SN54LS153JD [MOTOROLA]
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| 型号： | SN54LS153JD |
| 厂家： | 
MOTOROLA |
| 描述： | 暂无描述 复用器 输入元件 |
| 文件： | 总5页 (文件大小：162K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54/74LS153
DUAL 4-INPUT MULTIPLEXER
The LSTTL/MSI SN54/74LS153 is a very high speed Dual 4-Input
Multiplexer with common select inputs and individual enable inputs for each
section. It can select two bits of data from four sources. The two buffered
outputs present data in the true (non-inverted) form. In addition to multiplexer
operation, the LS153 can generate any two functions of three variables. The
LS153isfabricatedwiththeSchottkybarrierdiodeprocessforhighspeedand
is completely compatible with all Motorola TTL families.
DUAL 4-INPUT MULTIPLEXER
LOW POWER SCHOTTKY
• Multifunction Capability
• Non-Inverting Outputs
• Separate Enable for Each Multiplexer
• Input Clamp Diodes Limit High Speed Termination Effects
CONNECTION DIAGRAM DIP (TOP VIEW)
J SUFFIX
CERAMIC
CASE 620-09
16
1
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
N SUFFIX
PLASTIC
CASE 648-08
16
1
PIN NAMES
LOADING (Note a)
HIGH
LOW
D SUFFIX
SOIC
CASE 751B-03
S
E
Common Select Input
Enable (Active LOW) Input
Multiplexer Inputs
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
0
16
I , I
1
0
1
Z
Multiplexer Output (Note b)
5 (2.5) U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
ORDERING INFORMATION
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
Temperature Ranges.
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXD SOIC
LOGIC DIAGRAM
LOGIC SYMBOL
FAST AND LS TTL DATA
5-257
SN54/74LS153
FUNCTIONAL DESCRIPTION
The LS153 is a Dual 4-input Multiplexer fabricated with Low
Power, Schottky barrier diode process for high speed. It can
selecttwobitsofdatafromuptofoursourcesunderthecontrol
Z = E (I
S
S
S + I
1a
S
S )
0
S + I
S
S
S +
0
a
a
0a
1
0
1
0
2a
1
I
S
3a
1
of the common Select Inputs (S , S ). The two 4-input multi-
Z = E (I
S + I
S
S )
S + I
S +
0
0
1
b
b
0b
1
0
1b
1 0
1
0
2b
1
plexer circuits have individual active LOW Enables (E , E )
I
3b
S
a
b
which can be used to strobe the outputs independently. When
theEnables(E ,E )areHIGH,thecorrespondingoutputs(Z ,
The LS153 can be used to move data from a group of regis-
ters to a common output bus. The particular register from
which the data came would be determined by the state of the
Select Inputs. A less obvious application is a function genera-
tor. The LS153 can generate two functions of three variables.
This is useful for implementing highly irregular random logic.
a
b
a
Z ) are forced LOW.
b
The LS153 is the logic implementation of a 2-pole, 4-posi-
tion switch, where the position of the switch is determined by
the logic levels supplied to the two Select Inputs. The logic
equations for the outputs are shown below.
TRUTH TABLE
SELECT INPUTS
INPUTS (a or b)
OUTPUT
Z
S
0
S
1
E
I
0
I
1
I
2
I
3
X
L
L
H
H
L
L
H
H
X
L
L
L
L
H
H
H
H
H
L
L
L
L
L
L
L
L
X
L
X
X
X
L
H
X
X
X
X
X
X
X
X
X
L
H
X
X
X
X
X
X
X
X
X
L
L
L
H
L
H
L
H
L
H
X
X
X
X
X
X
H
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
V
CC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
T
A
Operating Ambient Temperature Range
54
74
–55
0
25
25
125
70
°C
I
I
Output Current — High
Output Current — Low
54, 74
–0.4
mA
mA
OH
54
74
4.0
8.0
OL
FAST AND LS TTL DATA
5-258
SN54/74LS153
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
2.0
V
IH
54
74
0.7
0.8
Guaranteed Input LOW Voltage for
All Inputs
V
V
V
Input LOW Voltage
V
IL
Input Clamp Diode Voltage
Output HIGH Voltage
–0.65
3.5
–1.5
V
V
V
V
V
= MIN, I = –18 mA
IN
IK
CC
54
74
2.5
2.7
= MIN, I
OH
= MAX, V = V
IN
CC
IH
OH
or V per Truth Table
IL
3.5
V
V
= V
CC
MIN,
= V or V
IL IH
54, 74
74
0.25
0.35
0.4
0.5
V
V
I
I
= 4.0 mA
= 8.0 mA
CC
IN
OL
V
Output LOW Voltage
Input HIGH Current
OL
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
IN
IL
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
Typ
Symbol
Parameter
Propagation Delay
Unit
Test Conditions
Min
Max
t
t
10
17
15
26
PLH
PHL
ns
Figure 2
Figure 1
Figure 2
Data to Output
t
t
Propagation Delay
Select to Output
19
25
29
38
V
= 5.0 V
PLH
PHL
CC
= 15 pF
ns
ns
C
L
t
t
Propagation Delay
Enable to Output
16
21
24
32
PLH
PHL
AC WAVEFORMS
Figure 1
Figure 2
FAST AND LS TTL DATA
5-259
Case 751B-03 D Suffix
16-Pin Plastic
SO-16
-A-
16
1
9
8
P
C
-B-
R X 45°
G
-T-
J
M
F
D
°
°
°
°
K
Case 648-08 N Suffix
16-Pin Plastic
-A-
16
1
9
B
S
8
F
L
C
K
-T-
M
H
J
G
D
°
°
°
°
Case 620-09 J Suffix
16-Pin Ceramic Dual In-Line
-A-
16
9
-B-
1
8
L
C
-T-
K
M
N
E
J
F
G
D
°
°
°
°
FAST AND LS TTL DATA
5-260
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