
The LS151 is a logical implementation of a single pole,
8-position switch with the switch position controlled by the
state of three Select inputs, S , S , S . Both assertion and
0
1
2
The LS151 provides the ability, in one package, to select
from eight sources of data or control information. By proper
manipulation of the inputs, the LS151 can provide any logic
function of four variables and its negation.
negationoutputsareprovided. TheEnableinput(E)isactive
LOW. When it is not activated, the negation output is HIGH
and the assertion output is LOW regardless of all other
inputs. The logic function provided at the output is:
TRUTH TABLE
E
S
2
S
1
S
0
I
0
I
1
I
2
I
3
I
4
I
5
I
6
I
7
Z
Z
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
X
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
X
L
L
H
H
L
X
L
X
X
X
L
X
X
X
X
X
L
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
H
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
L
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
H
X
X
X
X
X
X
X
X
X
X
X
X
L
H
H
L
L
H
H
L
L
H
H
H
X
X
H
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
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3
SN74LS151
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Input HIGH Voltage
Unit
Test Conditions
Min
Typ
Max
Guaranteed Input HIGH Voltage for
All Inputs
V
V
2.0
V
IH
0.8
Guaranteed Input LOW Voltage for
All Inputs
Input LOW Voltage
V
IL
V
V
Input Clamp Diode Voltage
Output HIGH Voltage
–0.65
3.5
–1.5
V
V
V
V
= MIN, I = –18 mA
IN
IK
CC
2.7
= MIN, I = MAX, V = V
OH IN IH
OH
CC
or V per Truth Table
IL
V
V
= V MIN,
CC
0.25
0.35
0.4
0.5
V
V
I
I
= 4.0 mA
= 8.0 mA
CC
OL
V
Output LOW Voltage
Input HIGH Current
= V or V
IH
OL
IN
IL
per Truth Table
OL
20
0.1
µA
mA
mA
mA
mA
V
V
V
V
V
= MAX, V = 2.7 V
IN
CC
CC
CC
CC
CC
I
IH
= MAX, V = 7.0 V
IN
I
I
I
Input LOW Current
–0.4
–100
10
= MAX, V = 0.4 V
IL
IN
Short Circuit Current (Note 1)
Power Supply Current
–20
= MAX
= MAX
OS
CC
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (T = 25°C)
A
Limits
Symbol
Parameter
Propagation Delay
Unit
Test Conditions
Min
Typ
Max
t
t
27
18
43
30
PLH
ns
Select to Output Z
PHL
t
t
Propagation Delay
Select to Output Z
14
20
23
32
PLH
PHL
ns
ns
ns
ns
ns
t
t
Propagation Delay
Enable to Output Z
26
20
42
32
PLH
PHL
V
CC
= 5.0 V
C = 15 pF
L
t
t
Propagation Delay
Enable to Output Z
15
18
24
30
PLH
PHL
t
t
Propagation Delay
Data to Output Z
20
16
32
26
PLH
PHL
t
t
Propagation Delay
Data to Output Z
13
12
21
20
PLH
PHL
AC WAVEFORMS
V
IN
1.3 V
1.3 V
V
IN
1.3 V
t
1.3 V
t
t
PLH
t
PHL
PHL
PLH
V
OUT
V
OUT
1.3 V
1.3 V
1.3 V
1.3 V
Figure 1.
Figure 2.
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4
SN74LS151
PACKAGE DIMENSIONS
N SUFFIX
PLASTIC PACKAGE
CASE 648–08
ISSUE R
NOTES:
–A–
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
16
1
9
8
B
S
INCHES
DIM MIN MAX
0.740 0.770 18.80 19.55
MILLIMETERS
MIN MAX
F
A
B
C
D
F
C
L
0.250 0.270
0.145 0.175
0.015 0.021
6.35
3.69
0.39
1.02
6.85
4.44
0.53
1.77
0.040
0.70
SEATING
–T–
G
H
J
K
L
M
S
0.100 BSC
0.050 BSC
0.008 0.015
2.54 BSC
1.27 BSC
PLANE
K
M
0.21
0.38
3.30
7.74
10
H
J
0.110
0.295 0.305
10
0.020 0.040
0.130
2.80
7.50
0
G
D 16 PL
0
0.51
1.01
M
M
0.25 (0.010)
T A
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5
SN74LS151
PACKAGE DIMENSIONS
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B–05
ISSUE J
–A–
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
16
1
9
8
–B–
P 8 PL
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
M
S
0.25 (0.010)
B
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
G
MILLIMETERS
DIM MIN MAX
INCHES
MIN
MAX
0.393
0.157
0.068
0.019
0.049
F
A
B
C
D
F
9.80
3.80
1.35
0.35
0.40
10.00 0.386
4.00 0.150
1.75 0.054
0.49 0.014
1.25 0.016
R X 45
K
C
G
J
K
M
P
1.27 BSC
0.050 BSC
–T–
SEATING
PLANE
0.19
0.10
0
0.25 0.008
0.25 0.004
0.009
0.009
7
J
M
D
16 PL
7
0
5.80
0.25
6.20 0.229
0.50 0.010
0.244
0.019
M
S
S
0.25 (0.010)
T B
A
R
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6
SN74LS151
Notes
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7
SN74LS151
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SN74LS151/D
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