The MAX3221EIPW is a 3 to 5.5V single-channel RS-232 Line Driver/Receiver features one driver and one receiver. This driver/receiver operates with 3 to 5.5V VCC supply and It has auto-power down feature which automatically disables drivers for power savings. Accepts 5V logic input with 3.3V supply.
Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards