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 prov
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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
C
DM74LS48 Datasheet
