UCC5696PNRG4 is a SCSI, LVD by Texas Instruments, 2.7V ~ 5.25V supply voltage, in 80-LQFP package, rated for 0°C ~ 70°C. This part is discontinued. FPGACenter specializes in sourcing obsolete components.
Z53C8003PSC is a SCSI by Zilog, 4.75V ~ 5.25V supply voltage, in 48-DIP (0.600", 15.24mm) package, rated for 0°C ~ 70°C. This part is discontinued. FPGACenter specializes in sourcing obsolete components.