DM54LS471 series datasheets. Manufacturer: National Semiconductor.

DM54LS471J 70 ns, (256 x 8) 2048-bit TTL PROM in 20-pin DIP package. Operational temperature range from -55°C to 125°C. Datasheet*) DM74LS471J 60 ns, (256 x 8) 2048-bit TTL PROM in 20-pin DIP package. Operational temperature range from 0°C to 70°C. Datasheet*) DM74LS471N 60 ns, (256 x 8) 2048-bit TTL PROM in 20-pin DIP package. Operational temperature range from 0°C to 70°C. Datasheet*) DM74LS471V 60 ns, (256 x 8) 2048-bit TTL PROM in 20-pin PLCC package. Operational temperature range from 0°C to 70°C. Datasheet*)

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