dm74ls48 National Semiconductor Corporation, dm74ls48 Datasheet

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dm74ls48

Manufacturer Part Number
dm74ls48
Description
7-segment Decoder
Manufacturer
National Semiconductor Corporation
Datasheet
C 1995 National Semiconductor Corporation
DM74LS48
BCD to 7-Segment Decoder
General Description
The ’LS48 translates four lines of BCD (8421) input data
into the 7-segment numeral code and provides seven corre-
sponding outputs having pull-up resistors as opposed to
totem pole pull-ups These outputs can serve as logic sig-
nals with a HIGH output corresponding to a lighted lamp
segment or can provide a 1 3 mA base current to npn lamp
Connection Diagram
TL F 10172
Order Number DM74LS48M or DM74LS48N
See NS Package Number M16A or N16E
Dual-In-Line Package
driver transistors Auxiliary inputs provide lamp test blank-
ing and cascadable zero-suppression functions
The ’LS48 decodes the input data in the pattern indicated in
the Truth Table and the segment identification illustration
TL F 10172– 1
RRD-B30M105 Printed in U S A
January 1992

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dm74ls48 Summary of contents

Page 1

... These outputs can serve as logic sig- nals with a HIGH output corresponding to a lighted lamp segment or can provide base current to npn lamp Connection Diagram Order Number DM74LS48M or DM74LS48N See NS Package Number M16A or N16E C 1995 National Semiconductor Corporation TL F 10172 ...

Page 2

... Characteristics’’ table are not guaranteed at the absolute maximum ratings 150 C a The ‘‘Recommended Operating Conditions’’ table will define the conditions for actual device operation DM74LS48 Min Nom Conditions Min ...

Page 3

Numerical Designations Resultant Displays Truth Table Decimal Or Function LT RBI A 0 (Note (Note ...

Page 4

Logic Diagram 10172– 3 ...

Page 5

... Physical Dimensions inches (millimeters) 16-Lead Small Outline Molded Package (M) Order Number DM74LS48M NS Package Number M16A 5 ...

Page 6

... Italiano National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Order Number DM74LS48N NS Package Number N16E 2 A critical component is any component of a life ...

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