DM74LS155 Datasheet Index: Compare All Manufacturers

Manufacturer	Part Number	Description
National Semiconductor (now Texas Instruments)	DM74LS155	Dual 2-Line to 4-Line Decoders/Demultiplexers
Fairchild (now onsemi)	DM74LS155	Dual 2-Line to 4-Line Decoders/Demultiplexers