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National Semiconductor Electronic Components Datasheet

DM54LS450 Datasheet

16:1 Multiplexer

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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


National Semiconductor Electronic Components Datasheet

DM54LS450 Datasheet

16:1 Multiplexer

No Preview Available !

Absolute Maximum Ratings
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage VCC
Input Voltage
7V
5 5V
Off-State Output Voltage
Storage Temperature
5 5V
b65 to a150 C
Operating Conditions
Symbol
Parameter
VCC Supply Voltage
TA Operating Free-Air Temperature
Case temperature
Min
45
b55
Military
Nom
5
Max
55
125
Commercial
Min Nom Max
4 75 5 5 25
0 75
Units
V
C
Electrical Characteristics Over Operating Conditions
Symbol
Parameter
Test Conditions
Min
VIL Low-Level Input Voltage
VIH High-Level Input Voltage
2
VIC Input Clamp Voltage
VCCeMIN IIeb18 mA
IIL
Low-Level Input Current
VCCeMAX VIe0 4V
IIH
High-Level Input Current
VCCeMAX VIe2 4V
II
Maximum Input Current
VCCeMAX VIe5 5V
VCCeMIN
VOL
Low-Level Output Voltage
VILe0 8V
VIHe2V
IOLe8 mA
VOH
High-Level Output Voltage
VCCeMIN
VILe0 8V
VIHe2V
MIL
COM
IOHeb2 mA
IOHeb3 2 mA
24
IOS Output Short-Circuit Current VCCe5 0V
VOe0V
b30
ICC Supply Current
VCCeMAX
No more than one output should be shorted at a time and duration of the short-circuit should not exceed one second
All typical values are at VCCe5V TAe25 C
Typ
60
Max
08
b1 5
b0 25
25
1
Units
V
V
V
mA
mA
mA
05 V
V
b130
100
mA
mA
Switching Characteristics Over Operating Conditions
Symbol
tPD
Parameter
Any Input to Y or W
Test Conditions
(See Test Load)
CLe50 pF
R1e560X
R2e1 1kX
Military
Min Typ
25
Max
45
Commercial
Min Typ Max
25 40
Units
ns
2


Part Number DM54LS450
Description 16:1 Multiplexer
Maker National Semiconductor
Total Page 6 Pages
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