RS232 transceiver for low-voltage serial links
It handles data rates up to 460Kbps, which covers most legacy serial ports and many industrial terminal interfaces. The supply range of 2.25V to 3V means this part runs off a 2.5V or 3V rail directly — no extra regulator needed if your board already carries one of those. Receiver hysteresis of 300 mV gives clean signal recovery on noisy lines, a common headache on long cable runs inside a cabinet or between panels.
Where it fits on the board
Not rated for the engine bay or an unheated enclosure in winter.