July 1989 DM54LS450A DM74LS450 Multiplexer selects sixteen i

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July 1989 DM54LS450A DM74LS450 Multiplexer selects sixteen i

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DM54LS450A DM74LS450A Multiplexer
July 1989
DM54LS450A DM74LS450 Multiplexer
selects sixteen inputs through specified four binary inputs true data output inverted data Propagation delays same both inputs addresses specified loading Outputs conform standard totem pole drive standard
Features
24-pin SKINNYDIP saves space Similar 74150 (Fat Dip) current inputs reduce loading typical propagation delay
Connection Diagram
View
Function Table
Input Select Output
10228
Order Number DM54LS450AJ DM74LS450AJ DM74LS450AN DM74LS450AV Package Number J24F N24C V28A
C1995 National Semiconductor Corporation
10228
RRD-B30M115 Printed
Absolute Maximum Ratings (Note
Military Aerospace specified devices required please contact National Semiconductor Sales Office Distributors availability specifications Supply Voltage Input Voltage Off-State Output Voltage Input Current Output Current (IOL) Storage Temperature
(Note (Note (Note (Note
Ambient Temperature with Power Applied Junction Temperature with Power Applied Tolerance CZAP RZAP 1500X Test Method Human Body Model Test Specification SOP-5-028
2000V
Recommended Operating Conditons
Symbol Parameter Supply Voltage Operating Free-Air Temperature
Military
Commercial
Units
Electrical Characteristics Over Recommended Operating Conditions
Symbol Parameter Level Input Voltage (Note High Level Input Voltage (Note Input Clamp Voltage Level Input Current High Level Input Current Maximum Input Current Level Output Voltage High Level Output Voltage Output Short-Circuit Current (Note Supply Current Outputs Open
Test Conditions
Units
Note Absolute maximum ratings those values beyond which device permanently damaged Proper operation guaranteed outside specified recommended operating conditions Note Some device pins raised above these limits during programming operations according applicable specification Note These absolute voltages with respect ground device include overshoots system tester noise attempt test these values without suitable equipment Note avoid invalid readings other parameter tests preferable conduct test last minimize internal heating only output should shorted time with maximum duration second each Prolonged shorting high output raise chip temperature above normal permanent damage result
Switching Characteristics Over Operating Conditions
Symbol Parameter Input Output Test Conditions Military Commercial Units
Test Load
Test Waveform
Propagation Delay
10228 10228
Notes includes probe capacitance examples above phase relationships between inputs outputs have been chosen arbitrarily
Schematic Inputs Outputs
10228
Logic Diagram
LS450A
10228
Physical Dimensions inches (millimeters)
24-Pin Narrow Ceramic Dual-In-Line Package Order Number DM54LS450AJ DM74LS450AJ Package J24F
24-Pin Narrow Plastic Dual-In-Line Package Order Number DM74LS450AN Package N24C
DM54LS450A DM74LS450A Multiplexer
Physical Dimensions inches (millimeters) (Continued)
28-Lead Plastic Chip Carrier Order Number DM74LS450AV Package Number V28A
LIFE SUPPORT POLICY NATIONAL'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT NATIONAL SEMICONDUCTOR CORPORATION used herein Life support devices systems devices systems which intended surgical implant into body support sustain life whose failure perform when properly used accordance with instructions provided labeling reasonably expected result significant injury user
National Semiconductor Corporation 1111 West Bardin Road Arlington 76017 1(800) 272-9959 1(800) 737-7018
critical component component life support device system whose failure perform reasonably expected cause failure life support device system affect safety effectiveness
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National Semiconductor Japan 81-043-299-2309 81-043-299-2408
National does assume responsibility circuitry described circuit patent licenses implied National reserves right time without notice change said circuitry specifications

July 1989 DM54LS450A DM74LS450 Multiplexer selects sixteen i

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