40 ns access time — timing margin for 5V buses
The 63S281ANL: The 40 ns access time means the PROM can present valid data within 40 ns of the address being stable.
Active lifecycle — no obsolescence risk
This part is listed as Active in production. No last-time-buy or end-of-life notice is in effect. For BOM planning, this means the 63S281ANL remains available through the independent distribution channel without the timeline pressure of a phase-out. RoHS non-compliant — verify your assembly's exemption allowance for lead-bearing solder if the application requires it.
Package and handling note
Supplied in Bulk (tubes or trays), not tape-and-reel. For pick-and-place lines, you will need to transfer to a feeder-compatible carrier or hand-place. The 20-PLCC J-Lead footprint matches standard PLCC-20 land patterns; the 9x9 mm body fits sockets as well as soldered joints. The 0°C to 75°C commercial range limits this part to indoor, temperature-controlled environments — not suitable for industrial or automotive under-hood use without additional thermal management.