DM74LS48N Datasheet
BCD To 7-Segment Decoder
Download: DM74LS48N Datasheet 
DM74LS48N
BCD To 7-Segment Decoder
DM74LS48 BCD to 7-Segment Decoder
January 1992
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 Corresponding Outputs Having Pull-up Resistors As Opposed To Totem Pole Pull-ups
These Outputs Can Serve As Logic Signals With A High Output Corresponding To A Lighted Lamp Segment
or can provide a 1 3 mA base current to npn lamp
Driver Transistors Auxiliary Inputs Provide Lamp Test Blanking And Cascadable Zero-suppression
functions
The 'ls48 Decodes The Input Data In The Pattern Indicated In The Truth Table And The Segment
identification illustration
Connection Diagram
Dual-In-Line Package
TL F 10172 - 1
Order Number DM74LS48M or DM74LS48N See NS Package Number M16A or N16E
C1995 National Semiconductor Corporation TL F 10172
RRD-B30M105 Printed in
Absolute
MAXIMUM RATINGS (Note)
Supply Voltage
Input Voltage
Operating Free Air Temperature Range DM74LS
0 C to a70 C
Storage Temperature Range
b65 C to a150 C
Recommended Operating Conditions
Note The ''Absolute
Maximum Ratings'' Are Those Values Beyond Which The Safety Of The Device Cannot Be Guaranteed The
Device Should Not Be Operated At These Limits The Parametric Values Defined In The ''electrical
Characteristics'' table are not guaranteed at the absolute