M5165L-15 Integrated Circuit - DIP28 - OKI Semiconductor

MSM82C51A Integrated Circuit - DIP28 - OKI Semiconductor

HA12038 Integrated Circuit - DIP28 - Harris Semiconductor

28C64A-15 Integrated Circuit - DIP28 - OKI Semiconductor

MSM5836RS Integrated Circuit - DIP28 - OKI Semiconductor

CP82C59A5 Integrated Circuit - DIP28 - Harris Semiconductor

LA7007 Integrated Circuit - DIP28 - Sanyo Semiconductor

CY7C199-20PC Integrated Circuit - DIP28 - Cypress Semiconductor