SN74ALS521 comparators equivalent, 8-bit identity comparators.
These identity comparators perform comparisons on two 8-bit binary or BCD words. The SN74ALS518 provides P = Q outputs, while the ′ALS520 and SN74ALS521 provide P = Q outputs. The SN74ALS518 has an open-collector output. The SN74ALS518 and ′ALS520 f.
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