PIC16C54XT-P SemiConductor - DIP18 - Microchip Technology

PIC16C56XT-P SemiConductor - DIP18 - Microchip Technology

PIC16C54B04I-P SemiConductor - DIP18 - Microchip Technology

C2147 Semiconductor - DIP18 - Intel

MB81C1000A70P Integrated Circuit - DIP18 - Fairchild Semiconductor

PIC16C54RC-P SemiConductor - DIP18 - Microchip Technology

P8111-2 SemiConductor - DIP18 - Analog Devices - AMD

CAT22C10P30 Integrated Circuit - DIP18 - Catalyst Semiconductor - CSI