Integrated circuit 4-16 Line Decoder / Demultiplexer in 24 pin DIP (Dual inline package) used on many pinball machine circuit boards.
Reference:
Bally E-00620-0039Williams 5A-9010Stern 25A-DM74L154 location U25280-09010-0074LS154DM74L15474HCT154NSN74154N3