What the MAX3480EAEPI+ is and where it fits
The Maxim Integrated MAX3480EAEPI+ is a half-duplex RS-422/RS-485 transceiver in a 28-pin PDIP package. It handles one driver and one receiver on a single serial bus, with a data rate of 250 kbps and receiver hysteresis of 70 mV. The part operates from a 3.0V to 3.6V supply, which makes it a direct fit for 3.3V logic systems without level translation. The industrial temperature range of -40°C to 85°C covers factory-floor automation, outdoor telecom cabinets, and HVAC controller backplanes. The through-hole 28-DIP package suits prototyping, legacy board repairs, and environments where vibration resistance from a soldered DIP is preferred over a socketed SOIC.
3.3V supply and 70 mV hysteresis
The 3.0V to 3.6V supply range means the MAX3480EAEPI+ runs directly from a 3.3V rail — no 5V-to-3.3V regulator needed. The 70 mV receiver hysteresis provides noise immunity on long cable runs.
Lifecycle and sourcing reality
The MAX3480EAEPI+ is listed as Active and RoHS3 compliant. There is no NRND or EOL flag, so it remains a safe choice for new designs and production replenishment. No stock or price figures are published here — the RFQ process is the correct channel for current supply terms.