NSC 54F151AMW8, 54F151ALMQB, 54F151AFMQB, 54F151ADMQB, 54F151ADC Datasheet
TL/F/9481
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 provides 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 Military
Package
Package Description
Number
74F151APC N16E 16-Lead (0.300×Wide) Molded Dual-In-Line
54F151ADM (Note 2) J16A 16-Lead Ceramic Dual-In-Line
74F151ASC (Note 1) M16A 16-Lead (0.150×Wide) Molded Small Outline, JEDEC
74F151ASJ (Note 1) M16D 16-Lead (0.300×Wide) Molded Small Outline, EIAJ
54F151AFM (Note 2) W16A 16-Lead Cerpack
54F151ALM (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier, Type C
Note 1: Devices also available in 13×reel. Use suffixeSCX and SJX.
Note 2: Military grade device with environmental and burn-in processing. Use suffix
e
DQMB, FMQB and LMQB.
Logic Symbols Connection Diagrams
TL/F/9481– 3
IEEE/IEC
TL/F/9481– 5
Pin Assignment for DIP,
SOIC and Flatpak
TL/F/9481– 1
Pin Assignment
for LCC
TL/F/9481– 2
TRI-STATEÉis a registered trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.
Unit Loading/Fan Out
54F/74F
Pin Names Description
U.L. Input I
IH/IIL
HIGH/LOW Output IOH/I
OL
I0–I
7
Data Inputs 1.0/1.0 20 mA/b0.6 mA
S
0–S2
Select Inputs 1.0/1.0 20 mA/b0.6 mA
E
Enable Input (Active LOW) 1.0/1.0 20 mA/b0.6 mA
Z Data Output 50/33.3
b
1 mA/20 mA
Z
Inverted Data Output 50/33.3
b
1 mA/20 mA
Functional Description
The ’F151A is a logic implementation of a single pole, 8-position switch with the switch position controlled by the state
of three Select inputs, S
0,S1,S2
. 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 inputs. The logic function provided at the output is:
Z
e
E#(I0S2S1S
0
a
I1S2S1S
0
a
I2S2S1S
0
a
I3S2S1S
0
a
I4S2S1S
0
a
I5S2S1S
0
a
I6S2S1S
0
a
I7S2S1S0)
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 Outputs
E S
2
S
1
S
0
Z Z
HXXXHL
LLLLI
0
I
0
LLLHI
1
I
1
LLHLI
2
I
2
LLHHI
3
I
3
LHL LI
4
I
4
LHLHI
5
I
5
LHH LI
6
I
6
LHHHI
7
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
b
65§Ctoa150§C
Ambient Temperature under Bias
b
55§Ctoa125§C
Junction Temperature under Bias
b
55§Ctoa175§C
Plastic
b
55§Ctoa150§C
V
CC
Pin Potential to
Ground Pin
b
0.5V toa7.0V
Input Voltage (Note 2)
b
0.5V toa7.0V
Input Current (Note 2)
b
30 mA toa5.0 mA
Voltage Applied to Output
in HIGH State (with V
CC
e
0V)
Standard Output
b
0.5V to V
CC
TRI-STATEÉOutput
b
0.5V toa5.5V
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.
Recommended Operating
Conditions
Free Air Ambient Temperature
Military
b
55§Ctoa125§C
Commercial 0
§
Ctoa70§C
Supply Voltage
Military
a
4.5V toa5.5V
Commercial
a
4.5V toa5.5V
DC Electrical Characteristics
Symbol Parameter
54F/74F
Units V
CC
Conditions
Min Typ Max
V
IH
Input HIGH Voltage 2.0 V Recognized as a HIGH Signal
V
IL
Input LOW Voltage 0.8 V Recognized as a LOW Signal
V
CD
Input Clamp Diode Voltage
b
1.2 V Min I
IN
eb
18 mA
V
OH
Output HIGH 54F 10% V
CC
2.5 I
OH
eb
1mA
Voltage 74F 10% V
CC
2.5 V Min I
OH
eb
1mA
74F 5% V
CC
2.7 I
OH
eb
1mA
V
OL
Output LOW 54F 10% V
CC
0.5
V Min
I
OL
e
20 mA
Voltage 74F 10% V
CC
0.5 I
OL
e
20 mA
I
IH
Input HIGH 54F 20.0
mA Max
V
IN
e
2.7V
Current 74F 5.0
I
BVI
Input HIGH Current 54F 100
mA Max
V
IN
e
7.0V
Breakdown Test 74F 7.0
I
CEX
Output HIGH 54F 250
mA Max
V
OUT
e
V
CC
Leakage Current 74F 50
V
ID
Input Leakage
74F 4.75 V 0.0
I
ID
e
1.9 mA
Test All Other Pins Grounded
I
OD
Output Leakage
74F 3.75 mA 0.0
V
IOD
e
150 mV
Circuit Current All Other Pins Grounded
I
IL
Input LOW Current
b
0.6 mA Max V
IN
e
0.5V
I
OS
Output Short-Circuit Current
b
60
b
150 mA Max V
OUT
e
0V
I
CC
Power Supply Current 13.5 21.0 mA Max V
O
e
HIGH
3
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