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M5M27C128K - 128K-Bit CMOS Erasable and Electrically Reprogrammable ROM
M5M27C128K-3 - 128K-Bit CMOS Erasable and Electrically Reprogrammable ROM
M5M27C128K-2 - 128K-Bit CMOS Erasable and Electrically Reprogrammable ROM