The 54H87DM is a TTL gate from the 54H series. It performs a basic gating function – AND, OR, NAND, NOR – depending on the internal configuration.
That suits prototype runs, repair benches, or small production batches where you don't want to commit to a full reel. If your pick-and-place line expects tape, you'll need to hand-place or find a tape-compatible variant.
Lifecycle – still in active production
That means it's still being manufactured – no last-time-buy clock ticking, no EOL notice to chase. No need to scramble for a substitute or stockpile.