RS-232 full-duplex transceiver for serial links
The Maxim MAX3223ECTP+ is a full-duplex RS-232 transceiver integrating two drivers and two receivers in a single 20-TQFN (5x5) package. It handles 250kbps data rate over a 3V to 5.5V supply range, making it a straightforward drop-in for legacy serial ports or new designs needing a compact interface IC. The 500 mV receiver hysteresis provides noise immunity on the RX lines, useful in electrically noisy environments like industrial control panels or point-of-sale terminals. Operating temperature is 0°C to 70°C, so this is a commercial-grade part — not rated for automotive or extended industrial ambient.
Active lifecycle — no LTB risk
The MAX3223ECTP+ carries an Active product status and is ROHS3 compliant. No end-of-life notice or last-time-buy window has been issued, so it remains a safe choice for new production builds and BOM continuity.