MC54F521 series datasheets. Manufacturer: Motorola.

MC54F521J 8-bit identity comparator in 20-pin DIP package. Operational temperature range from -55°C to 125°C. Datasheet*) MC74F521DW 8-bit identity comparator in 20-pin SOIC package. Operational temperature range from -55°C to 125°C. Datasheet*) MC74F521N 8-bit identity comparator in 20-pin PDIP package. Operational temperature range from -55°C to 125°C. Datasheet*)

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