DS1235YW150 Integrated Circuit - DIP28 - Dallas Semiconductor

DS1643-150+ TIMEKEEPER INTEGRATED CIRCUIT DIP-28 ''UK COMPANY SINCE 1983 NIKKO''

MM74C917N Integrated Circuit - DIP28 - National Semiconductor - NSC

DS8881N Integrated Circuit - DIP28 - National Semiconductor - NSC

DS1397 Integrated Circuit - DIP28 - Dallas Semiconductor

DS1643-150+ TIMEKEEPER INTEGRATED CIRCUIT DIP-28 'UK COMPANY SINCE 1983 NIKKO''

LA9100 Integrated Circuit - DIP28 - Sanyo Semiconductor

DS1225Y Integrated Circuit - DIP28 - Dallas Semiconductor