MP7529BJN Integrated Circuit - DIP20 - Micro Power Systems (MPS)

HY534256S70 Integrated Circuit - DIP20 - Hyundai

MC54HC273AJ Integrated Circuit - DIP20 - Motorola Semiconductor

HYB514256B60 Integrated Circuit - DIP20 - Siemens Semiconductors

54F533DMQB Integrated Circuit - DIP20 - Generic Make

DM81LS96AN Integrated Circuit - DIP20 - National Semiconductor - NSC

AM25LS2537PC Integrated Circuit - DIP20 - Analog Devices - AMD

AN3331K Integrated Circuit - DIP20 - Matsushita Electronics