Digital transmission interface controller in 28-PLCC
The Intel N29C53AC is a digital transmission interface controller in a 28-PLCC surface-mount package, designed for controller applications in DC-DC power module contexts.
Supply rail and package fit
The 4.75V-5.25V supply range means the N29C53AC runs from a regulated 5V rail with ±5% tolerance — typical for a backplane or control card that already carries a 5V bus. Housed in a 28-PLCC (JEDEC MO-047), the surface-mount footprint saves board area compared to the through-hole P29C53AC in the same 28-pin count but with a different mounting style. The PLCC package suits reflow assembly and is common in mid-1990s Intel interface controllers; the 28-lead count limits I/O to address and data bus signals for the transmission interface.
Lifecycle and compliance flag
Note that the part is RoHS non-compliant, which may restrict its use in new EU-market designs or applications requiring lead-free solder per RoHS directive exemptions.