MT42C4064-12 Integrated Circuit - DIP24 - MT

MC33035PG Integrated Circuit - DIP24 - ON Semiconductor

HBF4039AE Integrated Circuit - DIP24 - SGS Thomson

CDM6116AE9 Integrated Circuit - DIP24 - Generic Make

PAL20R4BNC Integrated Circuit - DIP24 - National Semiconductor - NSC

LM1246AAC Integrated Circuit - DIP24 - National Semiconductor - NSC

PAL20L8BNC Integrated Circuit - DIP24 - National Semiconductor - NSC

ADM239LAN Integrated Circuit - DIP24 - Analog Devices - AMD