What this Maxim RS-485 transceiver brings to the bus
The Maxim Integrated MAX14858GWE+ is a full-duplex RS-422/RS-485 transceiver in a 16-SOIC package, carrying one driver and one receiver on a single 1.71 V to 5.5 V supply rail. It pushes 25 Mbps on the bus, which puts it in the high-speed tier for industrial serial links — think encoder feedback, motor-drive comms, or multi-drop sensor networks where the update rate needs to stay tight. The 20 mV of receiver hysteresis cleans up noise on long cable runs without external filtering.
Supply voltage flexibility — one part for 1.8 V, 3.3 V, or 5 V rails
The 1.71 V to 5.5 V supply range means this transceiver can sit on a 1.8 V logic bus without a level shifter, or run straight from a 5 V industrial supply. That flexibility simplifies BOM consolidation: one qualified part number covers multiple board variants across different voltage domains. The full-duplex topology also means separate transmit and receive pairs, so no direction-pin toggling — useful for point-to-point links where the MCU's UART expects separate TX and RX lines.
Industrial temperature range and active lifecycle
Rated for -40°C to 105°C, the MAX14858GWE+ is built for factory-floor enclosures, outdoor telecom cabinets, and under-hood automotive auxiliary modules. For designs that need a second-source hedge, the wide supply and full-duplex pinout are shared by a few competitors in the same 16-SOIC footprint — qualify one and you have a drop-in backup.