NMC27C64 Datasheet PDF Index: Compare All Manufacturers

Manufacturer	Part Number	Description
National Semiconductor (now Texas Instruments)	NMC27C64	65536-Bit (8192 x 8) CMOS EPROM
Fairchild (now onsemi)	NMC27C64	65536-Bit (8192 x 8) CMOS EPROM