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DM74LS450 Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer DM74LS450
Beschreibung 16:1 Multiplexer
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 6 Seiten
DM74LS450 Datasheet, Funktion
PRELIMINARY
July 1989
DM54LS450 DM74LS450 16 1 Multiplexer
General Description
The 16 1 Mux selects one of sixteen inputs E0 through E15
specified by four binary select inputs A B C and D The
true data is output on Y and the inverted data on W Propa-
gation delays are the same for both inputs and addresses
and are specified for 50 pF loading Outputs conform to the
standard 8 mA LS totem pole drive standard
Features Benefits
Y 24-pin SKINNYDIP saves space
Y Similar to 74150 (Fat DIP)
Y Low current PNP inputs reduce loading
Connection Diagram
Standard Test Load
Top View
TL L 8338 – 2
TL L 8338 – 1
Order Number DM54LS450J DM74LS450J
DM74LS450N or DM74LS450V
See NS Package Number J24F N24C or V28A
Function Table
D
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
C1995 National Semiconductor Corporation TL L 8338
Input
Select
CB
LL
LL
LH
LH
HL
HL
HH
HH
LL
LL
LH
LH
HL
HL
HH
HH
A
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
Output
WY
E0 E0
E1 E1
E2 E2
E3 E3
E4 E4
E5 E5
E6 E6
E7 E7
E8 E8
E9 E9
E10 E10
E11 E11
E12 E12
E13 E13
E14 E14
E15 E15
RRD-B30M115 Printed in U S A






DM74LS450 Datasheet, Funktion
Physical Dimensions inches (millimeters) (Continued)
28-Lead Plastic Chip Carrier (V)
Order Number DM74LS450V
NS Package Number V28A
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION As used herein
1 Life support devices or systems are devices or
systems which (a) are intended for surgical implant
into the body or (b) support or sustain life and whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling can
be reasonably expected to result in a significant injury
to the user
2 A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system or to affect its safety or
effectiveness
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