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Datasheet Replacement Marking Code
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25LC128
DM74ALS521W (2)DM74ALS521 (3)DM74ALS52 (11)DM74ALS5 (49)DM74ALS (272)DM74A (398)DM74 (459)DM7 (467)
Fairchild Semiconductor

DM74ALS521WM

Magnitude Comparator 8 Bit Active Low Output A=B 20-SOIC
Fairchild Semiconductor

DM74ALS521WMX

Magnitude Comparator 8 Bit Active Low Output A=B 20-SOIC
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