MSM80C85AH-RS Integrated Circuit - DIP40 - OKI Semiconductor

CP82C37A12 Integrated Circuit - DIP40 - Harris Semiconductor

82C55A-2 Integrated Circuit - DIP40 - Intel

M82C55A-2 INTEGRATED CIRCUIT 82C55A2 DIP ''UK COMPANY SINCE1983 NIKKO''

TMP82C55AP-2 TOSHIBA INTEGRATED CIRCUIT DIP-40 ''UK COMPANY SINCE1983 NIKKO''

MSM77C20A89 Integrated Circuit - DIP28 - OKI Semiconductor

UPD82C55AC-2 INTEGRATED CIRCUIT DIP-40 NEC 'UK COMPANY SINCE 1983 NIKKO'

81C55 Integrated Circuit - DIP40 - OKI Semiconductor