SN74154N 4 to 16 Line Decoder Demultiplexer 24 Pin
DIP (Dual inline package) used on many pinball machine circuit boards for the display circuit
Bally #E-00620-0039
Williams #5A-9010, #5280-09010-00
Stern #25A-DM74L154 location U2
#74LS154
#DM74L154
#74HCT154N