Maxim MAX3483 RS-485 transceiver

This device is part of a family of RS-458, slew-rate limited transceivers. This particular variation is in an 8-pin DIP and a half-duplex variation (e.g., RS-485 vs. RS-422 with separate TX and RX pairs). It has transmit enable (to drive the RS-485 bus) and receive enable (to enable the receiver) pins.

It can run from a 3.3v power supply, and can withstand 12v on the RS-485 bus.

Full data sheet is here.