Device identity and logic family
The SN74LS28DR is a quad 2-input NOR gate from Texas Instruments' LS (Low-Power Schottky) TTL series, a workhorse logic family for 5 V systems where speed and power balance matter. It sits in the Logic ICs category and is supplied in Bulk packaging, which means it arrives as loose devices rather than tape-and-reel — a detail that matters for hand-assembly or low-volume prototyping where a pick-and-place feeder is not available.
This is typical for legacy LS TTL devices and must be factored into any RoHS-exempt or military/industrial BOM where leaded solder is permitted.
Sourcing and ordering posture
Because the Bulk package differs from the tape-and-reel variant (SN74LS28D), confirm the exact ordering code suffix with your procurement team before committing the line item.