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The DM7445N is a 16-pin DIP (dual in-line package) integrated circuit manufactured by National Semiconductor. It is a 4-bit magnitude comparator which compares two 4-bit binary or BCD (Binary Coded Decimal) words and provides a single output indicating which word is greater than, less than, or equal to the other. Features: * Low power consumption * TTL compatible inputs * Outputs can be used as logic inputs * Outputs can be used as open collector outputs Applications: * Digital thermometers * Digital voltmeters * Digital clocks * Digital counters * Digital comparators (For reference only)