There is no official L* successor listed in the record, so a pin-compatible alternate is the typical path forward.
What this RS-232 transceiver does
Where it is used
RS-232 transceivers of this class are found in serial COM ports on industrial controllers, point-of-sale terminals, telecom equipment, and legacy instrumentation. The 2/2 driver/receiver count suits applications needing one full-duplex port plus one additional channel, such as a debug console alongside a primary data link.
Supply voltage and data rate — the practical fit
The 500 kbps rating is the maximum; actual throughput depends on cable length and capacitive load.
Pin-compatible replacement search
Because the MAX3222ECPW is obsolete, the most practical fix is finding a pin-compatible RS-232 transceiver in the same 20-TSSOP footprint. Texas Instruments' MAX3222E family includes several variants; the key difference is often the temperature grade (industrial vs commercial) and data rate. The MAX3222ECPW is the commercial-temperature (0°C to 70°C) variant. A direct replacement would need the same 2/2 driver/receiver count, same supply range, and same package. The base part number MAX3222E (without the 'C') is the industrial-temperature version and may be a functional alternate, but verify the pinout matches — TI sometimes changes pin assignments across temperature grades.