CALIFORNIA WARNING: This product can expose you to chemicals, including lead and DEHP, which are known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information, go to https://www.p65warnings.ca.gov.
Integrated circuit Dual 2 to 4 Decoder/Demultiplexer 16 pin DIP used on many pinball machine circuit boards.
Reference:
E-620-168
74LS155
SN74LS155N
SN74LS155AN
74155