What it is and where it fits
The Maxim MAX3221ECAE+ is a single RS-232 transceiver in a 16-SSOP package. It handles one driver and one receiver in full-duplex mode at 250 kbps.
Lifecycle and sourcing
It is ROHS3 compliant. If you need a second source or a pin-compatible alternate, the MAX3221ECAE (without the + suffix) is the same die in the same package — the + just marks lead-free finish, so it is a drop-in swap for existing BOMs.
