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54F 74F151A 8-Input Multiplexer
November 1994
54F 74F151A
8-Input Multiplexer
General Description
The ’F151A is a high-speed 8-input digital multiplexer It pro-
vides in one package the ability to select one line of data
from up to eight sources The ’F151A can be used as a
universal function generator to generate any logic function
of four variables Both assertion and negation outputs are
provided
Commercial
74F151APC
Military
Package
Number
N16E
Package Description
16-Lead (0 300 Wide) Molded Dual-In-Line
16-Lead Ceramic Dual-In-Line
16-Lead (0 150 Wide) Molded Small Outline JEDEC
16-Lead (0 300 Wide) Molded Small Outline EIAJ
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
54F151ADM (Note 2)
74F151ASC (Note 1)
74F151ASJ (Note 1)
54F151AFM (Note 2)
54F151ALM (Note 2)
J16A
M16A
M16D
W16A
E20A
Note 1
Devices also available in 13 reel Use suffix
e
SCX and SJX
Note 2
Military grade device with environmental and burn-in processing Use suffix
e
DQMB FMQB and LMQB
Logic Symbols
Connection Diagrams
Pin Assignment for DIP
SOIC and Flatpak
Pin Assignment
for LCC
TL F 9481–3
IEEE IEC
TL F 9481 – 1
TL F 9481 – 2
TL F 9481–5
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 9481
RRD-B30M115 Printed in U S A
Unit Loading Fan Out
54F 74F
Pin Names
Description
UL
HIGH LOW
10 10
10 10
10 10
50 33 3
50 33 3
Input I
IH
I
IL
Output I
OH
I
OL
20
mA
b
0 6 mA
20
mA
b
0 6 mA
20
mA
b
0 6 mA
b
1 mA 20 mA
b
1 mA 20 mA
I
0
–I
7
S
0
–S
2
E
Z
Z
Data Inputs
Select Inputs
Enable Input (Active LOW)
Data Output
Inverted Data Output
Functional Description
The ’F151A is a logic implementation of a single pole 8-po-
sition switch with the switch position controlled by the state
of three Select inputs S
0
S
1
S
2
Both assertion and nega-
tion outputs are provided The Enable input (E) is active
LOW When it is not activated the negation output is HIGH
and the assertion output is LOW regardless of all other in-
puts The logic function provided at the output is
Z
e
E
(I
0
S
2
S
1
S
0
a
I
1
S
2
S
1
S
0
a
I
2
S
2
S
1
S
0
a
I
3
S
2
S
1
S
0
a
I
4
S
2
S
1
S
0
a
I
5
S
2
S
1
S
0
a
I
6
S
2
S
1
S
0
a
I
7
S
2
S
1
S
0
)
The ’F151A provides the ability in one package to select
from eight sources of data or control information By proper
manipulation of the inputs the ’F151A can provide any logic
function of four variables and its negation
Truth Table
Inputs
E
H
L
L
L
L
L
L
L
L
S
2
X
L
L
L
L
H
H
H
H
S
1
X
L
L
H
H
L
L
H
H
S
0
X
L
H
L
H
L
H
L
H
Outputs
Z
H
I
0
I
1
I
2
I
3
I
4
I
5
I
6
I
7
Z
L
I
0
I
1
I
2
I
3
I
4
I
5
I
6
I
7
H
e
HIGH Voltage Level
L
e
LOW Voltage Level
X
e
Immaterial
Logic Diagram
TL F 9481 – 4
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays
2
Absolute Maximum Ratings
(Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Storage Temperature
Ambient Temperature under Bias
Junction Temperature under Bias
Plastic
V
CC
Pin Potential to
Ground Pin
b
65 C to
a
150 C
b
55 C to
a
125 C
b
55 C to
a
175 C
b
55 C to
a
150 C
b
0 5V to
a
7 0V
Recommended Operating
Conditions
Free Air Ambient Temperature
Military
Commercial
Supply Voltage
Military
Commercial
b
55 C to
a
125 C
0 C to
a
70 C
a
4 5V to
a
5 5V
a
4 5V to
a
5 5V
b
0 5V to
a
7 0V
Input Voltage (Note 2)
b
30 mA to
a
5 0 mA
Input Current (Note 2)
Voltage Applied to Output
in HIGH State (with V
CC
e
0V)
b
0 5V to V
CC
Standard Output
b
0 5V to
a
5 5V
TRI-STATE Output
Current Applied to Output
in LOW State (Max)
twice the rated I
OL
(mA)
Note 1
Absolute maximum ratings are values beyond which the device may
be damaged or have its useful life impaired Functional operation under
these conditions is not implied
Note 2
Either voltage limit or current limit is sufficient to protect inputs
DC Electrical Characteristics
Symbol
V
IH
V
IL
V
CD
V
OH
Parameter
Min
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH
Voltage
Output LOW
Voltage
Input HIGH
Current
Input HIGH Current
Breakdown Test
Output HIGH
Leakage Current
Input Leakage
Test
Output Leakage
Circuit Current
Input LOW Current
Output Short-Circuit Current
Power Supply Current
b
60
54F 74F
Typ
Max
Units
V
08
b
1 2
V
CC
Conditions
Recognized as a HIGH Signal
Recognized as a LOW Signal
20
V
V
V
Min
Min
I
IN
e b
18 mA
I
OH
e b
1 mA
I
OH
e b
1 mA
I
OH
e b
1 mA
I
OL
e
20 mA
I
OL
e
20 mA
V
IN
e
2 7V
V
IN
e
7 0V
V
OUT
e
V
CC
I
ID
e
1 9
mA
All Other Pins Grounded
V
IOD
e
150 mV
All Other Pins Grounded
V
IN
e
0 5V
V
OUT
e
0V
V
O
e
HIGH
54F 10% V
CC
74F 10% V
CC
74F 5% V
CC
54F 10% V
CC
74F 10% V
CC
54F
74F
54F
74F
54F
74F
74F
74F
25
25
27
05
05
20 0
50
100
70
250
50
4 75
3 75
b
0 6
b
150
V
OL
I
IH
I
BVI
I
CEX
V
ID
I
OD
I
IL
I
OS
I
CC
V
mA
mA
mA
V
mA
mA
mA
mA
Min
Max
Max
Max
00
00
Max
Max
Max
13 5
21 0
3
AC Electrical Characteristics
74F
Symbol
Parameter
Min
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Propagation Delay
S
n
to Z
Propagation Delay
S
n
to Z
Propagation Delay
E to Z
Propagation Delay
E to Z
Propagation Delay
I
n
to Z
Propagation Delay
I
n
to Z
40
32
45
40
30
30
50
35
30
15
30
37
T
A
e a
25 C
V
CC
e a
5 0V
C
L
e
50 pF
Typ
62
52
75
62
47
44
70
53
48
25
48
55
Max
90
75
10 5
90
61
60
95
70
65
40
65
70
54F
T
A
V
CC
e
Mil
C
L
e
50 pF
Min
35
30
45
40
30
25
40
30
25
15
25
35
Max
11 5
80
13 5
95
75
65
12 0
80
75
60
85
90
74F
T
A
V
CC
e
Com
C
L
e
50 pF
Min
35
32
45
40
30
25
40
30
30
15
25
37
Max
95
75
12 0
90
70
60
10 5
75
70
50
75
75
ns
ns
ns
ns
ns
ns
Units
Ordering Information
74F
Temperature Range Family
74F
e
Commercial
54F
e
Military
Device Type
Package Code
P
e
Plastic DIP
D
e
Ceramic DIP
F
e
Flatpak
L
e
Leadless Chip Carrier (LCC)
S
e
Small Outline SOIC JEDEC
SJ
e
Small Outline SOIC EIAJ
151A
S
C
X
Special Variations
QB
e
Military grade device with
environmental and burn-in
processing
X
e
Devices shipped in 13 reel
Temperature Range
C
e
Commercial (0 C to
a
70 C)
M
e
Military (
b
55 C to
a
125 C)
4
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