3 Mbps full-duplex RS232 transceiver in a 5x5 TQFN
The MAX13237EETE+T is a single-channel RS232 transceiver from Analog Devices that runs at 3 Mbps in full-duplex mode — fast enough for most industrial serial links and well above the 115.2 kbps ceiling of legacy UARTs. The 1/1 driver/receiver count means one TX and one RX line, so it maps directly to a standard DB9 serial port without external muxing.
Supply and temperature envelope
The supply range spans 3V to 5.5V, letting it run from a 3.3V rail or a legacy 5V bus without a separate regulator.
The 500 mV receiver hysteresis filters out noise on long cable runs — a practical margin for RS232 links that see ground shifts in industrial environments.