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National Semiconductor Electronic Components Datasheet


74F151APC

8-Input Multiplexer



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74F151APC pdf
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
74F151ASC (Note 1)
74F151ASJ (Note 1)
Military
54F151ADM (Note 2)
54F151AFM (Note 2)
54F151ALM (Note 2)
Package
Number
N16E
J16A
M16A
M16D
W16A
E20A
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
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
C1995 National Semiconductor Corporation TL F 9481
RRD-B30M115 Printed in U S A



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74F151APC pdf
Unit Loading Fan Out
Pin Names
Description
I0 – I7
S0 – S2
E
Z
Z
Data Inputs
Select Inputs
Enable Input (Active LOW)
Data Output
Inverted Data Output
54F 74F
UL
HIGH LOW
10 10
10 10
10 10
50 33 3
50 33 3
Input IIH IIL
Output IOH IOL
20 mA b0 6 mA
20 mA b0 6 mA
20 mA b0 6 mA
b1 mA 20 mA
b1 mA 20 mA
Functional Description
Truth Table
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 S0 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 in-
puts The logic function provided at the output is
Z e E  (I0 S2 S1 S0 a I1 S2 S1 S0 a I2 S2 S1 S0 a
I3 S2 S1 S0 a I4 S2 S1 S0 a I5 S2 S1 S0 a
I6 S2 S1 S0 a I7 S2 S1 S0)
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
Inputs
Outputs
E S2 S1 S0 Z Z
H X X X HL
L L L L I0 I0
L L L H I1 I1
L L H L I2 I2
L L H H I3 I3
L H L L I4 I4
L H L H I5 I5
L H H L I6 I6
L H H H I7 I7
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



Part Number 74F151APC
Description 8-Input Multiplexer
Maker National Semiconductor - National Semiconductor
Total Page 8 Pages
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