The 44-SOJ package (10.16 mm body width) is a J-lead surface-mount footprint — it takes less board area than a DIP but requires a hot-air rework station for removal. The J-lead also gives better thermal cycling reliability than a gull-wing in high-vibration environments. Store the reels dry: SOJ packages are moisture-sensitive, and the Tape & Reel cut tape needs a dry cabinet if the seal is broken.
The ROHS3 compliance is on record. For dual-sourcing, the CY7C1041GN30-10ZSXIT is a functional equivalent — same 4Mbit density, 10 ns access time, 256K x 16 organization, and industrial temperature range — but packaged in a different 44-pin SOJ variant (ZSX suffix). Verify the footprint matches your board before substituting. The CY7C1041G30-10BAJXE extends the temperature range to -40°C to 125°C for extended-environment designs, though it ships in tray rather than tape-and-reel.